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Sample Preparation by Wet Digestion Method for the Analysis of Heavy Metals & Minerals Using AAS

MicroChem's Experiments

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Sample Preparation by Wet Digestion Method for the Analysis of Heavy Metals & Minerals (AAS)
Wet digestion is very popular and widely used sample preparation method for analysis of heavy metals and minerals using Atomic Absorption Spectrometer. This video represents a details procedure for the sample preparation of heavy metals & minerals analysis by Wet Digestion method. __________________________________________________________________________________________
Follow us on Social Networks to Stay Connected: RU-vid: / @microchemsexperiments Facebook Page: www.facebook.c... Be with us, be a Scientist. ______________________________________________________________________________________________
Music Credit:
Sound Cloud: / whenever RU-vid Audio Library: • Roadtrip - Scandinavia... __________________________________________________________________________________________
Video Links:
Determination of Ash: • Determination of Ash C... Standard Preparation: • Standard Solution Prep... Fe Analysis: To be uploaded __________________________________________________________________________________________
Related Tag:
#AAS
#Wetdigestion
#Samplepreparation
#Heavymetals
#Minerals

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16 авг 2024

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Комментарии : 240

@user-uq1sw1ed6s 12 дней назад

Amazing

@AdnanAfzaal22 Год назад

GREAT AND SMART WORK AND VIDEO

@MicroChemsExperiments Год назад

Thank you

@aziztaouraout7630 2 года назад

Very intersting video, MicroChem team; Thanks a lot

@MicroChemsExperiments 2 года назад

Thank you. Stay with us.

@theknowledgejunkie616 7 месяцев назад

Please are glass beads compulsory? Also, what alternatives can we use if it's not available. Thank you so much for the insightful video. Great job!!!

@bhavyagurulingaiah9052 3 года назад

dear MicroChem's Experiments team: very well demonstrated. Can we use the hot plate instead of a digester for the digestion of the dry microbial sample? can this method be incorporated for liquid samples?

@MicroChemsExperiments 3 года назад

Yes. You can use Hot Plate to digest your dry microbial sample. This method is also applicable for liquid sample.

@dwisworo332 3 года назад

Interesting video, MicroChem 1. Do you have reference method for the procedure? Perhaps by ASTM or the likes? Would appreciate if you can mention this in description. 2. Suppose the sample is a representative of larger material, is there any requirements for the sample? Particle size? Homogeneity? 3. I noticed there are two oxidizing agents used i.e nitric acid and perchloric acid. Is there any reason why? Could we make do with only nitric acid? Would appreciate if you could explain the particular reaction between each chemicals with the element of interest (maybe As or Pb?) Anyway, looking forward for the Fe by AAS video.

@MicroChemsExperiments 3 года назад

Answer: 1. We developed this method at our lab by combining several methods. So no official reference method for this. 2.Sample should be crushed and blended and homogeneous portion of sample should be taken for the test. 3. Perchloric acid helps to digest sample properly. So you must use Nitric acid along with the perchloric acid to digest your sample properly. *We will make video for Fe analysis by AAS later. Stay with us.

@markjoshuavibar6327 8 месяцев назад

Hello. I have 3 questions. I hope you guys respond to me. 1. Is there any difference in procedure when we use this wet digestion method for heavy metals of fish flesh samples? 2. Incase, how will we dry the fish samples? How many grams we will be needing? 3. Is this wet digestion can detect various metals after AAS? Or is this method only specific with limited metals? Thank you so much!

@anissasemoud6145 Год назад

Thanks for the video. Can I keep the simple after digestion for 15 days before analysis with AAS?

@MicroChemsExperiments Год назад

You can keep it in the refrigerator at 4 degree Celsius

@user-uq1sw1ed6s 15 дней назад

How we can collect samples and quickly preserve?

@kipkorirgideon 3 года назад

Good video MicroChem's Experiments, one question though where is the "Fe Analysis: To be uploaded" video? I can't find it in your channel.

@MicroChemsExperiments 3 года назад

Coming soon!

@gracefulheart7910 3 года назад

Thankz a lot Mam. But please upload the procedure for creating method file for AAS thermoscientific

@MicroChemsExperiments 3 года назад

We are working on it. Please wait for few more days. Thank you.

@olivierjakin3942 2 года назад

Thanks!! This is really helpful.

@MicroChemsExperiments 2 года назад

Thank you

@sukruthas.k2411 7 месяцев назад

Can v use the same method for the analysis of minerals in liquid samples using ICP OES

@yacobtesfamariam6400 2 года назад

Thank you for the explanatory video. When you left the flasks in fume hood to digest the sample in ambient temperature for 24hr do you also left the fume hood power on?

@MicroChemsExperiments 2 года назад

We don't practically but it should be kept the power on

@yacobtesfamariam6400 2 года назад

@@MicroChemsExperiments Thank you for the information. I appreciate that.

@MicroChemsExperiments 2 года назад

@@yacobtesfamariam6400 you are most welcome Sir.

@ridaaman334 3 года назад

Very well explained 👍 I have a Question that why we prepare blank??

@MicroChemsExperiments 3 года назад

Blank is prepared to minimize the reagent reading.

@MicroChemsExperiments 3 года назад

Blank is prepared to minimize the

@faisalusmani2156 2 года назад

@@MicroChemsExperimentscan you elaborate the minimize the reagent reading?

@CltchTm 8 месяцев назад

Can we use this for finding calcium concentration for a plant sample?

@sadatabuhanif7220 3 года назад

How can you throw Acid like that, in the sink as well? It's bad for your pipe and the environment. I appreciate your video, but you must keep every aspect, especially health and safety issues

@MicroChemsExperiments 3 года назад

You are right but It is not possible to maintain everything (e.g: disposal of acid) in the video within a very short time. Because our main focus is to present the test method appropriately. Some times we pipette concentrated acids in the open place, without using the fume hood. We did like that to just shorten the video length. So please maintain health hazard issues at you laboratory while following my video. Thank you so much for being with us. We are a family. Peace.

@shehryar8532 Год назад

@@MicroChemsExperiments you are right ✨✨

@saharkf3158 2 года назад

Thanks for the video. How we can do the AAS test on silica and kaolinite sample? what would be the solution for dissolving them, and exactly what proportion? like this?

@MicroChemsExperiments 2 года назад

Follow this sample preparation strictly.

@saharkf3158 2 года назад

@@MicroChemsExperiments Exactly same procedure and same material?

@MicroChemsExperiments 2 года назад

@@saharkf3158 Yes

@EliElordi 6 месяцев назад

Hi, can share the method for Arsenic and mercury digestion in food samples? Is this procedure applicable for Arsenic and mercury as well?

@MicroChemsExperiments 6 месяцев назад

Yes. Same procedure should be followed

@nilminijayalath8177 3 года назад

excellent

@MicroChemsExperiments 3 года назад

Thank you

@ricardopedroza3296 3 года назад

Nice video. Do you have any reference paper describing that procedure?

@MicroChemsExperiments 3 года назад

Sorry. This method is developed at our lab. No reference is available.

@i2eric452 Год назад

Why should the digestive flask be left for 24hrs? is it because we need to wait for the reaction (acids and sample) to fully happen?

@MicroChemsExperiments Год назад

Yes.

@smaismaeil6262 2 года назад

What about analyzing the results after the measurement on the atomic absorber .... Is there a video????. ... Thank you

@MicroChemsExperiments 2 года назад

We didn't prepare this prepared sample analysis video but we have other video regarding the analysis using AAS. Link: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-YZ3XeXTFH1w.html

@mayurvaliya2952 2 года назад

Which standard range (like 1 ppm, 5ppm, 10 ppm) should be calibrate for higher concentration of element of choice??? For instance 1,00,000 ppm.

@MicroChemsExperiments 2 года назад

Prepare calibration curve using 1ppm, 2ppm & 4ppm....not more than that. Dilute the sample to suitable dilution and analyze.

@aminadz7890 Год назад

Thanks for sharing, is it suitable for all sample kind ? Végétale Biomass and soil ??

@MicroChemsExperiments Год назад

Yes

@mayurvaliya2952 2 года назад

Will there be any elemental loss in fumes while heating?? Phosphorus particularly??

@MicroChemsExperiments 2 года назад

Nop

@akehenrijoelake2007 Год назад

Good evening. I have a tannery effluent (liquid) that I want to digest for Cr(VI) by the diphenyl carbazide method. What is the appropriate method. Thaks

@MicroChemsExperiments Год назад

You can use this method for Cr (VI)

@chidiorieke6002 2 года назад

Dear MicroChem's Experiment team, I have a question and need help: I have weighed 1.0153g of a sample and digested with 20 ml of acid mixture, then after digestion, distilled water water added to make up the volume to 250 ml. Then 25 ml of the sample solution was taken and titrated against 0.01 N EDTA and 0.2 ml of EDTA was used to get the end point, to calculate the Calcium content and the formula I should use

@MicroChemsExperiments 2 года назад

This method is applicable for the mineral analysis using AAS.

@anissasemoud6145 Год назад

Thanks for this video. I have a question. Can I digest then stock the simple before analysis with AAS for 15 days at 4°?

@user-uq1sw1ed6s 12 дней назад

Why you used blank sample?

@mayurvaliya2952 2 года назад

Please share the sample preparation method for Organic fertilizer by ICP OES.

@MicroChemsExperiments 2 года назад

Noted

@Shashikumar55822 2 года назад

For diacid, instead of perchloric we can use HCL for FE, Zn analysis. Plz reply

@MicroChemsExperiments 2 года назад

No

@anissasemoud6145 Год назад

Good morning. I did a wet digestion using this procedure in order to dose aluminium by AAS. In the end I obtained a clear sample after filtration and dilution with pure water but after 24 hours, the sample becomes cloudy (white). I don't know the cause. Is it normal? I have never do or see wet digestion

@MicroChemsExperiments Год назад

We have mever seen like this. Repeat the test avoiding any sort of chemical contamination

@PrabhjotSingh-ik2ql Год назад

Pls make video on prepare mercuric nitrate solution 0.01 N in 1 ltr and standardized

@MicroChemsExperiments Год назад

Noted

@ashwitshetty9725 Год назад

Should I keep the flask for digestion in ambient temperature for 24 hrs or 12 hrs

@MicroChemsExperiments Год назад

12hour is enough

@charliefronda5131 3 года назад

can i use a heavy metal testing kit in analyzing the sample?

@MicroChemsExperiments 3 года назад

Thats a different thing. You can analyse using the testing kit. But analysis using AAS provides more accurate test results.

@mohammadshahdathossain5209 3 года назад

💥💥💥

@MicroChemsExperiments 3 года назад

❤❤

@Shashikumar55822 2 года назад

Is there any specific amount of deionized water to add, to conduct fe, zn,analysis? Reply please

@MicroChemsExperiments 2 года назад

You can volume 25ml or 50ml by adding DI water

@mindtalksss3384 2 года назад

Heavy Metal content in food sample can be analysed by both way i.e dry ashing or wet digestion. My doubt is which way is preferable and why? Please give insight on this issue madam🙏

@MicroChemsExperiments 2 года назад

Wet digestion is the best as it has low possiblity of metal loss.

@amangul6529 3 года назад

Kindly tell procedure of texture analysis using texture analyzer.and color using colorimeter Of cake sample.

@MicroChemsExperiments 3 года назад

Noted. Stay with us.

@FathiaOlabisi-kk6de 5 месяцев назад

Why do we use conc acid for digestion

@MicroChemsExperiments 5 месяцев назад

To digest sample completely

@alyokasha6405 Год назад

can I use this method for the determination of mercury in fish and plant samples?

@MicroChemsExperiments Год назад

Yes. You can

@prasenjit838 2 года назад

How to check food products present in lead..,and how to check food products amount of lead

@MicroChemsExperiments 2 года назад

Prepare your sample as shown in this video and analyze using AAS.

@krishnendumondal9542 2 года назад

Can I use this method to prepare my sample for ICP-MS? Please reply. Thank you @ MicroChem's Experiments team

@MicroChemsExperiments 2 года назад

Yes. You can

@rajeshchaturvedi6923 3 года назад

kindly provide titrametric method for the determination of selenium in sulphuric acid

@MicroChemsExperiments 3 года назад

I am confused about the avaibility of selenium determination titrametric method. If you have any reference known, please let us know.

@drupenymphaelilly1660 3 года назад

can I use this method for the determination of calcium and magnesium both in soil and plant samples.....waiting for your kind reply....

@MicroChemsExperiments 3 года назад

Surely you can analyze your sample for any kind of minerals by following this method.

@samsoumsamsoum171 2 года назад

Hello......Can you help me choose the best method of digestion.....dry or wet digestion...and what is the best weight for food samples?

@MicroChemsExperiments 2 года назад

Go for the wet digestion method

@gerheart33 Год назад

Whats the essence of glass beads pls does the glass bead prevent explosion also what is glass beads are the recoverable in solution or they have no effect on the digestion process or elemental losses or contamination Pls give me some common examples of glass beads

@MicroChemsExperiments Год назад

Glass beads are used to prevent explosion which has no other effect on testing

@Minnu0108 5 месяцев назад

can we use this method for lechate digestion instead of sample used in video ?

@MicroChemsExperiments 5 месяцев назад

Yes.

@Shashikumar55822 2 года назад

We can use both triacid Or diacid for this analysis right.

@MicroChemsExperiments 2 года назад

Diacid

@Shashikumar55822 2 года назад

We can use Aqua regia for plant samples eg; seed. for digestion and for mineral analysis in AAS? Please reply

@MicroChemsExperiments 2 года назад

You can use

@Shashikumar55822 2 года назад

Thank you

@Shashikumar55822 2 года назад

What about using aqua regia for sample digestion

@MicroChemsExperiments 2 года назад

No need to use here

@madhumithaganesh4560 Год назад

Hello, I am pursuing a research, for which i need to estimate calcium in hair samples. can you kindly guide me on this. Kindly reply. Thank you

@MicroChemsExperiments Год назад

Try this method for sample preparation

@husseinalkhazaali3435 2 года назад

Hi. How are you? Can we use the way fo the soils samples to determine the total N?

@MicroChemsExperiments 2 года назад

No. You can use this method for nitrogen content.

@MicroChemsExperiments 2 года назад

You can determine the Nitrogen Content of your soil sample by the following video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-yJesl8hlbqs.html

@fidiologyofficial1013 2 года назад

How will it be analyzed in AAS? i mean Residues of Filter papers will be analyzed or the solution present in a flask will? Kindly reply.

@MicroChemsExperiments 2 года назад

Solution present in the flask will be analysed

@bappyhossain7639 2 года назад

Can we use this method for preparing soil sample ( sediment)...??

@MicroChemsExperiments 2 года назад

You can

@servenduranjan9 5 месяцев назад

Can I use this procedure for feather digestion?

@MicroChemsExperiments 5 месяцев назад

Yes. You can

@anndimma6444 2 года назад

Can I use this method in the determination of heavy metals in palm oil?

@MicroChemsExperiments 2 года назад

Yes. You can.

@subas6291 2 года назад

Can I use same procedure for leaves, stems and roots of a plant

@MicroChemsExperiments 2 года назад

Yes

@nurzuriatibintiwildani9910 2 года назад

Why the flask must be soaked for 12 hours before used?

@MicroChemsExperiments 2 года назад

To remove any sort of dirt, impurities & contaminants

@kashmiriboy2177 2 года назад

What is difference between partial and complete digestion??

@MicroChemsExperiments 2 года назад

Take help from Google

@javariyahassan3725 3 года назад

Can I use this method for detection of heavy metals and minerals in waste water?

@MicroChemsExperiments 3 года назад

Yes. You can use for waste water.

@ChemistryTipsTricks 3 года назад

Sir, how to prepare urine sample for wet acid digestion? I have done blood sample but never done any urine sample, plz let me know

@MicroChemsExperiments 3 года назад

You can prepare urine sample in the same way described in this video. But take 10ml of urine sample in the flask instead of 2g. Rest of the procedure will be unchanged.

@ChemistryTipsTricks 3 года назад

sir, I am using hot plate. Ok will take 10 mL urine.

@MicroChemsExperiments 3 года назад

@@ChemistryTipsTricks You can use Hot Plate but you have to digest the sample properly to get the accurate results

@Shashikumar55822 2 года назад

Is calorimeter used for iron analysis in sample like seed ? Plz reply

@MicroChemsExperiments 2 года назад

Use AAS for best result

@ayoubtj5128 3 года назад

2:1 is a volumic fraction of acids?

@MicroChemsExperiments 3 года назад

Yes.

@Shashikumar55822 2 года назад

We have to use distilled or double distilled water?

@MicroChemsExperiments 2 года назад

Deionized Water

@Shashikumar55822 2 года назад

Hello ma'am for sample digestion we can use aqua regia? Is that correct

@MicroChemsExperiments 2 года назад

Yes. You can

@Shashikumar55822 2 года назад

@@MicroChemsExperiments for mineral analysis in plant samples eg seed? Is that correct

@karntokaali9778 3 года назад

Please I want information about how digestion serum blood sample to assess zinc and selenium by AAS

@MicroChemsExperiments 3 года назад

Karntoka Ali, you can analysis your serum sample for Zinc & Selenium by following our video of WET DIGESTION. No modification is needed.

@karntokaali9778 3 года назад

@@MicroChemsExperiments 🌺🌺🌺🌺 where's serum sample 😓 I just see powder sample Sorry for stupid question ^_^

@MicroChemsExperiments 3 года назад

@@karntokaali9778 I didn't use serum sample in my video but if you want to analyze serum sample then you can follow the sample methodology shown in this video.

@ees5640 2 года назад

Can I use this method to extract gold from rock samples??

@MicroChemsExperiments Год назад

no

@Shashikumar55822 2 года назад

For filter we can use whattman no 1 filter paper? Plz reply

@MicroChemsExperiments 2 года назад

Yes. You can

@meenakshitrilokia5231 3 года назад

can i digest the food sample with the same method by using heating mantle ?

@MicroChemsExperiments 3 года назад

Meenakshi Trilokia, yes. You can digest on heating mantle. But you should be careful to avoid dryness of some part of the bottom surface of a conical flask or beaker. That may lead to sample loss. Round bottom flask using is more desirable for this purpose.

@happinessonl Год назад

Is this procedure applicable for animal saltlick

@MicroChemsExperiments Год назад

Yes

@Shashikumar55822 2 года назад

Triacid Or diacid mixture

@MicroChemsExperiments 2 года назад

Diacid mixture

@chelangatmercy7056 2 года назад

How about analysis of heavy metals present in sausages

@MicroChemsExperiments 2 года назад

Sample sample preparation

@fazlakhan3006 2 года назад

How will we use this method for spices

@MicroChemsExperiments 2 года назад

Same method

@nirjasaikia578 10 месяцев назад

What is procedure after sample preparation?

@MicroChemsExperiments 10 месяцев назад

Run the sample in AAS, ICPMS or ICP-OES

@augustafrancis254 3 года назад

Please why is nitric acid used instead of other acids ?

@MicroChemsExperiments 3 года назад

There are some other methods where HCl & H2SO4 is used. But We developed this method using HNO3 combined with Perchloric Acid and found best digestibility of HNO3. Thats why HNO3 is used for the digestion.

@ayeshasadiqua8636 8 месяцев назад

Can we use the same method for detection of Heavy metals in egg shells of chicken? Can we use HNO3 and HCl 3:1 or per chloric acid is compulsory??? On hot plate for how much time we have to heat for complete digestion????? @microchem experiments ?

@lorenbelardo853 3 года назад

What is the reason why glass beads underlie the digestion process?

@MicroChemsExperiments 3 года назад

Glass beads are used as an anti-bumping agents. Glass beads does not interfare the chemical reactions but prevents bumping the acid solution during heating at higj temperature.

@gerheart33 Год назад

Pls can i get an example

@gerheart33 Год назад

Ot its just broken glass i can buy from the market or i can break and pour into it

@shafadaraillona7850 3 года назад

nice video what the nitric acid used for??

@MicroChemsExperiments 3 года назад

Nitric acid is used for the digestion of our sample.

@shafadaraillona7850 3 года назад

i'm sorry i'm not that good at chem.. what is the purpose of digestion?

@MicroChemsExperiments 3 года назад

Geranally sample is a complex organic compounds. In the digestion process, each of the complex bonds are broken down in the presence of acid, heat and sometime catalyst. When all of the bonds are broken down, all of the minerals and heavy metals are released which can be quantified using AAS.

@shafadaraillona7850 3 года назад

thank u so much, good luck for the next chemistry project!!!

@MicroChemsExperiments 3 года назад

@@shafadaraillona7850 Thank you so much for your support

@SM-nc4nw 3 года назад

Can i use this method for fresh samples of milk for mineral analysis??

@MicroChemsExperiments 3 года назад

Yes, you can use for minerals analysis of fresh milk samples.

@Shashikumar55822 2 года назад

This is the only method for digestion? Is there any different methods

@MicroChemsExperiments 2 года назад

Yes there are other methods available but I made only one.

@Shashikumar55822 2 года назад

@@MicroChemsExperiments in those methods aqua regia is the one method? right?

@boakyeansahisaac9762 3 года назад

why did you use 65% v/v of the acids instead of a 100% concentrated ones?

@MicroChemsExperiments 3 года назад

65% nitric acid is enough for this purpose. But if you want, use 100%

@dwisworo332 3 года назад

There is no such thing like 100% nitric acid in liquid phase at STP. Period.

@MicroChemsExperiments 3 года назад

@@dwisworo332 You can use 65%

@dwisworo332 3 года назад

Just curious, did you dilute the nitric acid? The container and labe look like ones found on standard 65% Nitric acid GR by Merck.

@MicroChemsExperiments 3 года назад

@@dwisworo332 We didn't dilute the nitric acid. The purity of the nitric acid is 65%

@jestonilanggido2904 Год назад

Can this method used in blood serum heavy metal analysis?

@MicroChemsExperiments Год назад

Yes

@jestonilanggido2904 Год назад

@@MicroChemsExperiments our sample is in microvolume of serum only. Can you help us design our method sample preparation before can we proceed to the AAS anaysis?

@the_NIT_guy Год назад

can i use this procedure for greasy sample?

@MicroChemsExperiments Год назад

Not sure. But you can try

@Shashikumar55822 2 года назад

We can use only diacid Or triacid plz reply

@MicroChemsExperiments 2 года назад

Diacid

@tayyabbilal1660 2 года назад

How can we prepare meat sample for wet digestion? For AAS

@MicroChemsExperiments 2 года назад

Yes. You can

@tayyabbilal1660 2 года назад

@@MicroChemsExperiments what can be procedure for that? My assumption is to dry the meat at 55 for 24-48h to remove moisture and next will be according to you

@tayyabbilal1660 2 года назад

@@MicroChemsExperiments guide me

@sumanabalo2984 3 года назад

Can I prepare soil and plant sample in this process ??

@MicroChemsExperiments 3 года назад

Yes. You can.

@user-zt2ce8bv1v 2 года назад

What is the plant used?

@MicroChemsExperiments 2 года назад

You can use

@saminatahirkiani9806 3 года назад

Please share detail protocol of water sample digestion I m lit bit confused

@MicroChemsExperiments 3 года назад

Take 2ml water sample in the digestion flask and proceed in the same way as described in this video

@saminatahirkiani9806 3 года назад

@@MicroChemsExperiments thank you

@MicroChemsExperiments 3 года назад

You are welcome

@saminatahirkiani9806 3 года назад

@@MicroChemsExperiments one more question ..if I will digest the sample using the method 3:1 Hno3/HCl..what should be volume of Hno3 and Hcl...becoz I don't have perchloric acid instead of that I will use HCl ..I m confuse about the volume of both chemicals

@Shashikumar55822 2 года назад

@@saminatahirkiani9806 HCL :HNO3 =3:1

@thelivinglife7549 Год назад

I tried to digest vegetable sample with sulphuric acid and hydrogen peroxide on hot plate for heavy metal analysis but no color change. Why???

@MicroChemsExperiments Год назад

Why did you try with Sulfuric Acid? Do according to this video and use nitric acid

@asaadha80 2 года назад

Hi, is the procedure suitable for cheese samples?

@MicroChemsExperiments 2 года назад

Yes.

@asaadha80 2 года назад

@@MicroChemsExperiments thanks

@MicroChemsExperiments 2 года назад

@@asaadha80 Welcome

@basilsajeev2759 3 года назад

Can I use this for plant samples?

@MicroChemsExperiments 3 года назад

Yes. you can use this method for plant sample.

@teacherscommunity2552 2 года назад

can u plz share reference of a paper having this wet digestion method ?

@MicroChemsExperiments 2 года назад

This is in-house developed method

@teacherscommunity2552 2 года назад

@@MicroChemsExperiments but u have adopted this method from some already existing method and then modified it by ur own. Can u plz elaborate about the parent method from which u hv modified this one ? kindly

@MicroChemsExperiments 2 года назад

@@teacherscommunity2552 Ok we will provide you later.

@Sirat-e-Mustaqeem2821 4 месяца назад

Kindly share Reference

@MicroChemsExperiments 4 месяца назад

It is a laboratory developed inhouse method

@metuberob Месяц назад

welcome lab first day noobs ... cleaning glassware for 8 hours a day before they let you do anything cuz you're on the bottom rung of the ladder and the newest staff there ..

@shaysaeednoori 3 года назад

Can I digest the fish gills and liver with the same method using a hotplate?

@MicroChemsExperiments 3 года назад

Saeed Noori, yes, you can apply the same method. But you should use a digester because fish gills & liver may take longer period of time to digest and in hot plate technique nitric acid removes rapidly. So if you use hot plate then you have to add addition 10ml of nitric acid in sample and blank beakers in the middle of digestion period to prevent rapid dryness of the beakers.

@shaysaeednoori 3 года назад

@@MicroChemsExperiments thanks

@MicroChemsExperiments 3 года назад

@@shaysaeednoori Welcome

@anaswaras2946 2 года назад

Please mention the Reference

@MicroChemsExperiments 2 года назад

Inhouse validated method

@bappyhossain7639 2 года назад

References..??

@MicroChemsExperiments 2 года назад

No reference.

@mkorn100 3 года назад

Sorry, but I've observed a lot of experimental mistakes. It isn't acceptable.

@MicroChemsExperiments 3 года назад

May be we did a lot of mistakes, we could not do everything what we should do in the lab. This is just because we wanted to shorten our video length, thus skipped many things about the quality control of the test. We just focused on the main procedure of our target test. We are sorry for our mistakes. Plzz do the experiment in your lab correcting every mistakes based on your expertise. Thank you.

@startingsport9926 Год назад

Can I use this method for platinum and precious group metals analysis without fire assay?

@MicroChemsExperiments Год назад

Yes. You can use

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