2:03 did u soak the crucible in nitric acid for 12 hours to make sure there's no other component left in there? used deionized water to wash and remove the acid before using? thank you
I want to analyze some elements in ash salt (filtrate). The ash was already got from burnt plant residue and the ash salt was prepared by leeching water through the ash material. Is it possible to analyze the already prepared ash salt. It is already in solution.
Filtration is done to ensure that any sort of interference will be filtered out, if any, present in the Ash. Ash particles, which are not dissolved in the diluent, may be filtered out.
Hai want to ask, is it necessary to use filter paper Whatman 42 ? because in my lab just have qualitative filter paper such as Ross 1a, Whatman 1PS, Munktell 1F and MGC..
Can I store the prepared sample in refrigerator and at what temperature? I want to send the sample to another place because my laboratory don't have AAS. Thank you
I plan to measure ash content and then measure mineral content and also heavy metals. For heavy metals i would like to use wet digestion method. In your opinion, do i need to make a wet digestion if i already drying ash from measuring ash content before? Thanks in advance!
If I do dry ashing before and use AAS next day, can I do like that? And what should I do? Because i don't have time enough for it. Thanks for answering
Keep the Ash sample closed to avoid contamination and prepare the sample from ash on the day of analysis in AAS. Or you can keep and store the prepared solution at 4-8 degree Celsius.
You are right. Presence of Black color means that the sample still contains organic matters. At this point we add some acid. This addition of acid facilitates to break down the Carbon strong bonds making free carbon which can easily be removed from the sample by applying additional heat.
I want to prepare a sample from mango because I need details of the ash content so please give me suggestions about how to prepare a dry sample from mango ie. From fruit.
1. Remove moisture by following this video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-DtSH8n1jbyM.html You will get a dry sample. 2. Determine ash content by following this video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-n2Qwb8Pw8YE.html
Kalkata main hamara lab hain. Iodine value determination method is already uploaded here. Same mathod should be followed for Mugha seed oil. Thank you.
