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for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol
1 6070we run the same sample in same method in different flow rates in HPLC,any changes in sample analysis?
2 7521For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?
4073For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
2314stability study is going on up to 3years for famotidine-USP but the pharmacopeia is revised and tlc test is replaced with hplc test. At the 4th year frequency the product is failed in hplc test .how can i assain the expiry or retest date and can i stop or continue the programme?
2 6623Post New Analytical Chemistry Questions
we can use expired sample for validation and analyst qualification?
sop of a uv visible spectrophotometer double beam elico model
What is a difference between potency and purity?
how you establish the LOQ?
What is split ratio in Gc? Splitless? how requirr to select?
How doing qbd practically?
mode of absorption in alimentary canal?
What is delay volume?
how many types of balance calibration test?
What are the primary considerations in extractables and Leachables ?
about method developement in hplc
Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?
How to set analytical specification for combination products?
why cone formation during dissolution?
While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?
