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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 6141we run the same sample in same method in different flow rates in HPLC,any changes in sample analysis?
2 7622For 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?
4134For 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?
2356stability 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 6725Post New Analytical Chemistry Questions
Qc interview questions
why octanol used to determine the partition coefficient ?
How do we fix the sample concentaryion in hplc method development. What is the basis?
What is the diffrence in japan mkt requirement in analytical method validation over US?
What is column in chromatography?
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
How to do regeneration of Metacarb Pb plus column?
on the basis of bcs class how to proceed the solubility?
which are the sizes of capsules?
Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...
What is the principle of Thermal conductivity detector and FID?
What is importance of pH in the Heavy metal test and How it effect on the test results?
How much is the standard area for glc analysis
is it nessesary to do solution stability for 7 days?
how to develop the icp ms method? Application of icp ms?
