for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

Watson Pharmaceuticals,

we run the same sample in same method in different flow rates in HPLC,any changes in sample analysis?

For 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?

For 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?

if the flow rate is increases then any changes in retention time in hplc

Whatn is HPLC

HPLC, Jubilant, Orchid,

what is the limit of Correlation for IR test compare to the standard and test

Nakoda Chemicals,

IS THERE ANYWHERE MENTION THAT THE RE PROCESS BATCH REQUIRE TO KEPT STABILITY STYDY

Nakoda Chemicals,

why holmium perchloate solution in Uv calibration

Alembic,

why do we have to used saturated ammonia in TLC

Cipla, IPCL, Mylan,

stability 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?

Nakoda Chemicals,

how to correct peak when peak comes broader in shape? How to do calibration of HPLC?

Mankind,

HOW TO CALIBRATE HPLC OVEN

Mylan,

What is importance of pH in the Heavy metal test and How it effect on the test results?

which light is used in FT-IR spectroscopy

Hetero,