for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol1 3556
we run the same sample in same method in different flow rates in HPLC,any changes in sample analysis?2 4737
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?2413
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?858
if the flow rate is increases then any changes in retention time in hplc1 5367
what is the limit of Correlation for IR test compare to the standard and test3 5698
IS THERE ANYWHERE MENTION THAT THE RE PROCESS BATCH REQUIRE TO KEPT STABILITY STYDY2 3652
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?2 3631
how to correct peak when peak comes broader in shape? How to do calibration of HPLC?2 5292
what is the origin to prepare standard operating procedure
How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium
how to get accurate result for Residue on evaporation in purified water
Why potassium dichromate is used in calibration of uv?
What is third generation HPLC Columns?
some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?
Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?
what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me
mode of absorption in alimentary canal?
is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth
Why perchloric acid used for potentiometric titration
What is the difference between spectro meter and spectro photo meter?
what is turbidimetric titration?Give 2 examples.
In HPLC (Waters) software Empower1,2 &3 what is the updation for each version
In IR spectra, generally a molecule vibrates without apply emr or ir light?