How to develop the method when we have very low amount of
impurity?
Answer Posted / balaji
IN THIS CASE INCRESE SAMPLE CONCENTRATION EG; MY DRUG KNOW
IMPURITES LIMIT IS 0.05% UNKNOW IMP LIMIT IS 0.03% INTHIS
CASE STD PREPARATION IS 5MG/100 FURATHER 1/100 THIS IS KNOW
IMPURITES CONCENTRATION 3/100 AND 1/100 THIS UNKNOW IMP
MEANS API, SAMPLE CONCENTRATION IS 1MG/ML IF STD AREA IS
NOT COME INCRESE THE SAMLE CONCENTRTION MEANS
10/100*1/100*10/20*100=0.05% SAMLE CONCENTRATION IS 2MG/ML
| Is This Answer Correct ? | 1 Yes | 3 No |
Post New Answer View All Answers
how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.
What should be the level/ Percentage of Arsenic in Arsenic free zinc.
why xterra column require to use at higher ph?
How to fix the sample conc. in Related substances test by HPLC?
Which parameters require to do in tech transfer?
how pda detector works over uv?
What is viod volume and peak purity in HPLC?
what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me
what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?
Why we check moisture,ash & AIA in product
if instrument calibration fails then what require to do?
In which situation we require to prepare the standard solution from sample in Related substance method?
What are modes of quantification in related substances
How to choose the which salt is suitable for mobilephase
how to set sample and standard concentration in RS method?