How to fix the concentration for RS by HPLC

Answer Posted / ram

The common procedure for fixing the LOQ is assuming u r specification as 100 % and we have to achieve LOQ below 50% of specification, here impurities are may be known or unknown.
for exm. known imp limit is 1.0 % then u should try to get LOQ below 0.5%, however if u try for very low level then it is well n good.

All unknown impurities will have spe of 0.1% limit and we have to do validation of unknown with active .

Is This Answer Correct ?    4 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

1603


What are the primary considerations in extractables and Leachables ?

1767


[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

297


is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

1644


Identify problem faced when mass spectroscopy is used with HPLC system ?

1365






How would you decide dissolution medium for NCE compound of class I drug

1681


What is column in chromatography?

1749


WHAT IS THE USE OF STARTER ?????????

1892


Why potassium dichromate is used in calibration of uv?

1370


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?

3479


analytical method validation require to with respect to release specification or shelf life specification?

264


As per ICH related substances stability trend limit from initial to shelf life

2648


how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2025


Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?

1363


how you start RS method development when for new product?

278