How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?

703

why multimedia dissolution require to do?

757

if content uniformity passing but dissolution varrying then what is next step?

832

What is the diffrence in japan mkt requirement in analytical method validation over US?

699

In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

3446

WHY given much noise PDA dector then VWD Dector

2062

Which parameters require to do in tech transfer?

713

Why irmoisture balance is used for corrugated box moisture testing

2377

My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

1567

How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

2558

How can I develope method of dissolution by HPLC OR UV

2368

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

1825

why octanol used to determine the partition coefficient ?

2423

what is the principle involved in turbidometry and nephelometry ?

4134

function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

2625