Is it nessesary all multimedia dissolution require descriminatory?

861

for inorganic molecules require to do RS, Assay and disso?

778

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

1932

How can the GC or HPLC method is selected to determine the impurity profile in drug product?

7676

Why we check moisture,ash & AIA in product

1943

4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

2770

What is the calibration of uv process and preparation

2047

how require to fix the linearity and accuracy cincentration range?

1740

In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

3086

if tech transfer fails whay require to do?

895

What is aggregate and fragments in SEC?

2159

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

1654

How much is the standard area for glc analysis

2333

Why a1% value is used for some product ? What is the criteria for selection a1% value ?

2395

calibrtion procedue of LC-MS

2761