how much mass should be there in volumetric flask while in preparation of sample for assay? 

2557

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

2117

iam usig ph buffers merk. manually how to prepare ?

2259

what is partion and column chromatography

2369

What is aggregate and fragments in SEC?

2095

What is column in chromatography?

2218

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

771

Colorimtry

1643

how you fix the limits of impurities?

825

What is rs test why we are performing rs test?

1840

In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

1960

Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

2943

What is a difference between potency and purity?

1192

Is it nessesary all multimedia dissolution require descriminatory?

783

In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

2212