USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...

2020

why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

9808

Related substance method equivalency on control sample or spiked sample?

779

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

3037

in sampling of raw material which side is pasted sampled labels

1848

Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

2736

Why dissolution test is not performed in all of the products

2539

what is the structure of DOWEX-50

5522

identification is for unknown? qualification for known? reporting for LOQ?

730

For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?

2320

what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?

901

Why we use potassium dichromate in uv calibration Exact reason behind it??

1264

Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

1697

in which situation require to take incident in validation?

1738

Which is the highly polar and highly non polar column in HPLC?

2315