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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is a differance between assay by HPLC and assay by titration?

 5 28753

what is PH of 0.1N Hcl, 0.01N Hcl & Mehanol.

 3 46951

what is batch no. of prednisole tablet.

Dr Reddys,

8 14570

HOW RRF IS CALCULATED IN HPLC

 2 11545

why should we do limit of stray light in UV calibration and why should use potassium chloride

 2 29173

why ph is between 0 to 14

Apotex, Reliance, Zydus Cadila,

6 22344

what is the definition of limit of stray light in UV calibration

FDC, Zydus Cadila,

1 25016

what is the dipolement and how it is related to IR

AJ Square Inc, Aurobindo,

1 7779

why we are using in ph calibrations ph4,7,9.2 buffers only?

Reddy Labs,

5 17910

why hexane is used for FID calibration in GC

Glochem,

1 4382

what is %labelled amount in content uniformity of dosage unit and its calculation?

Zydus Cadila,

4633

how to prepare 5normality of hcl

2 45707

in pentoperazole capsules usp why assay value is substract from dissolution

Ranbaxy,

1 3442

diference b/w packed &capilary columns

 2 7587

how to prepare 5 normality of h2so4 solution

Symbiotec,

3 74559

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Un-Answered Questions { Analytical Chemistry }

what is biorelivent dissolution media?

308

in each media we require to use SLS? how to proceed?

303

if tech transfer fails whay require to do?

339

Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

991

why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?

1186




What is the Formula for coreletion coefficient in plhplc calibration

1255

why we should take dst factor for below 1%moisture samples

2205

How to set specification of assay, fisdolution and related substances?

372

on saturation solubility study data how we can find out the bcs class of drug?

369

How to fix the sample conc. in Related substances test by HPLC?

619

calibrtion procedue of LC-MS

2153

what is turbidimetric titration?Give 2 examples.

1992

process of Diclofenac sodium,IP.

1679

what is diffrence between specificity and selecivity?

320

What is the difference between purge septum flow and column flow in gas chromatography?

1846

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