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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is difference between Potency & purity

3 15189

how to hplc calibrated

Dr Reddys, Glochem,

4 52871

state the principle of gas chromatography?

5 13870

Why noise test is performed at 254 nm in calibration of HPLC system?

4 18353

some compound havving uv region but not give much more response during hplc analysis

2 7553

I have got selected for Aurobindo Pharma AR&D, HR person is asking me to sign in agreement. can I join?

Aurobindo,

19 44541

Why sulfuric acid is used in sulphated ash / residue on ignition test.

CS Pharmaceuticals, Dr Reddys, GVK, HPLC, Micro Labs, Samrudh, Watson Pharmaceuticals, Wings Customer Care,

9 78595

what are the basic requirement for the WHO audit?

BioPlus,

1 9219

What is the thickness of polystyrene film?

Pharmaffiliates Analytics and Synthetics,

8 19562

During Validation study, Recovery is passing at all levels but Linearity is failing. Justify?

Mylan, Torrent Pharma,

1 5178

What is Stray light ? & what is the IMP of this

2 10237

how can I make the copper get white bye any salt or acit?

2210

If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

2302

why we use only sucrose in the calibration of polarimeter?

Kilitch,

7 28491

What is the Deference between Bulk density & Tap density ?

Hikma Pharmaceuticals, Neuland, Reddy Labs,

2 25704


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

1900


what is definition of validation? which components are followed give detail?

2374


While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

2867


Qc interview questions

1743


how the compound separate in coulunm,explain

2533


What is mean by PDR?

948


For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?

1908


what is mean by covalidation

785


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

2580


what you do when compound having dwel wavelength?

750


We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

1907


How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

2546


give clarity of linearity and range in method validation

2420


Colorimtry

1660


UV and PDA detector, which have less signal to noise ratio?

1132