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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is mean by peak tailing in case of GC?

 5 14083

why we are taking 85 ml of concentrated HCl to prepare 1N Solution

SG Phyto Pharma,

4 116138

What is diffrence between residue on ignition and sulphated ash?

Aurobindo, Cadila, Dr Reddys, Mylan, Panas Pharmaceuticals, Piramal Healthcare, Remidex, Zydus Cadila,

37 192216

how can standardized of HCl of 0.1 N

 7 46443

What is the difference b/w OVI Solvents and Residual Solvents in case of Gas Chromatogaphy and What is its Detection Limit?

Jubilant Organosys, Suven Life Sciences,

8 36335

what is the diffrence between absorbance and absorption in the beer,s lamber formula ?

 2 10074

one gram of which below elements has the most atoms in its? a) H b) D C)T D) He

4 5961

0.1 atom gram of the unknown element( X)reacts with 2.4 gram of O2 to produce the oxid product . can you tell us, what is the oxid formula ? a) XO b)X2O3 c)XO2 D) X2O4

Ajanta,

1 3381

Why we use Uracil for HPLC calibration in Detector wave ength accuracy test?

 5 24477

k.f principle in finding out moisture content

 1 12638

What is difference btw UV detector & RID detector

 4 17834

What's the importance of these procedures?

 1 4327

How precise should be the linearity in HPLC method validation?

Glenmark,

3 10272

what should be the precision during technology transfer?

Glenmark,

3 7942

why we use vanillin in melting range calibration

3 13341

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Un-Answered Questions { Analytical Chemistry }

how you establish the LOQ?

313

what is mean by peak intigrity?

340

How to calibration of the uv spectroscopy and its test?

672

If combination product how require to identify which imp is of which api?

324

how you determine moist.of NaOH sol or NaOH flacks

1771




what is the extinction coefficient for Indomethacin or at 319nm wave length.

3521

what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?

9439

In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

2714

how require to select dissolution media? what is discrimination?

315

what is mean by dissolution biowaiver study?

328

what is partion and column chromatography

1819

WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

2143

A ha tc is actual defination of retention time?

1063

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

342

What is Band broading effect explain

1400

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