Analytical Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

What is mean by peak tailing in case of GC?

5 16282

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

SG Phyto Pharma,

4 119619

What is diffrence between residue on ignition and sulphated ash?

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

37 206909

how can standardized of HCl of 0.1 N

7 49190

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 39561

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

2 11313

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

4 7449

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 4190

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

5 26608

k.f principle in finding out moisture content

1 13457

What is difference btw UV detector & RID detector

4 19469

What's the importance of these procedures?

1 5149

How precise should be the linearity in HPLC method validation?

Glenmark,

3 11966

what should be the precision during technology transfer?

Glenmark,

3 9522

why we use vanillin in melting range calibration

3 14906

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Un-Answered Questions { Analytical Chemistry }

Why irmoisture balance is used for corrugated box moisture testing

2450

Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

2911

what is classification of elemental impurities? what is risk assement in elemental impurities?

806

WHY pKa value is more important than pH value of the mobile phase in HPLC?

1810

why we are using hexane in calibration of number of drop per mL

1791

Which parameter require to do for analytical method equivalency?

820

what is the disso medium for tropsiun chloride

2311

WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

2664

What is the accrptance criteria in RSD for RS method precision on basis of impurity percentages?

884

how to calibrate hplc & gc

4559

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

2347

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

840

Tell me about analytical method validation in QC

6236

What is the formula for relative diffrence for standard solution in solution stability in validation?

861

how you establish the LOQ?

841

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