Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is mean by peak tailing in case of GC?

5 10363

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

SG Phyto Pharma,

4 100177

What is diffrence between residue on ignition and sulphated ash?

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

36 140412




how can standardized of HCl of 0.1 N

7 36076

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,

7 28153

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

2 7658

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

4 3581

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 1781




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

5 18383

k.f principle in finding out moisture content

1 10534

What is difference btw UV detector & RID detector

4 13530

What's the importance of these procedures?

1 2883

How precise should be the linearity in HPLC method validation?

Glenmark,

3 7096

what should be the precision during technology transfer?

Glenmark,

3 5645

why we use vanillin in melting range calibration

3 9020


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Un-Answered Questions { Analytical Chemistry }

What is the principle of Thermal conductivity detector and FID?

1311


how to get accurate result for Residue on evaporation in purified water

192


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

1305


Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

880


why we use sodium salicylate in uv light calibration at TLC chamber

4682






What is importance of pH in the Heavy metal test and How it effect on the test results?

863


process of Diclofenac sodium,IP.

797


How can we determine Moisture content of HI?

968


What is diffrence between extractable volume and deliverable volume? Answer pls

496


What is stray light in uv what are units for stray light

128


what is turbidimetric titration?Give 2 examples.

972


what is DIPE limit in residual solvent?

338


why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

883


What is the difference between spectro meter and spectro photo meter?

8178


Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

1584