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 the difference between kf and LOD

Enaltec Labs,

5 22647

What is chiral and why this performing in HPLC

Hetero, Macleods,

4 20823

How to Calibrate NMR instrument ?

Reddy Labs,

1 5553

what is difference b/w spectroscopy, Spectrometry and Spectrophotometry ?

Reddy Labs,

1 12285

Hello Dear all; I have a technical question related to analytical Chemistry, I have a sample of (40% w/w) Ferric Chloride solution (for water treatment purposes which consist a little portions of Ferrous Chloride and Hydrochloric acid. I need to know the methods to determine the percentages of each Ferrous Chloride and Chloride acid. Also I want to make sure that this solution is truly (40% w/w). So ANY CLUE !!! Thanks in advance.

2 4843

What is the meaning of 624 in DB-624 Capillary column used in GC?

Aurobindo,

5 28710

In Agilent HPLC calibration using Empower 3 Software, What is the criteria for GPV Baseline starting point? i.e., Either it can start from -0.00/+0.00 or any range is there like -0.05 to +0.05 or ......etc?

Apotex,

1 7181

using gradient pressure in gas chromatography are not ?using gradient pressure why

Reliance,

3442

What is the difference between STANDARDIZATION and CALIBRATION of instrument like KF? why do we standardization of KF everyday? Why the KF factor being only 5.02 etc?

AlpaMed, Vergo pharma research,

5 30759

What is Formula of Potency calculation on Dried basis, As is basis& Anhydrous basis.

Laurus, Teva API,

11 86687

Why base line not start from zero in GC Chromatography analysis.

Orchid,

1 6990

Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

Apex Encon Projects Private Limited, Cipla,

2655

can i use hplc detector to uplc and why?

Mylan, SGS,

2350

what is the maximum flow rate in prep hplc

Meril Life Science,

1 4072

how will you do the prep for unstable componds?

AMRI, CTX Life Sciences, Piramal Healthcare,

2070

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Un-Answered Questions { Analytical Chemistry }

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

2349

why digestion require in icpms?

830

HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.

2310

if instrument calibration fails then what require to do?

1021

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

845

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

934

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

2451

sop of a uv visible spectrophotometer double beam elico model

5990

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?

2787

What is gelatinization?

1676

how pda detector works over uv?

780

How do we fix the sample concentaryion in hplc method development. What is the basis?

1252

What is aggregate and fragments in SEC?

2159

How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

2631

Qc interview questions

1797

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