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

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

Watson Pharmaceuticals,

1 6143

we run the same sample in same method in different flow rates in HPLC,any changes in sample analysis?

2 7623

For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

4135

For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?

2357

if the flow rate is increases then any changes in retention time in hplc

1 8101

Whatn is HPLC

HPLC, Jubilant, Orchid,

1 7553

what is the limit of Correlation for IR test compare to the standard and test

Nakoda Chemicals,

3 10552

IS THERE ANYWHERE MENTION THAT THE RE PROCESS BATCH REQUIRE TO KEPT STABILITY STYDY

Nakoda Chemicals,

2 6710

why holmium perchloate solution in Uv calibration

Alembic,

2 10820

why do we have to used saturated ammonia in TLC

Cipla, IPCL, Mylan,

3 11886

stability study is going on up to 3years for famotidine-USP but the pharmacopeia is revised and tlc test is replaced with hplc test. At the 4th year frequency the product is failed in hplc test .how can i assain the expiry or retest date and can i stop or continue the programme?

Nakoda Chemicals,

2 6729

how to correct peak when peak comes broader in shape? How to do calibration of HPLC?

Mankind,

2 8472

HOW TO CALIBRATE HPLC OVEN

Mylan,

1 6814

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

2329

which light is used in FT-IR spectroscopy

Hetero,

6 18740

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Un-Answered Questions { Analytical Chemistry }

in which situation ion pair agent require to use?

801

Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

2746

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

2615

What is split ratio in Gc? Splitless? how requirr to select?

943

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

946

WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?

1251

in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?

809

What is the difference between purge septum flow and column flow in gas chromatography?

2648

in which situation require to use paddle and basket?

796

process of Diclofenac sodium,IP.

2286

is it nessesary to do solution stability for 7 days?

821

Why do we use KMnO4 in the test of control of obsorbance ? and why do we take specific quantity i.e 57-63mg?

2893

Many times I don't got a caffeine peak in calibration of hplc using guard column ❓

1877

what is mean by dissolution biowaiver study?

997

from where i get mortar pastle for glass bottle crush? it's required for testing of it?

2328

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