Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is difference between Potency & purity

3 10502

how to hplc calibrated

Glochem, Dr Reddys,

4 43298

state the principle of gas chromatography?

5 8493




Why noise test is performed at 254 nm in calibration of HPLC system?

4 12366

some compound havving uv region but not give much more response during hplc analysis

2 4470

I have got selected for Aurobindo Pharma AR&D, HR person is asking me to sign in agreement. can I join?

Aurobindo,

19 28124

Why sulfuric acid is used in sulphated ash / residue on ignition test.

Dr Reddys, Micro Labs, Wings Customer Care, Samrudh, Watson Pharmaceuticals, HPLC, CS Pharmaceuticals, GVK,

8 50724

what are the basic requirement for the WHO audit?

BioPlus,

1 6673




What is the thickness of polystyrene film?

Pharmaffiliates Analytics and Synthetics,

8 11729

During Validation study, Recovery is passing at all levels but Linearity is failing. Justify?

Torrent Pharma, Mylan,

1 1652

What is Stray light ? & what is the IMP of this

2 7196

how can I make the copper get white bye any salt or acit?

984

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

957

why we use only sucrose in the calibration of polarimeter?

Kilitch,

6 15906

What is the Deference between Bulk density & Tap density ?

Reddy Labs, Hikma Pharmaceuticals, Neuland,

2 19429


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Un-Answered Questions { Analytical Chemistry }

How much is the standard area for glc analysis

933


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?

2449


what is procedure of actual procedure for registration of drug?

629


all types of questions asked at the cipla interview

3344


what is the origin to prepare standard operating procedure

963






can i use hplc detector to uplc and why?

943


How would you decide dissolution medium for NCE compound of class I drug

727


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

1301


why disodium tartarate used in karl-fischer instrument ?.

717


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

958


mahagenco syllabus for the post of chemist

4904


What is intact assay method development.....?

1119


why does used dry caffien in HPLC calibration?

587


How to start the dissolution development for unknown tab?

306


Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

657