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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

Is it necessary to inject three replicate for accuracy in AMV.

Amoli Organics,

1 3104

Which is the best mobile phase to separate organic acids using C8 column. And how should the samples be prepared for hplc?

Biocon,

1 4094

What is the acceptance criteria for moisture balance when calibrated with sodium sulfate

 1540

why 0.1M OR 1M Perchloric acid standardisation done after 24 hours?

Cipla,

1 5746

What about karl fischer reaction mechanism ?

Aurobindo, Mylan,

2 6176

In IR spectra, generally a molecule vibrates without apply emr or ir light?

 1426

Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?

IDA,

1367

How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

 2518

What attracted you to analytical chemistry?

 1333

what is the difference b/w water content & moisture content

Dr Reddys,

3 5313

which procedure we follow if 6th month of accelerated sample fail?

Dr Reddys,

1 3837

What is third generation HPLC Columns?

Emcure,

1495

what is third integration

Orchid,

1483

Why sodium hydroxide used for maintain pH of phosphate buffer

Medicamen Biotech,

1819

What is the deference between Residual solvents and OVI

RA Chem Pharma,

1 3274

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Un-Answered Questions { Analytical Chemistry }

AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

1598

how will you do the prep for unstable componds?

1430

In Dissolution Test why limit is define Q+5% what is the role of +5%.

2562

WHAT IS THE USE OF STARTER ?????????

1897

what is mean by ambient temperature?

335




why require to add enzymes in capsules dissolution only? is it require to tablet also?

254

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

325

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

670

iam usig ph buffers merk. manually how to prepare ?

1771

how you fix the limits of impurities?

367

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

1996

cefoperozone and sulbactam inj. hplc test method

2117

Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

1685

Why we check moisture,ash & AIA in product

1391

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

1740

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