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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

how can delete the impurity in 1-(2:6 dichloro phenyl)-2-indolenone.and desolving the impurity in which solvent but does not desolve product in solvent.

1 2174

What is the pilot-plant in pharma sector.

Dr Reddys,

1 2398

What is blank titration of potentiometrically.

2 9311

process of Diclofenac sodium,IP.

1491

why we are using benzene, anyline in acetic anhdride assay titration method?

1397

which solution used for detecting factor of k.f.titroter except water

3 8165

in dissolution why pool sample needed? in which type of drug pool sample need?

Torrent Pharma,

2408

void volume is depending on column or not? if yes how will you depend?

Granules,

1 6385

what is difference between polarity and dipolemoment

Neuland,

3 8298

in determination of(acetone) moister content we are using methanol replaced by pyredine.what hapend in that reaction.

Glenmark, Neuland,

2 7724

what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

1940

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

APM, Graviti Pharmaceuticals, Ranbaxy,

1 9975

How do u differentiate primary

1 2206

WHEN AN UN KNOWN SAMPLE IS GIVEN TO U,HOW WILL U START THE ANALYSIS(ie FIRST WHICH TEST TO BE DONE,NEXT,THEN NEXT),HOW WILL U DECIDE WHICH TYPE OF ANALYSIS TO BE DONE FOR IT?

Aurobindo,

2 9479

WILL YOU DRY DST BEFORE FACTOR DETERMINATION BY USING KARL FISHER TITRATOR

Aurobindo, Meghmani Organics,

4 9891


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Un-Answered Questions { Analytical Chemistry }

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

2133


how we can identify the impurity is coming below loq at transfering site?

139


which situation gc hs and gc als require to use?

103


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

100


Which are the diffrent grades of api in pharma?

111






Which parameter require to do for analytical method equivalency?

97


why are measure gas flow " ml " in Gas chromatography

983


How you develop a method in HPLC?

1914


how you fix the limits of impurities?

147


If vendor having more imp than monograph then how to proceed? and how to set spec?

113


what is mean by extactable and leachable study?

236


What is the diffrence in japan mkt requirement in analytical method validation over US?

104


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

1234


What is column in chromatography?

1506


What is delay volume?

614