Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

perchloric acid&glacal acetic acid both are acids but reaction is complete in volumetric titrations.how?

1 7566

what is the cleaning validation?

BioPlus,

1 6847

acetic acid is weak acid & perchloric acid is strong acid.but how perchloric acid is soluble in acetic acid

AVT, Hetero,

3 7393




What is polymorphism?which type of compounds exhibits polymorphism?

Torrent Pharma,

2 6302

what is the basic principle of conductivity meter

Hetero,

4 22430

Column selection in HPLC method development?

1 8899

How to prepare ppm solution of Nacl form its salt?

5 50454

what is mean by assay?

6 14816




why we are doing seal wash and needle wash?

2 10336

which functional group we can detect in IR?

2 7942

what is mean by UOD?

2 6584

what is mean by content uniformity?

5 5957

today i am doing calibration of HPLC. when i inject the blank it was going on -ve.(bleow then zero) why?

3 6891

what are the sources in ELSD,PDA, RI and UV Detectors?

1 5816

in karl fischer reagent which solvent is used for dissolving iodine sulphur dioxide and imidazole

Strides,

4 7005


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Un-Answered Questions { Analytical Chemistry }

how to calculate corelation coefficient in G.C Calibration? what is the calculation part?

912


what is third integration

660


what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?

2246


mahagenco syllabus for the post of chemist

4851


how to select short coloum and long coloumn for new molecule

953






How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

1782


why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

6657


What is the purpose of octyl silane columns?

2510


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

843


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

1236


why 6 tablets use for dissolution

1807


Why potassium dichromate was using in Uv calibration?

188


In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

921


What is the main difference between ODS1 and ODS2 Hplc column.

1624


What is the meaning of Base deactivated vials

959