Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

Why potassium hydrogen pthalate is used for perchloric acid And naoh. Why it is used for both acid and base

Vijayasri Chemicals,

6 21727

what are the normalisation, internal standard and external standerd methods in HPLC.

GVK,

2 10968

is ther any guidline is available for limt of peak fronting.and what is the limt of peak fronting.

2 8812




how would you determine the acceptance criteria for cleaning validationof product A for product B?

Cipla, Torrent Power, Cypher Solutions,

1 5395

How can we konw that the HPLC column is endcapped? Is it possible to identify visually without COA?

JBCPL,

2 7352

Why KBr pellet is used in IR?

Glochem,

11 18988

IN DISSOLUTION S1 STAGE 1 BOWL GOT 52%(Q POINT IS 80%)WHAT WE HAVE DO

9 9832

what is the meaning of PURITY AND POTENCY .what is the difference between PURITY and POTENCY

Orchid,

5 21288




Why Peak Purity is not determined in GC analysis?

GVK, GSFC,

1 4044

Why sodium lamp is used in polarimeter?

Aurobindo, Micro Labs, Mylan,

1 11338

HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.

Bank of Baroda,

1087

What is the difference between Primay and Secondry Standard ?

Neuland, College School Exams Tests,

6 45363

priciple of gc & hplc? (properly describe)

Cadila, Reddy Labs, Cipla,

2 12092

why we have to store the pH electrode in 4.01 buffer ?

Aurobindo, Cipla, SGS, Indoco Remedies, BioSynth, BioMax,

1 4798

give tha clarity about peak purity concept

Aurobindo, Reliance Life Sciences,

3 8079


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Un-Answered Questions { Analytical Chemistry }

are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????

795


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

1036


why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?

1407


What are the primary considerations in extractables and Leachables ?

1084


what is procedure of actual procedure for registration of drug?

731






Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

1747


What is the calibration of uv process and preparation

786


What is the importance of rrf in rs by HPLC?

3


in sampling of raw material which side is pasted sampled labels

250


What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

6303


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

3788


Tell me about analytical method validation in QC

2308


What is the purpose of octyl silane columns?

2834


what is partion and column chromatography

1113


For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?

207