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 19735

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

GVK,

2 10118

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

2 8124




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

Cipla, Torrent Power, Cypher Solutions,

1 5062

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

JBCPL,

2 6761

Why KBr pellet is used in IR?

Glochem,

11 17747

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

9 8966

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

Orchid,

5 19733




Why Peak Purity is not determined in GC analysis?

GVK, GSFC,

1 3486

Why sodium lamp is used in polarimeter?

Aurobindo, Micro Labs,

1 9929

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,

895

What is the difference between Primay and Secondry Standard ?

Neuland, College School Exams Tests,

6 43370

priciple of gc & hplc? (properly describe)

Cadila, Reddy Labs, Cipla,

2 11249

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

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

1 3978

give tha clarity about peak purity concept

Aurobindo, Reliance Life Sciences,

3 7567


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Un-Answered Questions { Analytical Chemistry }

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

1004


WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

1292


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

824


In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

1890


what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

3003






what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

5678


Tell me something about Vitamin A test method by HPLC

1256


Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

1370


Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

168


What is viod volume and peak purity in HPLC?

1253


How to check hplc detecter sensitivity?

157


In dissolution of tablets/capsules elaborate the Dissolution limit 20.0% to 60% Q in 30 minutes.

653


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

872


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

780


What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

1212