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 20552

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

GVK,

2 10457

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

2 8405




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

Cipla, Torrent Power, Cypher Solutions,

1 5206

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

JBCPL,

2 7056

Why KBr pellet is used in IR?

Glochem,

11 18186

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

9 9267

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

Orchid,

5 20323




Why Peak Purity is not determined in GC analysis?

GVK, GSFC,

1 3710

Why sodium lamp is used in polarimeter?

Aurobindo, Micro Labs, Mylan,

1 10518

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,

960

What is the difference between Primay and Secondry Standard ?

Neuland, College School Exams Tests,

6 44319

priciple of gc & hplc? (properly describe)

Cadila, Reddy Labs, Cipla,

2 11669

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

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

1 4318

give tha clarity about peak purity concept

Aurobindo, Reliance Life Sciences,

3 7813


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Un-Answered Questions { Analytical Chemistry }

Why we check moisture,ash & AIA in product

456


why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space

916


what type of question will ask in the interview of lab chemist.

2077


what is the principle involved in turbidometry and nephelometry ?

2376




1027






WHAT IS DIFFERENCE B/W MALTINGRANG/DSC

1140


For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

2414


all types of questions asked at the cipla interview

3328


what is peak purity and its formula

181


What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

283


in dissolution in one tablets two molecule one is losartan & second is HCTZ losartam is complies in s1 stage & hctz is complies in s2 stage then how to report result losartan s1 stage result or losartan s2 stage result

897


1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.

1105


How will u perform degradation study in detectors other thann PDA in HPLC Methodology

1219


iam usig ph buffers merk. manually how to prepare ?

970


Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

1406