Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is the moisture content of Disodium hydrogen tartrate. how it can be calculted. as 16.5%

1 6120

In Karl Fischer titration,What is the situation if the material tested is only soluble in water,and not soluble in the common solvents used such as methanol ?? [e.g. Iron III Hydroxide polymaltose]

1442

sop of a uv visible spectrophotometer double beam elico model

Sun Pharma,

4073




why does the result variation in hplc and gc with same sample ?

Matrix,

4 7828

How will you select mobile phase in HPLC Method Development

3 13369

how to regulate noise in hplc ?

2 6565

why results are variation in same samples analysis in gc and hplc ?

2 6036

why base line not start from zoro in GC Chromatograme.

Merck,

1 5826




What is cleaning validation of rinse and swabe and its limit with caculation formula.

5 6552

what is the difference between c-8 and c-18 column

7 15324

why deutiriated chloroform used in NMR for sample prepration. what reaction takes place.give reasons

1 5149

how do u optimise hplc method

1 5429

How to calculate %w/w and %v/v of a component(or solvent)by NMR

ACME, Vimta Labs,

1 5709

How to prepare 10% HCl from 36.5% HCl solution.

Dr Reddys,

5 95103

How to prepare 50 ppm ammonia solution form 25% ammonia solution?

Cadila, IIT,

8 19896


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Un-Answered Questions { Analytical Chemistry }

what is the origin to prepare standard operating procedure

914


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

2145


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.

1036


What are the primary considerations in extractables and Leachables ?

954


what is %labelled amount in content uniformity of dosage unit and its calculation?

3512






what is the identification test of volatile substance? what is volatile compound?

931


What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

5125


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

1040


why are measure gas flow " ml " in Gas chromatography

290


How we can determine water content in piperazine

843


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

928


process of Diclofenac sodium,IP.

829


IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?

1187


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

978


Colorimtry

171