Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is mean by peak tailing in case of GC?

5 10817

why we are taking 85 ml of concentrated HCl to prepare 1N Solution

SG Phyto Pharma,

4 102844

What is diffrence between residue on ignition and sulphated ash?

Zydus Cadila, Cadila, Piramal Healthcare, Panas Pharmaceuticals, Remidex, Aurobindo, Dr Reddys, Mylan,

37 147843




how can standardized of HCl of 0.1 N

7 38173

What is the difference b/w OVI Solvents and Residual Solvents in case of Gas Chromatogaphy and What is its Detection Limit?

Jubilant Organosys, Suven Life Sciences,

8 29413

what is the diffrence between absorbance and absorption in the beer,s lamber formula ?

2 8048

one gram of which below elements has the most atoms in its? a) H b) D C)T D) He

4 3809

0.1 atom gram of the unknown element( X)reacts with 2.4 gram of O2 to produce the oxid product . can you tell us, what is the oxid formula ? a) XO b)X2O3 c)XO2 D) X2O4

Ajanta,

1 1953




Why we use Uracil for HPLC calibration in Detector wave ength accuracy test?

5 19281

k.f principle in finding out moisture content

1 10900

What is difference btw UV detector & RID detector

4 14300

What's the importance of these procedures?

1 3075

How precise should be the linearity in HPLC method validation?

Glenmark,

3 7429

what should be the precision during technology transfer?

Glenmark,

3 5891

why we use vanillin in melting range calibration

3 9538


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Un-Answered Questions { Analytical Chemistry }

What is the Formula for coreletion coefficient in plhplc calibration

5


Why we check moisture,ash & AIA in product

497


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

5433


what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

731


2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

904






what is the purge flow & how to calculate

1205


why we are using benzene, anyline in acetic anhdride assay titration method?

846


what is peak purity and its formula

236


USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...

587


While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

1033


Why potassium dichromate was using in Uv calibration?

515


sop of a uv visible spectrophotometer double beam elico model

4200


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

1403


how you determine moist.of NaOH sol or NaOH flacks

1060


all types of questions asked at the cipla interview

3377