Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

Is it necessary to inject three replicate for accuracy in AMV.

Amoli Organics,

1 1615

Which is the best mobile phase to separate organic acids using C8 column. And how should the samples be prepared for hplc?

Biocon,

1 2238

What is the acceptance criteria for moisture balance when calibrated with sodium sulfate

723




why 0.1M OR 1M Perchloric acid standardisation done after 24 hours?

Cipla,

1 3685

What about karl fischer reaction mechanism ?

Mylan, Aurobindo,

2 4136

In IR spectra, generally a molecule vibrates without apply emr or ir light?

577

Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?

IDA,

579

How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

1162




What attracted you to analytical chemistry?

573

what is the difference b/w water content & moisture content

Dr Reddys,

2 2188

which procedure we follow if 6th month of accelerated sample fail?

Dr Reddys,

1 2172

What is third generation HPLC Columns?

Emcure,

732

what is third integration

Orchid,

733

Why sodium hydroxide used for maintain pH of phosphate buffer

Medicamen Biotech,

971

What is the deference between Residual solvents and OVI

RA Chem Pharma,

1 1285


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Un-Answered Questions { Analytical Chemistry }

What is diffrence between extractable volume and deliverable volume? Answer pls

927


mahagenco syllabus for the post of chemist

4931


in dissolution why pool sample needed? in which type of drug pool sample need?

1853


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]

1539


how will you do the prep for unstable componds?

689






WHAT IS DIFFERENCE B/W MALTINGRANG/DSC

1191


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

930


In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

1458


How much is the standard area for glc analysis

969


how to get accurate result for Residue on evaporation in purified water

308


some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?

1181


We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?

299


how can give the expiry period and restadardisation of volumetric solution

1322


What is method validation in quality control

2431


can i use hplc detector to uplc and why?

977