Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

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

Amoli Organics,

1 1432

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

Biocon,

1 2014

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

616




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

Cipla,

1 3324

What about karl fischer reaction mechanism ?

Mylan, Aurobindo,

1 3836

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

507

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

IDA,

512

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

928




What attracted you to analytical chemistry?

510

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

Dr Reddys,

2 1901

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

Dr Reddys,

1 1950

What is third generation HPLC Columns?

Emcure,

639

what is third integration

Orchid,

660

Why sodium hydroxide used for maintain pH of phosphate buffer

Medicamen Biotech,

860

What is the deference between Residual solvents and OVI

RA Chem Pharma,

1 1048


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Un-Answered Questions { Analytical Chemistry }

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

645


Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

1268


what is the origin to prepare standard operating procedure

914


what type of questions asked on analytical balance and also give answers................all pharma companies?

5715


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.

824






Qc interview questions

280


what is procedure of actual procedure for registration of drug?

570


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

931


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

507




996


4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

1222


Why we check moisture,ash & AIA in product

423


In Dissolution Test why limit is define Q+5% what is the role of +5%.

1339


In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

921


how will you do the prep for unstable componds?

619