Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

One Raw material failed assay test is there any chance for failing purity of that material ?

Mylan,

7 7926

What are the differences between GC and HPLC?

1 11076

Why do we need GC instead of HPLC? or Why do we need HPLC instead of GC?

4 8638




What is linearity in HPLC and how will you test?

1 15092

what is the difference between polarimeter lamp and ir lamp

1994

What is the difference of time between two consecutive injections in HPLC?

Nectar Lifesciences,

2 7494

what is difference between IR lamp and polarimeter lamp

Raks Pharma,

1 5355

Why dissolution test is not performed in all of the products

SDD, Biocon,

1133




why we need to do karl ficher fector ?

Reliance,

2 8652

Why we are use 0.005M Sulphuric acid, in control of absorbance performance test UV Spectrophotometer calibration

Reddy Labs, Cipla,

2 11211

How much sample concentration should i inject against diluted standard in related substances for drug product in hplc analysis

Apotex,

1 1858

how to prepare 25 ppm acetone. explian with formula

4 10658

why sucrose not used in polarimeter calibration?

Cipla,

2 7313

What is the diffeence between assay and uniformity of content

2 6560

why ur using toulene in hexane in u.v calibration?

Cipla, Biological.e.limited,

3 21644


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Un-Answered Questions { Analytical Chemistry }

What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

5577


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

222


what is the difference between potentiometric titration and karl fischer titration?

952


How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

268


why we do the calibration of limit of stry light in hplc & uv

1342






explain 5 components of gas chromatography ?

601


What is third generation HPLC Columns?

637


What is the purpose of octyl silane columns?

2505


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

5712


How can I develope method of dissolution by HPLC OR UV

923


why we use sodium salicylate in uv light calibration at TLC chamber

4757


we are performed SOR for a particular product the limit is -6 to -10.We face particular bathes it is not meeting the specification.we performed diffrent instrument diffrent analyst we are getting diffrent diffrent results.solvent is dimethyl sulfoxide what could be the reasion

433


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

625


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

2146


In dissolution of tablets/capsules elaborate the Dissolution limit 20.0% to 60% Q in 30 minutes.

678