Analytical Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

How to calculate the signal to noise ratio.

Rakshit Drugs,

1 7606

Why pH range is 1-14 nt more than 14???

IPCA, Lincoln Pharmaceuticals,

3 9226

Weight balance variation limit during analysis

Amneal Pharmaceuticals,

7 10620

How to calculate lamp energy in hplc?

1 4062

Difference between related substances & impurities

Biocon,

2 18486

Polarized meter calibration, 1. Method name? 2. Which solution use? 3.why?

1 3863

Basic principle of ESI?

Cipla, GVK,

2207

What is the meaning of Base deactivated vials

Sun Pharma,

1 3724

What is definition of RRT and what is the difference between RT and RRT in HPLC

2 10779

What is the definition of RRF

2 6927

In GC Why does retention time decrease when temperature increases? Also how does a change in temperature effect selectivity?

Gland Pharma,

1 4086

why we use 0.1% acetone in gradient calibration of HPLC?

Cipla, Dr Reddys, FDC,

3 14014

What is difference between assay by Hplc and uv

Aizant, Fredun Pharmaceuticals, Hetero, Marksans Pharma,

2 10626

why we use actone for Gpv test in hplc calibration

1 10388

How to standardization of 1N H2SO4?

GNFC, Macleods,

1 8142

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Un-Answered Questions { Analytical Chemistry }

how you determine moist.of NaOH sol or NaOH flacks

2263

Why to use propyl paraben in HPLC gradient calibration

7590

What is dose dumping? why require to do?

1042

Why irmoisture balance is used for corrugated box moisture testing

2451

Did anybody have method for acetyl cysteine effervescnce tablet

2298

In performance Check of GC Why Hexadecane Peak is Considered

3104

could negative ions be produced by bombardment process in mass spectrometry?

1822

Why six unit used for precision?

1403

for inorganic molecules require to do RS, Assay and disso?

774

Why are use silicon oil mr?

1256

how will you do the prep for unstable componds?

2067

What is the requirement for brazil in the analytical method vslidation comparr to ich?

851

if you have given a blank water how you analyse by general analytical techniques?

2083

if peak get problamatic then what require to do?

860

if instrument calibration fails then what require to do?

1017

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