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

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

Cipla, Elder, Vamsi Labs,

1 9797

How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

2546

Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

CMET,

2728

why are not used methonol in kf titrator to find out water content in ketones?

Piramal Healthcare,

5 15322

Why are EDTA used to etimation of Ca,Mg etc, in Water analysis?

Reddy Labs,

3 10536

why we use kbr as constant in the FTIR ?

4 10936

how much wave length of Soduim vapour lamp used in polarimeter

Reddy Labs, Torrent Pharma,

2 10735

what is the principle involved in turbidometry and nephelometry ?

Graviti Pharmaceuticals,

4158

What is basic difference between method validation,process validation

Atul,

1 9447

why sucrose used in polarimeter calibration?

Reddy Labs, Sugar Factory,

2 11911

why we are using 6 dosage units in dissolution, and why we are using 6 tablets in disintegation test.is there any scientific reason beyond 6?

ABC, Alembic, IPCA,

1 22196

IN DISSOLUTION WE ARE USING A LETTER 'Q' WHAT IS MENT BY Q

Reddy Labs, Torrent Pharma,

5 14543

define polar and non polar solvent

2 13143

Why we use 100 RPM in friability test

IPCA,

1 8074

In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

Alembic,

3486

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Un-Answered Questions { Analytical Chemistry }

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

3103

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

782

WHY pKa value is more important than pH value of the mobile phase in HPLC?

1768

Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

2724

what is biorelivent dissolution media?

807

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

3032

What is dose dumping? why require to do?

951

which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

2161

how to develop the icp ms method? Application of icp ms?

810

when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.

2040

i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

2734

In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

925

What is stray light in uv what are units for stray light

1652

why cone formation during dissolution?

782

what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?

2293

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