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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 8450

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

 1743

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

CMET,

1867

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

Piramal Healthcare,

5 12211

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

Reddy Labs,

3 8427

why we use kbr as constant in the FTIR ?

 4 8444

how much wave length of Soduim vapour lamp used in polarimeter

Reddy Labs, Torrent Pharma,

2 9160

what is the principle involved in turbidometry and nephelometry ?

Graviti Pharmaceuticals,

3404

What is basic difference between method validation,process validation

Atul,

1 8197

why sucrose used in polarimeter calibration?

Reddy Labs, Sugar Factory,

2 10388

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 19972

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

Reddy Labs, Torrent Pharma,

5 11956

define polar and non polar solvent

2 11490

Why we use 100 RPM in friability test

IPCA,

1 6517

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

Alembic,

2715

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Un-Answered Questions { Analytical Chemistry }

Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

2107

give clarity of linearity and range in method validation

1665

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

1137

What is mean by PDR?

108

if tech transfer fails whay require to do?

127




what type of question will ask in the interview of lab chemist.

2708

What is the principle of Thermal conductivity detector and FID?

2084

if instrument calibration fails then what require to do?

143

UV and PDA detector, which have less signal to noise ratio?

461

WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

1810

What is vial equlibriation in Gc?

135

using gradient pressure in gas chromatography are not ?using gradient pressure why

2779

what is biorelivent dissolution media?

99

what is the structure of DOWEX-50

4679

Why six unit used for precision?

583

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