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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?

Elder, Vamsi Labs, Cipla,

1 6768

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

 1081

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

CMET,

1211



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

Piramal Healthcare,

5 8762

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

Reddy Labs,

3 6551

why we use kbr as constant in the FTIR ?

 4 6336

how much wave length of Soduim vapour lamp used in polarimeter

Reddy Labs, Torrent Pharma,

2 7492

what is the principle involved in turbidometry and nephelometry ?

Graviti Pharmaceuticals,

2376



What is basic difference between method validation,process validation

Atul,

1 6227

why sucrose used in polarimeter calibration?

Reddy Labs, Sugar Factory,

2 8447

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?

IPCA, ABC, Alembic,

1 16132

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

Reddy Labs, Torrent Pharma,

5 9437

define polar and non polar solvent

2 9141

Why we use 100 RPM in friability test

IPCA,

1 3941

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

Alembic,

1964

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Un-Answered Questions { Analytical Chemistry }

what is partion and column chromatography

1025

How to define samples weight in moisture content

110

What is third generation HPLC Columns?

689

What should be the level/ Percentage of Arsenic in Arsenic free zinc.

1012

Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

1406




Why dissolution test is not performed in all of the products

1173

acceptance criteria for lod & loq by standard deviation of response and slope??

1167

cefoperozone and sulbactam inj. hplc test method

1248

What is column in chromatography?

777

WHAT IS THE USE OF STARTER ?????????

1071

What is intact assay method development.....?

1102

IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?

1208

what is separation techniques.

1322

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

1257

please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

308

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