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 6936

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

1130

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

CMET,

1266




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

Piramal Healthcare,

5 9043

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

Reddy Labs,

3 6687

why we use kbr as constant in the FTIR ?

4 6484

how much wave length of Soduim vapour lamp used in polarimeter

Reddy Labs, Torrent Pharma,

2 7615

what is the principle involved in turbidometry and nephelometry ?

Graviti Pharmaceuticals,

2522




What is basic difference between method validation,process validation

Atul,

1 6497

why sucrose used in polarimeter calibration?

Reddy Labs, Sugar Factory,

2 8586

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 16698

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

Reddy Labs, Torrent Pharma,

5 9606

define polar and non polar solvent

2 9404

Why we use 100 RPM in friability test

IPCA,

1 4155

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

Alembic,

2034


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Un-Answered Questions { Analytical Chemistry }

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.

811


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

1142


EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

1353


Why to use propyl paraben in HPLC gradient calibration

716


For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?

905






What is the purpose of octyl silane columns?

2712


how can I make the copper get white bye any salt or acit?

1006


what is the structure of DOWEX-50

3740


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

2133


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

1437


1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

282


Explain the relations between number of carbon atoms in alkanes and retention time ?

675


what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?

7152


function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

1228


In BP2013, Loperamid HCl monograph. Assay by titration with 0.1N sodium hydroxide using hydrocloric acid 0.01N and reading the volume added between the 2 points of inflexion. I have a question that if the diluent solvent is ethanol is certainly consumed a amount of volume of titrant, so this volume must be eliminated on the result calculation or not apart from first point which is subtracted above.

1642