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 6550

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

1007

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

CMET,

1139




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

Piramal Healthcare,

5 8389

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

Reddy Labs,

3 6369

why we use kbr as constant in the FTIR ?

4 6124

how much wave length of Soduim vapour lamp used in polarimeter

Reddy Labs, Torrent Pharma,

2 7293

what is the principle involved in turbidometry and nephelometry ?

Graviti Pharmaceuticals,

2162




What is basic difference between method validation,process validation

Atul,

1 5874

why sucrose used in polarimeter calibration?

Reddy Labs, Sugar Factory,

2 8174

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 15123

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

Reddy Labs, Torrent Pharma,

5 9178

define polar and non polar solvent

2 8717

Why we use 100 RPM in friability test

IPCA,

1 3613

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

Alembic,

1890


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Un-Answered Questions { Analytical Chemistry }

How to estimate potassium?

121


Did anybody have method for acetyl cysteine effervescnce tablet

819


in dissolution why pool sample needed? in which type of drug pool sample need?

1747


what is partion and column chromatography

964


what is procedure of actual procedure for registration of drug?

543






How to check hplc detecter sensitivity?

158


Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

1241


Basic principle of ESI?

765


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

537


How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?

2485


why equlirium conatant of water have 14 value

841


how does h2so4 prevent oxidation of mohr salt before it is titrated?

712


How can the GC or HPLC method is selected to determine the impurity profile in drug product?

5247


why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

884


What is method validation in quality control

2299