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 8931

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

1993

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

CMET,

2151

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

Piramal Healthcare,

5 13186

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

Reddy Labs,

3 9086

why we use kbr as constant in the FTIR ?

4 9125

how much wave length of Soduim vapour lamp used in polarimeter

Reddy Labs, Torrent Pharma,

2 9678

what is the principle involved in turbidometry and nephelometry ?

Graviti Pharmaceuticals,

3642

What is basic difference between method validation,process validation

Atul,

1 8586

why sucrose used in polarimeter calibration?

Reddy Labs, Sugar Factory,

2 10900

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 20699

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

Reddy Labs, Torrent Pharma,

5 12768

define polar and non polar solvent

2 12059

Why we use 100 RPM in friability test

IPCA,

1 7117

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

Alembic,

2967


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Un-Answered Questions { Analytical Chemistry }

analytical method validation require to with respect to release specification or shelf life specification?

286


if content uniformity passing but dissolution varrying then what is next step?

394


why holium oxide prepared in 10% HCLO4 SOLUTION

1001


CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

711


how the compound separate in coulunm,explain

1950






pharma industries oriented

1694


what is mean by ambient temperature?

353


Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

1469


what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

2233


iam usig ph buffers merk. manually how to prepare ?

1786


WHY given much noise PDA dector then VWD Dector

1509


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

1917


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

1993


Which parameter require to do for analytical method equivalency?

328


How you develop a method in HPLC?

2085