Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

WHY POTASSIUM DICROMATE USING IN UV CALIBRATION

Apotex, Micro Labs, Rene,

1 12304

What is the Baseline in HPLC.

Teva API,

2 8777

Why dst is used in kf for factor determination less than 1

Reddy Labs, Sun Pharma,

4 11840




why should we calibrate pH meter with 4,9.2 and 7.4 buffers particularly?

Celon Labs,

5 8911

why inject diluted standard solution in related substance analysis by HPLC?

Sun Pharma,

2 10910

What is the Calcultion of S/N Ratio.

2 7743

Principle of HPLC in one sentance

Syngene,

8 11291

Why are using in Hi,zero air, Ni gass are used GC

Aurobindo, ELBS, Vimta Labs,

5 8818




what is the balance drift?

Torrent Pharma,

2 8220

Retention time & Relative Retention time Definition & between difference? How to Calculate response factor(RF) & relative response factor(RRF)?

MSN Pharma, Titan,

3 13832

why are using toluene in uv calibraion in resolution performance

MSN Pharma,

2 7908

why we make titiration of Iron with EDTA ?

Cipla, Sitec Labs,

1 6404

What is difference b/w IR&NIR

Apotex,

1 3527

Why does boiler drum ph maintain from 9.5 to 10.2

1 4692

What is the definition of water content or moisture content,what is the procedure going on w.c amalysis?

Cipla, KIYI,

1 7490


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Un-Answered Questions { Analytical Chemistry }

Why perchloric acid used for potentiometric titration

1287


While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

985


What is the difference between spectro meter and spectro photo meter?

8437


if you have given a blank water how you analyse by general analytical techniques?

711


What is aggregate and fragments in SEC?

649






How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.

1016


mode of absorption in alimentary canal?

1154


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

1419


sop of a uv visible spectrophotometer double beam elico model

4148


In IR spectra, generally a molecule vibrates without apply emr or ir light?

543


How to do regeneration of Metacarb Pb plus column?

1258


Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?

551


What is method validation in quality control

2396


In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

1407


Why potassium dichromate is used in calibration of uv?

282