Analytical Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

when we use pda detector in hplc instead of uv detector

Hetero,

6 25611

why we use holmiumperchlorate in calibrating uv

Aurobindo, DRL, MSN Pharma,

4 18659

why chiral compounds will rotate the plane polarized light in SoR.

GVK,

4 15465

Why sulpuric acid only used to ROI but not used nitric acid and some other acids?

Cadila, Laurus, Ranbaxy,

7 33006

how we do assay of urea, ammonium sulpate, ammonium nitro pospate etc

Alembic,

1 3962

what is difference of uv and pda

Akums, MSN, MSN Pharma, Shilpa Medicare,

13 70973

how can you do the analysis of compound given to u by hplc

2 8711

What is calibration procedure of gredient HPLC pump

4 25818

How to determine water content of thioanisole? which interfere by KF titration?

1 7837

what is dissolution

DRL,

6 28662

What is colimn selection Criteria in HPLC analysis?

4 16124

How to select buffer for HPLC mobile phase

Cadila, Cipla, Lupin,

4 23348

What is primary & Secondary Standard ? Give Example

Cipla, Lupin,

17 167614

Which buffer is used for LC/MS mobile phase & at What Conc.

3 11566

How we fix the validity period of a Normal solution and re-standardization due date

3 9480

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Un-Answered Questions { Analytical Chemistry }

in which situation require to use paddle and basket?

794

WHY given much noise PDA dector then VWD Dector

2145

could negative ions be produced by bombardment process in mass spectrometry?

1822

Please give idea about method development for cleaning method and how maco level establish

794

How require to perform linearity as per ANVISA? What are the acceptance criteria?

1400

What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

2756

what are the guidelines for analytical method validations?

1150

iam usig ph buffers merk. manually how to prepare ?

2327

How to fix the sample conc. in Related substances test by HPLC?

1145

What is related substance by HPLC impurity limits as per USP?

1154

what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

9298

What is rs test why we are performing rs test?

1907

How to know the estimated LOQ concentration in ppm

1277

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?

2356

how pda detector works over uv?

780

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