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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

how to calibrate hplc & gc

Cipla,

3513

Explain in detail what are the procedure and calculations involved for accuracy (%Recovery)in method validation?

Vimta Labs,

1 5099

WHAT IS DIFFERENCE BETWEEN RRT AND RRF IN HPLC

Cadila,

2 44711

what is mean by Q in S1 and S2

Micro Labs,

3 8402

what is the difference between mcg and ppm?

5 24195

WHAT IS THE DIFFERENT BETWEEN PURITY, POTENCY AND ASSAY

Glochem, Hetero,

6 50723

How we can perform Linearity study for validation by HPLC with very low conc of sample

1 5777

principle of FTIR

Biocon, Macleods,

2 15679

what is separation techniques.

Glenmark,

1 2024

what is the difference b/w repeatability nd reproducibility ?

Aptuit Laurus,

1 8378

why using factor 1.00639 in burette calibration of kf

Cipla,

1 6767

what type of questions asked on analytical balance and also give answers................all pharma companies?

Sun Pharma,

8715

Why KBr is used in FTIR ?

6 11914

How to study genotoxicity of impurities in API?

NCL,

2 3991

What is the difference between chiral cel OD-H & OD-RH ?

Aptuit Laurus,

3 8738


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Un-Answered Questions { Analytical Chemistry }

In Assy by potentio metry titration method how select MET U ,DET U, SET U,

609


What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

7412


why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?

1832


What is the use of tlc and hplc? And when and where use?

257


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

944








1400


For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?

554


how you determine moist.of NaOH sol or NaOH flacks

1397


what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?

2665


What is importance of pH in the Heavy metal test and How it effect on the test results?

1325


how to get accurate result for Residue on evaporation in purified water

663


What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

735


How can I develope method of dissolution by HPLC OR UV

1386


what is the structure of DOWEX-50

4344


how to select short coloum and long coloumn for new molecule

1401