Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What are the factors effect peak shape in HPLC ?

College School Exams Tests,

2 4973

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

College School Exams Tests,

1620

explain 5 components of gas chromatography ?

College School Exams Tests, Nucon,

1 1828

Describe 5 components of SFC ?

College School Exams Tests,

1 2219

How we can determine water content in piperazine

Cipla, GVK,

1 2025

Difference between hlaf and rlaf

Sharon,

1641

What is oot in Stability analysis? (example)

Indoco Remedies,

2 3752

How to choose concentration of LOQ solutions for RS analysis? Example.

Abbott, Indoco Remedies,

1 2525

What is the main difference between ODS1 and ODS2 Hplc column.

Indoco Remedies,

4461

How to select Sample concentration in RS analysis?example.

1 3143

What is Diffidence between Normal Detector and PDA Detector?

Aurobindo,

2 5584

If we have a kc is1*10^8 and the .kp 2*10^5 of reaction A------->B C------->D what is the volume of C?

1577

What is linearity in hplc and how to calibration

Aurobindo,

1 3581

Why void volume(time in seconds) 1 in hplc system suitability

1 4357

what is role of pH in mobile phase

Cipla, Dhanuka Laboratories,

3 8249


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

what is classification of elemental impurities? what is risk assement in elemental impurities?

330


in monograph 7 imp are there but in vendor showing 5 imp do not req to include 2 imp for that what will be justification?

260


in sampling of raw material which side is pasted sampled labels

1242


why holium oxide prepared in 10% HCLO4 SOLUTION

988


how to develop the icp ms method? Application of icp ms?

304






How we can identify process related and degradation impurity in single method with short period?

321


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

1620


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

1303


UV and PDA detector, which have less signal to noise ratio?

636


what are the guidelines for analytical method validations?

586


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?

1235


what is the purge flow & how to calculate

1968


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

2211


WHY given much noise PDA dector then VWD Dector

1494


Why use only methanol,used determinationof moisture content not use other solvents

868