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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

How can you prepare 0.1% Phosphate buffer solution?

6 14792

wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language

Police Constable,

1 3481

difference between quality and quantity

3 13041

why we get only one peak in assay by hplc but in rs by hplc get more peaks

MSN Pharma,

1 11571

In performance Check of GC Why Hexadecane Peak is Considered 

Asian Paints, MSN Pharma,

3107

Is it required to inject 6 injections for % RSD of a system suitability in lc or gc

Raks Pharma,

3 13895

Why do we use KCl ,K2Cr207,Toulene & Halonium oxide for the caliberation of UV

Apotex,

2 16517

what is rt and rrt? how we find rrt? relation between rt and rrt/

Cadila,

1 19432

why the ph scale range is 1 t0 14 and why not beyond 14 and not to below 1?

Avra, Granules, Orchid,

5 22197

What is method validation in quality control

Alchem,

1 5130

Why we use uracil and caffeine in hplc calibration

Alchem, Reddy Labs,

6 30204

If mass balance is not passing in forced degradation in method validation that method is suitable or not?

Aurobindo, Dr Reddys, Reddy Labs, Wockhardt,

1 9084

Why we compare unequal concentrated solutions in heavy metals test. For example comparing the test solution with 1 ppm lead standard and telling it's less than 20ppm?

Micro Labs, Mistair,

1 7904

What is the reason for negative peak in HPLC while using UV detector.

2 16010

What is the reason of RT change in new column v/s old column in HPLC

Apex,

3 18299


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?

2228


what is mean by dissolution biowaiver study?

997


Is it nessesary all multimedia dissolution require descriminatory?

861


if you have given one product then how you determine the impurity in that?

802


how to calculate elemental impurities?

1086


in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?

809


if your product is soluble in 0.1n hcl and water then which you choose as media from these 2 media?

735


What is diffrence between extractable volume and deliverable volume? Answer pls

4620


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?

786


identification is for unknown? qualification for known? reporting for LOQ?

780


why we are using benzene, anyline in acetic anhdride assay titration method?

2170


How much is the standard area for glc analysis

2334


WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

2626


in which situation require to change rs specification?

799


how can give the expiry period and restadardisation of volumetric solution

2643