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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is rs test why we are perfoming rs test

2 10741

In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

Orchid,

3178

What is difference between silica used in TLC and HPLC column

Cipla, Meghmani Organics,

4 19781

Why Urasil and Caffeine use for HPLC wavelength accuracy calibration. which is most suitable, Why? other than these which can be used?

Cipla,

7 19483

When we r doing processing method for sst in Empower software by HPLC, What value has to give in void volume and as per which pharmacopia!

Micro Labs, Mylan,

5 15273

what is use of acetonitrile compare to methanol in RP-HPLC Method devlopment

Neuland, Orchid,

7 24507

is a bonded water molecule in an organic material can be easlisy and accuractly determined by KF rather than LOD

2 7775

How to know HPLC column performance?

Meghmani Organics,

4 13388

What is heavy water

Meghmani Organics,

3 8992

What will be the effect on HPLC analysis result if three mobile phases given separately through three valves and same proportion mixed together and given by one valve?

LOIL,

1 5273

Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

2865

Why PH range from 0to14.

College School Exams Tests, Reddy Labs, Wings Customer Care,

2 14400

why you are using benzoic acid for water content determination in TEA

2 7922

difference between instrumenent and equipment

6 14182

mixed 1.0 ml of methanol and 1.0 ml of toluene and injected in gas chromatography.will you prove that both solvents are in the ratio 1:1(not by area normalization)

1 3779


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

what you do when compound having dwel wavelength?

750


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

1900


if content uniformity passing but dissolution varrying then what is next step?

878


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?

2788


how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2603


What is dose dumping? why require to do?

952


How much is the standard area for glc analysis

2287


calibrtion procedue of LC-MS

2711


How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

1779


why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

9798


What is third generation HPLC Columns?

1981


in DMF having extra impurities and in api COA also having extra imp than USP or BP product then how require to proceed?

837


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

2735


what is third integration

1976


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?

2314