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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

Please do not join if u got offer in oncotherapies ltd (STRIDESARCOLAB)especially Mr.Mahesh Bhatt team because job is not secure his team and doesn't have confidence on him becareful this offer?

Strides Arcolab,

1 3227

In partical size by malven,which parameter is generlly change for development of dry and wet method.

1 1542

As per ICH related substances stability trend limit from initial to shelf life

Medley Pharmaceuticals, Micro Labs,

2183

what is the difference between EP and BP

Novartis, Vimta Labs,

2 16436

which detector is used in IR

Hetero,

3 12208

why hexadecane is used in calibration of FID IN GC THERE IS NO REMAINING SOLVENTS

DRL, Hetero, MSN,

1 6026

WHY POTASSIUM HYDROGEN PTHALATE IS USED FOR PERCHLORIC ACID? What is difference btw UV detector & RID detector? what is dissolution? What is unit of KF? what is the significant of pH in HPlc?

1 8137

what is dissolution What is unit of KF? what is the significant of pH in HPlc? WHY POTASSIUM HYDROGEN PTHALATE IS USED FOR PERCHLORIC ACID? What is difference btw UV detector & RID detector?

1 6501

I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?

2447

Hplc detect how much ppm solutions i want range

4 8389

If we change lenght of ph eletrode wire then it will affect on ph ?

2 5902

In kf constant term 16 what it is explain ?

2 6471

Why dissolution apparatus having 8 jars ?

5 11878

What is the unit of Colour?

IPCA,

4 7930

who is the father of HPLC?

Cipla, IPCA,

6 16318


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Un-Answered Questions { Analytical Chemistry }

How can we calculate offset value pH measurment

571


Why six unit used for precision?

235


USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...

951


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

8692


What is third generation HPLC Columns?

1082






give clarity of linearity and range in method validation

1328


WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?

197


in dissolution why pool sample needed? in which type of drug pool sample need?

2166


How much is the standard area for glc analysis

1291


what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

2547


why does used dry caffien in HPLC calibration?

1063


How to establish relative response factor for hplc. Why it is required?

197


Why a1% value is used for some product ? What is the criteria for selection a1% value ?

1370


acceptance criteria for lod & loq by standard deviation of response and slope??

1563


1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

667