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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

Can you please give a suitable definition and an example for understanding the words purity and potency.

Cipla, Malladi Drugs and Pharmaceuticals, Reddy Labs,

6 11457

What is column in chromatography?

Chembond Chemicals,

2238

Which Pharmacopiea follow calibration of HPLC,GC

Bayer, Reddy Labs,

3 10319

Why Holium cholorate used in UV Spectro photometer?

Reddy Labs,

7 11905

why we get negative values in uv when i placed sample which has some concetration but not in standard

Nirma,

1 5296

Why water not directed by FID detector 

Amoli Organics, Lupin,

2 6607

what is definition of validation? which components are followed give detail?

2373

how the compound separate in coulunm,explain

Wockhardt,

2533

What is the principle of HPLC?

Cipla, Lupin,

3 10168

Why methanol & acetonitrile is mostly used for hplc analysis?

DRL,

2 14631

Explain about empower software of analysing?

DRL,

1 5885

why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space

Raks Pharma,

2268

Why use the Omeprazole as a reference standard to estimate the assay of esomeprazole by HPLC method

Student,

1 4805

are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????

Beni Suef University, Graviti Pharmaceuticals, Sri Krishna Pharmaceuticals,

1 2711

In UV calibration we use Holmium perchlorate solution made in 1.4M perchloric acid The question is that 1.4 M perchloric acid we make is it in water or glacial acetic acid?

4 12787


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

Why to use propyl paraben in HPLC gradient calibration

7488


what are risk assement in the analytical qbd?

762


What is the purpose of octyl silane columns?

4290


what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

4489


How would you decide dissolution medium for NCE compound of class I drug

2258


in hplc chromatogram started from left to right and in uv spectrum started from left to right

953


In performance Check of GC Why Hexadecane Peak is Considered 

3045


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

3254


process of Diclofenac sodium,IP.

2213


How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?

734


could negative ions be produced by bombardment process in mass spectrometry?

1781


What is the diffrence in japan mkt requirement in analytical method validation over US?

721


Many times I don't got a caffeine peak in calibration of hplc using guard column ❓

1820


What is the difference between purge septum flow and column flow in gas chromatography?

2586


why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space

2268