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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 11633

What is column in chromatography?

Chembond Chemicals,

2290

Which Pharmacopiea follow calibration of HPLC,GC

Bayer, Reddy Labs,

3 10430

Why Holium cholorate used in UV Spectro photometer?

Reddy Labs,

7 12120

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

Nirma,

1 5382

Why water not directed by FID detector 

Amoli Organics, Lupin,

2 6707

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

2448

how the compound separate in coulunm,explain

Wockhardt,

2594

What is the principle of HPLC?

Cipla, Lupin,

3 10286

Why methanol & acetonitrile is mostly used for hplc analysis?

DRL,

2 14770

Explain about empower software of analysing?

DRL,

1 5946

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

Raks Pharma,

2332

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

Student,

1 4894

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

Beni Suef University, Graviti Pharmaceuticals, Sri Krishna Pharmaceuticals,

1 2776

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 12947


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

How to calculate coreletion coefficient

1764


using gradient pressure in gas chromatography are not ?using gradient pressure why

3440


Why sodium hydroxide used for maintain pH of phosphate buffer

2484


why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

2360


how require to interprit the method precision data of hptlc?

870


in sampling of raw material which side is pasted sampled labels

1887


which are the diffrent batches in the pharmaceuticals?

863


what is mean by extactable and leachable study?

1226


why are measure gas flow " ml " in Gas chromatography

1702


If vendor having more imp than monograph then how to proceed? and how to set spec?

1004


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

792


From where require to take the RLD sample?

804


How to calibration of the uv spectroscopy and its test?

1243


how you start RS method development when for new product?

779


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

4536