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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

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

4573

why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?

1708

Qc interview questions

Apotex,

1743

What is difference between" LOD" AND "VACCUME LOD"

2 4795

why are measure gas flow " ml " in Gas chromatography

1661

Difference between standard operating procedure and standard test procedures in pharmaceutical industry

2 10005

How to start the dissolution development for unknown tab?

IPCA,

1680

what is DIPE limit in residual solvent?

1 3294

What is control room temperature and which guide line says?

1637

What is the pH of water?

Zydus Cadila,

1 3618

Why we use buffers Acetate for pH 4.5 & phosphate for 6.8 and not vice-versa?

Zydus Cadila,

1 3269

We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?

1719

Dear sir, This is R.Kadambavadani working in a pharma industry. while doing RS analysis of ibuprofen API, unknown peak eluting some times in the 0.6 Min RT. Kindly send me what is the exact reason behind that. also am using ACN the mobile phase.

1 2586

What is difference between chemical Assay and Hplc assay?

Lee Pharma,

2 5273

Near infrared Principle

1 2711


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

In rs method development when we are going area normalization method to dilute standard method?

1524


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


why we should take dst factor for below 1%moisture samples

2666


How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

3218


HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.

2249


Why are use silicon oil mr?

1204


Why we check moisture,ash & AIA in product

1885


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

2586


How to know the estimated LOQ concentration in ppm

1213


in gas chromatography what is the difference between gas flow rate and average linear velocity ?

2604


What is similarity factor?

1206


What is the main difference between ODS1 and ODS2 Hplc column.

5219


Why only 1.2 million lux hours require in photostability study?

1037


some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?

2655


How can we calculate offset value pH measurment

1510