Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

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

3915

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

1177

Qc interview questions

Apotex,

1242

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

2 3520

why are measure gas flow " ml " in Gas chromatography

1148

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

2 6695

How to start the dissolution development for unknown tab?

IPCA,

1132

what is DIPE limit in residual solvent?

1 2283

What is control room temperature and which guide line says?

1150

What is the pH of water?

Zydus Cadila,

1 2861

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

Zydus Cadila,

1 2503

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

1144

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 1807

What is difference between chemical Assay and Hplc assay?

Lee Pharma,

2 4052

Near infrared Principle

1 1907


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Un-Answered Questions { Analytical Chemistry }

Which is the highly polar and highly non polar column in HPLC?

1767


Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

1454


Why six unit used for precision?

794


what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

1483


why require to do water content for drug product?

308






why does used dry caffien in HPLC calibration?

1555


how to develop the icp ms method? Application of icp ms?

303


UV and PDA detector, which have less signal to noise ratio?

636


if tech transfer fails whay require to do?

322


what are risk assement in the analytical qbd?

277


what is the disso medium for tropsiun chloride

1793


how to select short coloum and long coloumn for new molecule

1809


Why are use silicon oil mr?

734


What are modes of quantification in related substances

1711


if rsd failed then what require to do?

310