Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

One Raw material failed assay test is there any chance for failing purity of that material ?

Mylan,

7 11835

What are the differences between GC and HPLC?

1 14348

Why do we need GC instead of HPLC? or Why do we need HPLC instead of GC?

4 11608

What is linearity in HPLC and how will you test?

1 18857

what is the difference between polarimeter lamp and ir lamp

2935

What is the difference of time between two consecutive injections in HPLC?

Nectar Lifesciences,

2 9763

what is difference between IR lamp and polarimeter lamp

Raks Pharma,

2 8654

Why dissolution test is not performed in all of the products

Biocon, SDD,

2009

why we need to do karl ficher fector ?

Reliance,

2 11262

Why we are use 0.005M Sulphuric acid, in control of absorbance performance test UV Spectrophotometer calibration

Cipla, Reddy Labs,

2 15036

How much sample concentration should i inject against diluted standard in related substances for drug product in hplc analysis

Apotex,

1 3691

how to prepare 25 ppm acetone. explian with formula

4 16178

why sucrose not used in polarimeter calibration?

Cipla,

2 9654

What is the diffeence between assay and uniformity of content

2 8980

why ur using toulene in hexane in u.v calibration?

Biological.e.limited, Cipla,

3 28390


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

What is mean by PDR?

302


what is mean by peak intigrity?

309


In which situation we require to prepare the standard solution from sample in Related substance method?

264


why we use glass fiber filters use in some situation?

304


which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

1705






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

3873


Which parameter require to do for analytical method equivalency?

292


What if impurity area in control sample coming more as compared to LOQ level of impurity ?

1113


what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?

9383


how require to select dissolution media? what is discrimination?

286


How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?

2838


please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

1069


process of Diclofenac sodium,IP.

1644


What is similarity factor?

692


if you have given a blank water how you analyse by general analytical techniques?

1483