Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is Isotope tracer technique?

WNS, MAHINDRA, MPSC, PSI Data Systems, LAP,

1 4588

In Karl fischer titrator what medium we can choose to analysing aldehyde and ketone samples by using KF reagent

4 7982

Can we do the MC analysis of a sample which is not completely soluble in the medium choosed.

2 4336




what is reverse phase chromarography&normal phase chromatography

Aurobindo,

4 8473

what is difference between Performance check and Calibration?

1 10138

What is the correct way to digest milk powder to get the corrrect value of Fe and Zinc?

1 2180

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?

1183

What is the reason for using the 900ml of dissolution medium

Cipla,

15 52804




what are the different methods of analysing related substances test,what are LOD AND LOQ .HOW TO REPORT IMPURITIES WHEN LOD AND LOQ LIMITS R SPECIFIED

Dr Reddys,

3 17287

Which type of material analysis in GC using Theramal conditivity detector ?

7 5748

suppose i give three compounds A,B,C how do u calculate assay of those three componds which method do u prefer

5 6257

why you require QA approval & what is its importance?

2 5079

wt is rsd in and explain

Cadila, Reddy Labs,

4 11454

what is the difference of use of LOD test and Karl Fischer titra.?

15 23065

What is the difference between Paddle and Basket Why we are using Basket or paddle in dissolution.

Apotex, Cipla, Intas, GSK, Zydus Cadila,

6 34619


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Un-Answered Questions { Analytical Chemistry }

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

868


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

909


cefoperozone and sulbactam inj. hplc test method

1215


How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

1152


If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

903






What is column in chromatography?

737


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

591


What is the difference between known and unknown impurities?

175


acceptance criteria for lod & loq by standard deviation of response and slope??

1108


what is third integration

650


Why irmoisture balance is used for corrugated box moisture testing

985


Why dissolution test is not performed in all of the products

1116


We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

81


What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

5524


why we use sodium salicylate in uv light calibration at TLC chamber

4718