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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

how can delete the impurity in 1-(2:6 dichloro phenyl)-2-indolenone.and desolving the impurity in which solvent but does not desolve product in solvent.

1 3124

What is the pilot-plant in pharma sector.

Dr Reddys,

1 3432

What is blank titration of potentiometrically.

2 10864

process of Diclofenac sodium,IP.

2213

why we are using benzene, anyline in acetic anhdride assay titration method?

2115

which solution used for detecting factor of k.f.titroter except water

3 10092

in dissolution why pool sample needed? in which type of drug pool sample need?

Torrent Pharma,

3180

void volume is depending on column or not? if yes how will you depend?

Granules,

1 7525

what is difference between polarity and dipolemoment

Neuland,

3 10456

in determination of(acetone) moister content we are using methanol replaced by pyredine.what hapend in that reaction.

Glenmark, Neuland,

2 9488

what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

2630

What is the difference between spectro meter and spectro photo meter?

APM, Graviti Pharmaceuticals, Ranbaxy,

1 11515

How do u differentiate primary

1 3233

WHEN AN UN KNOWN SAMPLE IS GIVEN TO U,HOW WILL U START THE ANALYSIS(ie FIRST WHICH TEST TO BE DONE,NEXT,THEN NEXT),HOW WILL U DECIDE WHICH TYPE OF ANALYSIS TO BE DONE FOR IT?

Aurobindo,

2 10939

WILL YOU DRY DST BEFORE FACTOR DETERMINATION BY USING KARL FISHER TITRATOR

Aurobindo, Meghmani Organics,

4 12338


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

if instrument calibration fails then what require to do?

980


why does used dry caffien in HPLC calibration?

2032


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

2309


Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

2727


Tell me about analytical method validation in QC

6181


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

4489


In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

3178


What is the calibration of uv process and preparation

1998


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

1524


How doing qbd practically?

979


in hplc chromatogram started from left to right and in uv spectrum started from left to right

953


how much mass should be there in volumetric flask while in preparation of sample for assay? 

2580


What is aggregate and fragments in SEC?

2114


in which situation ion pair require to use?

821


What is the requirement for brazil in the analytical method vslidation comparr to ich?

782