Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

how to prepare solution in ppb

6 12499

how to prepare low ppm solution from high ppm solution ?

1 6848

wt is difference between assay and purity in hplc?

Hetero, IDRS Labs,

9 65101

difference between AAS & flame photo meter ?

3 27819

how to calibrate AAS ? give me the procedure?

3 10963

why peak purity not considered in GC?

DRL, Reddy Labs, Vimta Labs,

4 11231

from compund pka value how to select buffer and column?

Emcure, Zydus Cadila,

2 6071

what is Beer Lambert low ?


8 10505

principle of AAS & its uses ?


1 2881

how ir specrometer is calibrated ?

1 3719

what is pKa ?

Dr Reddys, Shasun Chemicals,

10 13342

How you can calculate pKa ?

Dr Reddys,

6 12328

what buffer you can select for acidic nature analyte and how ?

Dr Reddys,

2 10053

What is Specificity ?

Dr Reddys,

8 9806

Whya the need of Specificity to do in Analytical Method Validation ?

Dr Reddys,

4 10453

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Un-Answered Questions { Analytical Chemistry }

explain 5 components of gas chromatography ?


Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?


What is the principle of Thermal conductivity detector and FID?


how can give the expiry period and restadardisation of volumetric solution


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


Explain the relations between number of carbon atoms in alkanes and retention time ?


How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?


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


how to select short coloum and long coloumn for new molecule


mahagenco syllabus for the post of chemist


What is the acceptance criteria for moisture balance when calibrated with sodium sulfate


In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?


Why we check moisture,ash & AIA in product


Why dissolution test is not performed in all of the products


what is the structure of DOWEX-50