Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

how to prepare solution in ppb

6 12902

how to prepare low ppm solution from high ppm solution ?

1 7011

wt is difference between assay and purity in hplc?

Hetero, IDRS Labs,

9 67167




difference between AAS & flame photo meter ?

3 28884

how to calibrate AAS ? give me the procedure?

3 11205

why peak purity not considered in GC?

DRL, Reddy Labs, Vimta Labs,

4 11490

from compund pka value how to select buffer and column?

Emcure, Zydus Cadila,

2 6296

what is Beer Lambert low ?

MAN,

8 10767




principle of AAS & its uses ?

Auriga,

1 2938

how ir specrometer is calibrated ?

1 3822

what is pKa ?

Dr Reddys, Shasun Chemicals,

10 13587

How you can calculate pKa ?

Dr Reddys,

6 12551

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

Dr Reddys,

2 10254

What is Specificity ?

Dr Reddys,

8 9985

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

Dr Reddys,

4 10634


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Un-Answered Questions { Analytical Chemistry }

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

176


Basic principle of ESI?

764


How can I develope method of dissolution by HPLC OR UV

878


How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

1007


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

2114






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

1745


how to get accurate result for Residue on evaporation in purified water

192


In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

879


How can the GC or HPLC method is selected to determine the impurity profile in drug product?

5245


Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

780


As per ICH related substances stability trend limit from initial to shelf life

1607


why are measure gas flow " ml " in Gas chromatography

247


calibrtion procedue of LC-MS

1172


Which std. used for standrdisation of ZnSO4?

953


what is peak purity and its formula

110