Interview Questions Answers in Analytical Chemistry

kiran kumar

{ City } hyderabad
< Country > india
* Profession * research associate
User No # 86530

Total Questions Posted # 2
Total Answers Posted # 4

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Questions / { kiran kumar }

Questions Answers Category Views Company eMail

mixed 1.0 ml of methanol and 1.0 ml of toluene and injected in gas chromatography.will you prove that both solvents are in the ratio 1:1(not by area normalization)

1 Analytical Chemistry 3680

In the method validation proceedure,lod & loq calculation we use the formulae for LOD=3.3*SD/slope and for LOQ=10*SD/slope,why we use 3.3 & 10 in the formulae?

1 Analytical Chemistry 10913

Answers / { kiran kumar }

Question { Aurobindo, 34301 }

what is the lamp used in SOR?

Answer

for 589 nm and above Na lamp
for below 589 nm Mercury lamp

Is This Answer Correct ?

1 Yes

0 No

Question { 7304 }

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

Answer

balaji ans correct,but additional to that powder the sample uniformly and do the analysis

Is This Answer Correct ?

1 Yes

1 No

Question { Orchid, 28007 }

As per USP what is RSD limit of volumteric solution of
three replicate analysis

Answer

1 % rsd for three replicate analysis

Is This Answer Correct ?

5 Yes

19 No

Question { Pharmaceutical, 22154 }

In HPLC when we use Isocratic method, Gradient method in
hplc?

Answer

in the gradient composition method , impuries give high responses upon changing the concentration of mobile phase

Is This Answer Correct ?

1 Yes

3 No