Interview Questions Answers in Analytical Chemistry

Questions / { prasad }

Questions Answers Category Views Company eMail

Why we are using a Kf Factor range 4 to 6

7 Analytical Chemistry 56074

Why we are using the methanol in Kf titration?

Reddy Labs,

6 Analytical Chemistry 19600

What is difference between Potency & purity

3 Analytical Chemistry 13427

Answers / { prasad }

Question { Cipla, 24928 }

IN DISSOLUTION TEST S1AND S2 AND S3 CONDITIONS ALL ARE
FAILED THEN WHAT IS THE DESSICION U CAN TAKE

Answer

If it is in before packing or out of packing it is crushed in to grandules further regenarate the tablet to increase dissolution then it goes to the S1 levels

Is This Answer Correct ?

1 Yes

3 No

Question { 7551 }

diference b/w packed &capilary columns

Answer

Capillary Columns : it is just like a narrow type. it contains
very long length contain 30mts & 75 mts etc.it is just like a cupper wire.
packed column: it is a s.s. column it contain packed type.

Is This Answer Correct ?

4 Yes

3 No

Question { Micro Labs, 9608 }

what is mean by Q in S1 and S2

Answer

where Q is the amount of %of dissolve an active ingredient in that specified conditions

Is This Answer Correct ?

14 Yes

4 No

Question { 8974 }

what is the meaning of linearity,principle of co-relation
coefficient?

Answer

Linearity : it is the ability of the method to obtain a test results.Which are directly praportional to conc of analyte in a sample.

Is This Answer Correct ?

4 Yes

1 No

Question { Matrix, 48874 }

water is more polar than acetonitrile.but in reverse phase chromatography peaks elute earlier when we increse Acetonitrile.what is the reason.

Answer

based on the solubility of the drug.Most of the drugs are insoluble in water

Is This Answer Correct ?

9 Yes

10 No

Question { Apotex, 19322 }

why we calibrate ph meter and balance daily.....but hplc and
uv requires quaterly?

Answer

pH and Balances are sensitive towards temperature and probably day by day temp changing

Is This Answer Correct ?

4 Yes

1 No