Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

How you collect dissolution media while in stirring condition of a basket or a paddle?

Mylan,

2 3149

At what distance the sample is collected in dissolution basket?

3 5711

why we use prednisone tablet in chemical callibration of dissolution apparatus?

Cipla, Mylan, Umedica Laboratories,

6 29061




Why Ethanol is Used for Standardization of GC Head space?

Cipla, Sun Pharma, Hetero, Finar Chemicals, Anuh Pharma,

2612

How much area of methanol or other solvent are acceptable in blank (Diluent) of Gas chromatography.

2 6025

As per OOT for any product what is calculation and how to invetigate the OOT

Hetero, Aurobindo,

3 9087

What is Spliit and Splitless in Gas Chromatography nad How does it work?

Sterling,

4 7402

Why used 0.02% v/v solution of toluene in hexane for calibration of UV.

3 8414




Why 1.2% KCl is used for limit of stray light? and why limit of stray light is required in UV calibration?

Ranbaxy, Lupin,

5 33415

How to decided test concentration in GC analysis.

3 4633

What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

1313

in calibration of disintegration test apparatus why cycle limit is 28-32?

Caplin Point,

1 9224

Why pH range is maximum 14.0

UPL,

6 21658

what is the structure of DOWEX-50

3688

What is the difference between Normal phase method & Reverse method in HPLC ? Define application of both method.

4 15824


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Un-Answered Questions { Analytical Chemistry }

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

957


What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

1313


What is method validation in quality control

2401


Colorimtry

221


why 6 tablets use for dissolution

1875






what is the purge flow & how to calculate

1174


can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?

913


for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

3598


What is Band broading effect explain

562


iam usig ph buffers merk. manually how to prepare ?

987


Why Ethanol is Used for Standardization of GC Head space?

2612


What is the main difference between ODS1 and ODS2 Hplc column.

1833


How to do regeneration of Metacarb Pb plus column?

1263


What is importance of pH in the Heavy metal test and How it effect on the test results?

954


How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

1213