Analytical Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

IN pH CALIBRATION,CALIBRATION IS DONE FOR pH METER OR ELECTRODE?HOW WILL YOU JUDGE THAT THE METER TO BE CALIBRATED WITH 4,7,9.2 BUFFERS?EXPLAIN TEMPERATURE EFFECTS ON pH.

Aurobindo,

1 11150

AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

2114

What is a base line?

2 11485

what is differance between density and specificgravaty

Neuland,

2 11893

what is defferance between dipolemoment and polarity

Neuland,

1 8342

In standard weight box used for calibration of analytical balance there are two numbers (Qty) of 20mg, 200mg,2.oGM weights. Why?

Orchid,

2 16184

WHAT IS USE OF ION PAIR REAGENTS?

3 10655

How to calculate signal to noise ratio by this formula 2H/h where h from where and how to measure

2 10698

How to choose the which salt is suitable for mobilephase

Cipla, Ranbaxy,

3304

What is quality controle.

6 11998

What is Standard deviation

Cipla,

2 12270

When you get Moisture content by KF higher than by LOD, what does this indicate?

7 18464

what is deference b/w the working standard and reference standard

4 27710

How do we fix the sample concentaryion in hplc method development. what is the basis?Thanks in advance

DRL, Glenmark, Orchid,

4 21134

Suppose we prepared pH buffer solution in lab.and calibrate against NIST solution, and same shall going to used upto 30 days. is it possible to stable pH and apperance ? suggest ?

Orchid,

1 6147

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Un-Answered Questions { Analytical Chemistry }

i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

2783

How to know the estimated LOQ concentration in ppm

1279

what is %labelled amount in content uniformity of dosage unit and its calculation?

5303

what type of question will ask in the interview of lab chemist.

3364

What is Band broading effect explain

1941

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

2091

what is the extinction coefficient for Indomethacin or at 319nm wave length.

4127

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

2615

which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

2215

if you given one product then which tests you will perform?

750

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

3225

how much mass should be there in volumetric flask while in preparation of sample for assay?

2668

From where require to take the RLD sample?

806

What is third generation HPLC Columns?

2037

Identify problem faced when mass spectroscopy is used with HPLC system ?

1932

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