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

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

What is the difference between kf and LOD

Enaltec Labs,

5 22484

What is chiral and why this performing in HPLC

Hetero, Macleods,

4 20662

How to Calibrate NMR instrument ?

Reddy Labs,

1 5478

what is difference b/w spectroscopy, Spectrometry and Spectrophotometry ?

Reddy Labs,

1 12210

Hello Dear all; I have a technical question related to analytical Chemistry, I have a sample of (40% w/w) Ferric Chloride solution (for water treatment purposes which consist a little portions of Ferrous Chloride and Hydrochloric acid. I need to know the methods to determine the percentages of each Ferrous Chloride and Chloride acid. Also I want to make sure that this solution is truly (40% w/w). So ANY CLUE !!! Thanks in advance.

2 4733

What is the meaning of 624 in DB-624 Capillary column used in GC?

Aurobindo,

5 28506

In Agilent HPLC calibration using Empower 3 Software, What is the criteria for GPV Baseline starting point? i.e., Either it can start from -0.00/+0.00 or any range is there like -0.05 to +0.05 or ......etc?

Apotex,

1 7105

using gradient pressure in gas chromatography are not ?using gradient pressure why

Reliance,

3390

What is the difference between STANDARDIZATION and CALIBRATION of instrument like KF? why do we standardization of KF everyday? Why the KF factor being only 5.02 etc?

AlpaMed, Vergo pharma research,

5 30566

What is Formula of Potency calculation on Dried basis, As is basis& Anhydrous basis.

Laurus, Teva API,

11 86179

Why base line not start from zero in GC Chromatography analysis.

Orchid,

1 6919

Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

Apex Encon Projects Private Limited, Cipla,

2609

can i use hplc detector to uplc and why?

Mylan, SGS,

2292

what is the maximum flow rate in prep hplc

Meril Life Science,

1 3982

how will you do the prep for unstable componds?

AMRI, CTX Life Sciences, Piramal Healthcare,

2028

Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

2609

2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

2224

Did anybody have method for acetyl cysteine effervescnce tablet

2254

What is the diference between residual solvents and organic volatile matter

2055

we can use expired sample for validation and analyst qualification?

812

about method developement in hplc

1721

why multimedia dissolution require to do?

831

Why we check moisture,ash & AIA in product

1885

on the basis of bcs class how to proceed the solubility?

782

how to decide for one product require water content or LOD?

783

what is procedure of actual procedure for registration of drug?

2012

What is diffrence between extractable volume and deliverable volume? Answer pls

4573

Which is the highly polar and highly non polar column in HPLC?

2309

What is dose dumping? why require to do?

952

We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

1906

For More Un-Answered { Analytical Chemistry } Questions Click Here