Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is the difference between kf  and LOD

Enaltec Labs,

5 16561

What is chiral and why this performing in HPLC

Hetero, Macleods,

4 15754

How to Calibrate NMR instrument ?

Reddy Labs,

1 3324




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

Reddy Labs,

1 9742

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 2280

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

Aurobindo,

4 16677

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 4088

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

Reliance,

2187




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 20504

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

Laurus, Teva API,

10 51608

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

Orchid,

1 3930

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,

1396

can i use hplc detector to uplc and why?

Mylan, SGS,

1034

what is the maximum flow rate in prep hplc

Meril Life Science,

1 1549

how will you do the prep for unstable componds?

Piramal Healthcare, CTX Life Sciences, AMRI,

728


Post New Analytical Chemistry Questions






Un-Answered Questions { Analytical Chemistry }

What is third generation HPLC Columns?

784


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

3765


WHAT IS THE USE OF STARTER ?????????

1153


WHY pKa value is more important than pH value of the mobile phase in HPLC?

152


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

1131






WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

1448


What is intact assay method development.....?

1192


give clarity of linearity and range in method validation

1022


could negative ions be produced by bombardment process in mass spectrometry?

264


what is peak purity and its formula

296


Tell me about analytical method validation in QC

2245


Can we interpret accuracy from linearity in method validation?

821


What is stray light in uv what are units for stray light

322


4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations

1356


when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.

847