Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is the difference between drug product and drug substance?

Apotex,

1 2350

What is excipient in drug product?

Lupin,

1 1844

What is GF254 means in TLC plate?

Abbott,

1 2391

What is zero water in TOC Analysis?

Orchid,

1 1963

What is the name of the detector used in TOC?

Lupin,

1 1966

What is NPOC method in TOC?

Zydus Cadila,

1 1690

What is FDA form 482c?

Lupin,

1 2307

What are the class-1 residual solvents listed in ICH guidelines?

2 2808

What are the concentration limit for class-1 residual solvents in ICH ?

Lupin,

1 1863

How does HPLC Calculate Void volume?

Lupin,

1 2246

What does theoretical plates number mean?

Zydus Cadila,

1 2095

How do you increase the number of theoretical plates?

Cipla,

1 2467

Why red HgI2 added during starch preparation?

Aurobindo,

1 1834

What is the Formula for coreletion coefficient in plhplc calibration

1265

How to calculate coreletion coefficient

1153


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Un-Answered Questions { Analytical Chemistry }

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

292


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

3963


which batch require to use for analytical method validation?

353


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

2171


Principle of single pan analytical balance

4614






What is the principle of Thermal conductivity detector and FID?

2268


in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?

349


Tell me about analytical method validation in QC

5583


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

1997


How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

2727


in which situation require to take incident in validation?

788


Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

1234


How to fix the sample conc. in Related substances test by HPLC?

627


Why sodium hydroxide used for maintain pH of phosphate buffer

1851


how pda detector works over uv?

301