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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is the difference between kf  and LOD

Enaltec Labs,

5 22481

What is chiral and why this performing in HPLC

Hetero, Macleods,

4 20659

How to Calibrate NMR instrument ?

Reddy Labs,

1 5476

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

Reddy Labs,

1 12208

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 4730

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

Aurobindo,

5 28504

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 7104

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 30563

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

Laurus, Teva API,

11 86173

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,

2291

what is the maximum flow rate in prep hplc

Meril Life Science,

1 3980

how will you do the prep for unstable componds?

AMRI, CTX Life Sciences, Piramal Healthcare,

2025


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

What is similarity factor and its use in api strength?

1299


UV and PDA detector, which have less signal to noise ratio?

1132


Why perchloric acid used for potentiometric titration

2683


In IR spectra, generally a molecule vibrates without apply emr or ir light?

1979


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

2546


give clarity of linearity and range in method validation

2420


In performance Check of GC Why Hexadecane Peak is Considered 

3044


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

4573


What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

1897


all types of questions asked at the cipla interview

4685


How can we calculate offset value pH measurment

1510


what is the disso medium for tropsiun chloride

2260


how you establish the LOQ?

793


why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

2298


What is a difference between potency and purity?

1221