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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

how can u seperate polar compounds in hplc ?

Meditab, Piramal Healthcare,

1 7539

what is the difference between hplc and uplc?

Fresenius Kabi, Mylan,

5 10274

what is the basis of separation in chromatography?

Anthem,

1 6247

what is the diference between spectroscopy and chromatography

Cipla, PharmChem, Reliance,

2 11246

Why we have to take 42gm of sodium hydroxide instead of 40gm for preparation of 1M Sodium hydroxide as per Pharmacopia? Whether it means the formula for calculating molarity was wrong? 

Claris Otsuka, Ranbaxy,

5 16420

what is internal standard define

Apex, Coromandel International Limited, Hikma Pharmaceuticals, IPCA,

2 4787

pharma industries oriented

Apex, Micro Labs, Zydus Cadila,

2245

gc Calibration % RSD failed what is the possible reasons?

Divis Laboratories,

5 17731

What is the procedure for the calibration of ph meter?

IBS,

1 4329

What are the parameters for the method development of Gas Chromatography and GC-HS? 

2 5783

What is the difference between purge septum flow and column flow in gas chromatography?

2584

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

Reddy Labs,

2578

U have 4 strengths have different coating meterial which one u chose to do forced degradation stady in validation

Reddy Labs,

1 4187

Tell me about analytical method validation in QC

Petronas,

6181

what is procedure of actual procedure for registration of drug?

2012


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

2636


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

2577




2321


How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?

734


If we have 5 strength which is not dose proportinate and excipients also diffrent in each strength then how we can proceed for Force degradation? and excipient are same but not dose propotinate the how FD?

800


in OSD forms require to use gas chromatography?

834


Why we check moisture,ash & AIA in product

1881


can we use the same detector in HPLC as well GC and what could be the differences we can find in the final chromato graph in any aspects?

2182


why require to do water content for drug product?

827


In Assy by potentio metry titration method how select MET U ,DET U, SET U,

2171


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

1689


How would you decide dissolution medium for NCE compound of class I drug

2256


CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1207


How can I develope method of dissolution by HPLC OR UV

2408


how require to set assay concentration for standard and sample?

920