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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

in dissolution in one tablets two molecule one is losartan & second is HCTZ losartam is complies in s1 stage & hctz is complies in s2 stage then how to report result losartan s1 stage result or losartan s2 stage result

Dishman,

1 2802

why we use polystyrene film for ftir calibration?

Rakshit Drugs,

4 19263

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

GVK,

2577

why do we adjusted ph in the mobilphase

Cipla, Dr Reddys, Reddy Labs,

9 25327

How to develop the method when we have very low amount of impurity?

2 8306

If we have 120 minutes run time method for HPLC and you wan to decrease the Run time so what should you do??

6 13858

Wath is the differenc between two column HPLC wich have the samme support , lenth , pore size, etc.. But different name .for exemple : Spherisorb / lichrosorb

NDA,

2 8068

WHAT IS PVT TEST IN DISSOLUTION TEST , WHAT IS PVT SIGNIFICANCE AND HOW IT IS PERFORMED ?

1 7551



2321

How you will select column for HPLC development depends on nature of compound and how it will work explain in brief?

3 10978

What is the role of SO2,I2, Methanolic hydroxide and any base in Karlficher titration

Medley Pharmaceuticals,

2 9278

The boiling point of 1,3 butadiene is -4.4 DC & the boiling point of Pentane is 36.1 DC. Then how come Pentane elute before 1,3 BD in GC analysis?

1 5455

What is Arsenic Test?

Flamingo Pharmaceuticals,

2504

What is the difference between Optical rotation and Spcefic optical rotation

IPCA, Matrix,

2 13561

why we use sodium salicylate in uv light calibration at TLC chamber

Aurobindo, Lee Pharma,

1 9042


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

Explain the relations between number of carbon atoms in alkanes and retention time ?

2145


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

2546


what is the extinction coefficient for Indomethacin or at 319nm wave length.

4071


Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc

1469


Did anybody have method for acetyl cysteine effervescnce tablet

2253


in gas chromatography what is the difference between gas flow rate and average linear velocity ?

2601


How can we calculate offset value pH measurment

1510


what you do when compound having dwel wavelength?

750


What is the use of tlc and hplc? And when and where use?

1160


why digestion require in icpms?

770


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

2636


Why dissolution test is not performed in all of the products

2537


Principle of single pan analytical balance

5143


why octanol used to determine the partition coefficient ?

2458


How to determine water content of bis tetrazole amine mono ammonium salt

3486