Analytical Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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 2749

why we use polystyrene film for ftir calibration?

Rakshit Drugs,

4 19088

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

GVK,

2533

why do we adjusted ph in the mobilphase

Cipla, Dr Reddys, Reddy Labs,

9 25031

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

2 8236

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

6 13664

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 7967

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

1 7478

2278

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

3 10872

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

Medley Pharmaceuticals,

2 9190

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 5373

What is Arsenic Test?

Flamingo Pharmaceuticals,

2452

What is the difference between Optical rotation and Spcefic optical rotation

IPCA, Matrix,

2 13407

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

Aurobindo, Lee Pharma,

1 8941

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Un-Answered Questions { Analytical Chemistry }

How require to perform linearity as per ANVISA? What are the acceptance criteria?

1285

What is control room temperature and which guide line says?

1593

What is the purpose of octyl silane columns?

4258

What is the difference between spectro meter and spectro photo meter?

11379

please explian me about area normalisation method,diluted standard method,impurity vs impurity and which one has to be selected in method development

1590

Which is the highly polar and highly non polar column in HPLC?

2255

How to establish relative response factor for hplc. Why it is required?

1164

cefoperozone and sulbactam inj. hplc test method

2657

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

3348

For limit test of heavy metals in BP, Method C require that the substance is ignited at a temperature not exceeding 800 °C. Why confines such the temperature?

4025

how require to select dissolution media? what is discrimination?

759

mahagenco syllabus for the post of chemist

6439

In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

2188

what is third integration

1936

In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

3438

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