Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

How do you verify the primary,secondary and tertiary amines by IR-Spectroscopy.

GVK,

2 14586

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

GSK GlaxoSmithKline,

2625

how PH an important role in HPLC separation

3 12837




HOw do i calculate the number of theoretical plate on a HPLC chromatography

Laurus,

2 15501

How we can analysed unknown sample by hplc....

Archimedes,

2 8684

Why the same type of columns showing different RT for a single product?

6 9003

Shall i use a same hplc column for two different products.?

3 6203

What is the difference between low pressure gredient and high pressure gredient in hplc instrument?

4 9454




why did uyou choose analytical chemistry?

1 1969

how much you expected salary?

GSK GlaxoSmithKline,

7 14376

what is karl fischer principle and reaction ,describe it

Jubilant Organosys, Microsoft,

5 28623

Is it compulsory to prepare KBr disc with sample in identification test by FTIR?

2 6853

If we are getting split peak in Chromatogram,what we can do?

7 12150

Generally for Normal Phase HPLC,stationary phase is Polar.In place of polar if we take non-polar means what happened & why?

Macleods,

7 9828

what is peak purity ??

Cipla, Zyg Pharma,

10 54749


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Un-Answered Questions { Analytical Chemistry }

Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?

1517


What is viod volume and peak purity in HPLC?

1433


Why a1% value is used for some product ? What is the criteria for selection a1% value ?

1019


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

1431


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

1030






What is gelatinization?

456


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

8616


How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.

1076


Why potassium dichromate is used in calibration of uv?

379


What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

1373


Did anybody have method for acetyl cysteine effervescnce tablet

933


In Dissolution Test why limit is define Q+5% what is the role of +5%.

1565


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

1336


if you have given a blank water how you analyse by general analytical techniques?

771


what is the disso medium for tropsiun chloride

969