Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

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

GVK,

2 13825

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

GSK GlaxoSmithKline,

2448

how PH an important role in HPLC separation

3 12045




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

Laurus,

2 14777

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

Archimedes,

2 8272

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

6 8396

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

3 5787

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

3 8673




why did uyou choose analytical chemistry?

1 1743

how much you expected salary?

GSK GlaxoSmithKline,

7 13772

what is karl fischer principle and reaction ,describe it

Microsoft, Jubilant Organosys,

5 26254

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

2 6524

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

7 11349

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

Macleods,

7 9219

what is peak purity ??

Cipla, Zyg Pharma,

10 52661


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Un-Answered Questions { Analytical Chemistry }

in dissolution why pool sample needed? in which type of drug pool sample need?

1745


Colorimtry

143


why we use a particular hplc column for a particular compound give reasons?please

1414


What is column in chromatography?

723


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

2114






What is control room temperature and which guide line says?

251


What is the calibration of uv process and preparation

592


which one is better separation in high pressure liquide chromatogram orlowpressure chromato gram in hplc

858


How can I develope method of dissolution by HPLC OR UV

878


What are modes of quantification in related substances

800


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

848


pda detector mechanism?

929


We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

6


How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

860


Why irmoisture balance is used for corrugated box moisture testing

966