Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

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

GVK,

2 14232

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

GSK GlaxoSmithKline,

2531

how PH an important role in HPLC separation

3 12484




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

Laurus,

2 15177

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

Archimedes,

2 8506

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

6 8693

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

3 6001

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

3 9060




why did uyou choose analytical chemistry?

1 1862

how much you expected salary?

GSK GlaxoSmithKline,

7 14080

what is karl fischer principle and reaction ,describe it

Microsoft, Jubilant Organosys,

5 27751

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

2 6681

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

7 11739

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

Macleods,

7 9520

what is peak purity ??

Cipla, Zyg Pharma,

10 53823


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Un-Answered Questions { Analytical Chemistry }

How can we calculate offset value pH measurment

185


Why we check moisture,ash & AIA in product

456


Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

845


What is intact assay method development.....?

1102


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

965






Why potassium dichromate was using in Uv calibration?

345


How much is the standard area for glc analysis

913


give clarity of linearity and range in method validation

929


What should be the level/ Percentage of Arsenic in Arsenic free zinc.

1011


why does used dry caffien in HPLC calibration?

564


Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

975


what is difference between zero air gas and o2 gas

6071


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

990


If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

940


for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

3556