Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

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

GVK,

2 14032

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

GSK GlaxoSmithKline,

2495

how PH an important role in HPLC separation

3 12251




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

Laurus,

2 14960

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

Archimedes,

2 8392

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

6 8544

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

3 5911

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

3 8871




why did uyou choose analytical chemistry?

1 1804

how much you expected salary?

GSK GlaxoSmithKline,

7 13952

what is karl fischer principle and reaction ,describe it

Microsoft, Jubilant Organosys,

5 27151

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

2 6607

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

7 11533

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

Macleods,

7 9374

what is peak purity ??

Cipla, Zyg Pharma,

10 53278


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Un-Answered Questions { Analytical Chemistry }

What are modes of quantification in related substances

838


Why to use propyl paraben in HPLC gradient calibration

295


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

1276


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

887


what type of questions asked on analytical balance and also give answers................all pharma companies?

5711






why we use Dichlorobenzene.nitrobezine.t-butyldi sulhate.for calibration of gc Head space

880


can i use hplc detector to uplc and why?

891


i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

1371


some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?

1105


Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

1177


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

1059


How can we calculate "confidence interval" in analytical method validation? Pl. explain with example.

2361


WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

996


Dear sir, This is R.Kadambavadani working in a pharma industry. while doing RS analysis of ibuprofen API, unknown peak eluting some times in the 0.6 Min RT. Kindly send me what is the exact reason behind that. also am using ACN the mobile phase.

236


what is definition of validation? which components are followed give detail?

841