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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

solvents used in NMR

Laurus,

2 5354

what does 'n' stands for in spectroscopy?give the formula.

Laurus,

1554

define beer-lambertslaw.

Laurus,

5 10328

difference between precision & accuracy.

Laurus,

1 9491

formula for %RSD.

Laurus,

4 11927

which chromatographic technique is used for softening hard water?

Laurus,

1 5326

Nitrogen test is used for which chromatography?

Laurus,

1 5882

what are the primary standards of redox titrations?Name any two.

Laurus,

2 7302

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

Laurus,

1416

mode of absorption in alimentary canal?

Sun Pharma,

1559

why we calibrate ph meter and balance daily.....but hplc and uv requires quaterly?

Apotex, UPL,

5 17289

why we are use metthanol variously in kfr?why don't use other solutions?

4 9747

when we use capillary and packed columns in gc

Rakshit Drugs,

4 7445

what is the difference between IR and FTIR instrument analysis

2 10480

how can give the expiry period and restadardisation of volumetric solution

Meenaxy Pharma, SRF,

1689


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Un-Answered Questions { Analytical Chemistry }

How do we fix the sample concentaryion in hplc method development. What is the basis?

292


what is the difference between potentiometric titration and karl fischer titration?

1806


What is the calibration of uv process and preparation

1137


Many times I don't got a caffeine peak in calibration of hplc using guard column ❓

733


Please tell me about the pH of Polycaboxylic ether is it in the 5-6 range ever or more than 6

1746






While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

1727


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

1557


Why to use propyl paraben in HPLC gradient calibration

3479


what is partion and column chromatography

1432


how to calibrate hplc & gc

3572


how will you do the prep for unstable componds?

1070


Why dissolution test is not performed in all of the products

1648


iam usig ph buffers merk. manually how to prepare ?

1335


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

1354


1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

735