Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

solvents used in NMR

Laurus,

2 4294

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

Laurus,

1015

define beer-lambertslaw.

Laurus,

5 8532




difference between precision & accuracy.

Laurus,

1 8058

formula for %RSD.

Laurus,

4 9983

which chromatographic technique is used for softening hard water?

Laurus,

1 4493

Nitrogen test is used for which chromatography?

Laurus,

1 4767

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

Laurus,

2 6017




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

Laurus,

879

mode of absorption in alimentary canal?

Sun Pharma,

1068

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

Apotex, UPL,

5 13866

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

4 7595

when we use capillary and packed columns in gc

Rakshit Drugs,

4 5813

what is the difference between IR and FTIR instrument analysis

2 7941

how can give the expiry period and restadardisation of volumetric solution

Meenaxy Pharma, SRF,

1209


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Un-Answered Questions { Analytical Chemistry }

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

3425


How would you decide dissolution medium for NCE compound of class I drug

631


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

860


Tell me about analytical method validation in QC

1440


How will u perform degradation study in detectors other thann PDA in HPLC Methodology

1164






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

1241


What is the principle of HPLC, GC, LCMS, GCMS,LC QQQ, GC QQQ, LC Q TOF and GC Q TOF. What are the applications and Specificity?

5471


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

1370


What is the calibration of uv process and preparation

592


why are measure gas flow " ml " in Gas chromatography

247


how much mass should be there in volumetric flask while in preparation of sample for assay? 

1063


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 ?

1074


WHAT IS DIFFERENCE B/W MALTINGRANG/DSC

1068


what is DIPE limit in residual solvent?

340


wat is the role of michelson interferometer in FTIR and He-Ne lase.detailed answer required in simple language

990