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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

solvents used in NMR

Laurus,

2 7306

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

Laurus,

2435

define beer-lambertslaw.

Laurus,

5 14049

difference between precision & accuracy.

Laurus,

1 11110

formula for %RSD.

Laurus,

4 15162

which chromatographic technique is used for softening hard water?

Laurus,

1 6884

Nitrogen test is used for which chromatography?

Laurus,

1 8013

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

Laurus,

2 9237

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

Laurus,

2221

mode of absorption in alimentary canal?

Sun Pharma,

2390

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

Apotex, UPL,

5 21471

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

4 12851

when we use capillary and packed columns in gc

Rakshit Drugs,

4 10648

what is the difference between IR and FTIR instrument analysis

2 13024

how can give the expiry period and restadardisation of volumetric solution

Meenaxy Pharma, SRF,

2595


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

What is the requirement for brazil in the analytical method vslidation comparr to ich?

782


before starting analytical method valodation what you checking? and how giving preference to start validation?

806


What are the primary considerations in extractables and Leachables ?

2276


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

4268


how pda detector works over uv?

742


If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?

772


Identify problem faced when mass spectroscopy is used with HPLC system ?

1862


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

3243


if your impurity coeluting with each other in that situation how require to set specification? is it acceptable?

978


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

2728


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

6070


Tell me about analytical method validation in QC

6181


how will you do the prep for unstable componds?

2025


What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

1898


How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?

734