Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

Plz explain the formula in uv calibration =Absorbance of the sample ( x ) x 10 x 1000/Weight of potassium dichromate taken in mg

1 5684

how v can identify functional groups by wet techniques?

2 2135

What is the difference in OVI and Residual solvents?

Discovery Intermediates,

3 9905




what is the method of UV cabinet CALIBRTION

2 10045

WHAT IS THE USE OF STARTER ?????????

Sharp,

1133

why IR graph or spectra comes down ? Any reason

3 12146

what is partion and column chromatography

Emcure,

1079

What is the difference between the optics of UV and PDA Detectors ?

Neuland, Emmennar,

3 10619




How to establish pKa for a new API molecule ?

Neuland, Sun Pharma,

2 8020

why we are adjusting the ph in buffer solution preparation

2 8955

what is the film thickness in ftir

8 8301

what is the principle of assay of sodium nitrite?

2 7483

why required specificity in valdation

3 5205

why we are analyzing purity on HPLC why not in gc

Reddy Labs, Aurobindo,

3 10530

whate is difference between calibration and validation

Ranbaxy, Zydus Cadila, Cipla, Alkem Labs, Torrent Pharma,

11 40313


Post New Analytical Chemistry Questions






Un-Answered Questions { Analytical Chemistry }

How to do regeneration of Metacarb Pb plus column?

1307


in dissolution why pool sample needed? in which type of drug pool sample need?

1881


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

1512


What is AV value in test uniformity content ,describe calculation

260


what is the limit for KF Factor ,we take factor using water we will found factor between 6 to 7 ,while on KF Reagent bottle mentioned 5 mg/ml water content.if we not use dried methanol it is effect on factor.

750






what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.

1119


What is the acceptance criteria for moisture balance when calibrated with sodium sulfate

748


What is the diference between residual solvents and organic volatile matter

738


In dissolution of tablets/capsules elaborate the Dissolution limit 20.0% to 60% Q in 30 minutes.

775


What is importance of pH in the Heavy metal test and How it effect on the test results?

1002


What is the Formula for coreletion coefficient in plhplc calibration

194


How can the GC or HPLC method is selected to determine the impurity profile in drug product?

5514


why we use a particular hplc column for a particular compound give reasons?please

1558


why glutent are detected in the rice cereal baby food product even manufacturer claimed that they are using rice and milk only?we have using ELISA to do the test,and rice supposed not containing any glutent,rite?We already repeat the test so many times and it still detected.just wondering where the glutent came from?

1338


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

1226