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 5965

how v can identify functional groups by wet techniques?

2 2476

What is the difference in OVI and Residual solvents?

Discovery Intermediates,

3 10525




what is the method of UV cabinet CALIBRTION

2 10824

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

Sharp,

1216

why IR graph or spectra comes down ? Any reason

4 12645

what is partion and column chromatography

Emcure,

1159

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

Neuland, Emmennar,

3 11193




How to establish pKa for a new API molecule ?

Neuland, Sun Pharma,

2 8404

why we are adjusting the ph in buffer solution preparation

2 9429

what is the film thickness in ftir

8 8814

what is the principle of assay of sodium nitrite?

2 7834

why required specificity in valdation

3 5530

why we are analyzing purity on HPLC why not in gc

Reddy Labs, Aurobindo,

3 10937

whate is difference between calibration and validation

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

11 41637


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Un-Answered Questions { Analytical Chemistry }

why equlirium conatant of water have 14 value

1051


AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

964


what is the principle involved in turbidometry and nephelometry ?

2792


please explain about aluminium hydroxide assay

45


Why we check moisture,ash & AIA in product

675






Which is the highly polar and highly non polar column in HPLC?

953


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

1076


what is the disso medium for tropsiun chloride

1049


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

1603


How you develop a method in HPLC?

1428


What is the exact reason to use THF and IPA in buffers of Reverse phase HPLC as a solvent?

2803


can i use hplc detector to uplc and why?

1113


What is rs test why we are performing rs test?

12


what is partion and column chromatography

1159


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

1362