Analytical Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

How can we detect a compound in hplc which does not have any chromofore?

1 2465

What is similarity factor?

1206

What is the difference between the working standard and reference standard?

1 2188

WHAT IS THE PARAMETER FOR THE SELECTION OF MOBILE PHASE IN HPLC?

1188

CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1210

How to do spike of aflatoxin in peanut to get maximum recovery

1135

How to fix the sample conc. in Related substances test by HPLC?

1097

What is the limit for single maximum impurity limit as per USP??

1 2001

Why we use potassium dichromate in uv calibration Exact reason behind it??

1259

UV and PDA detector, which have less signal to noise ratio?

1132

Difference between the quantitative analysis and qualitative analysis?

1180

What is related substance by HPLC impurity limits as per USP?

1107

What is a difference between potency and purity?

1221

Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .

911

In the HPLC Calibration done wavelength accuracy done between 200nm-280nm .but not done remaining 300-400nm not done ?

926

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Un-Answered Questions { Analytical Chemistry }

in api coa contains only process impurities and in product coa contains degradation impurities?

701

why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

9798

how you start the solubility study?

827

How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?

3864

effect of pore size, pore volume, partical size, column length, carbon load on retention time? what is carbon load? what is the use?

927

what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

2684

how we can identify the impurity is coming below loq at transfering site?

873

what is procedure of actual procedure for registration of drug?

2012

What is third generation HPLC Columns?

1981

why we are using benzene, anyline in acetic anhdride assay titration method?

2115

in which situation require to take incident in validation?

1727

why salisylic acid not using now days for disdolution calibration?

772

in sampling of raw material which side is pasted sampled labels

1838

We use hicrome 10 cxs column in hplc analysis....pls tell me.. what is the meaning of 10 cxs?

1719

What is gelatinization?

1618

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