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

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 8101

how v can identify functional groups by wet techniques?

2 5243

What is the difference in OVI and Residual solvents?

Discovery Intermediates,

3 14356

what is the method of UV cabinet CALIBRTION

2 14354

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

Sharp,

2358

why IR graph or spectra comes down ? Any reason

4 17158

what is partion and column chromatography

Emcure,

2302

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

Emmennar, Neuland,

3 15061

How to establish pKa for a new API molecule ?

Neuland, Sun Pharma,

2 11633

why we are adjusting the ph in buffer solution preparation

2 12520

what is the film thickness in ftir

8 15548

what is the principle of assay of sodium nitrite?

2 10482

why required specificity in valdation

3 8769

why we are analyzing purity on HPLC why not in gc

Aurobindo, Reddy Labs,

3 14320

whate is difference between calibration and validation

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

11 52131

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Un-Answered Questions { Analytical Chemistry }

Why use only methanol,used determinationof moisture content not use other solvents

1362

In performance Check of GC Why Hexadecane Peak is Considered

2989

identification is for unknown? qualification for known? reporting for LOQ?

671

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

1086

give clarity of linearity and range in method validation

2383

Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

2900

what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?

840

How to set analyticl specification for combination products?

689

if identification threshold crosses the limits then what next step?

801

Why only 1.2 million lux hours require in photostability study?

964

What is control room temperature and which guide line says?

1582

How you develop a method in HPLC?

2565

what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?

2232

In which situation we require to analytical method validation of excipient?

735

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

3823

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