Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is the difference between Chromatograhic Purity And Related substances

Cipla,

10 45151

what is the difference between M.C and LOD

Matrix, Aurobindo, Synthokem Labs, Cipla, Laurus,

21 50325

what is the lamp used in SOR?

Aurobindo,

18 19742




What is the difference between Capillary column and Packed column.

Cipla, Sun Pharma, Hetero, Supreme Petrochem,

7 58804

whai is primary standard?

10 13506

what is the value of pH

Reddy Labs,

11 15473

what is method development parameter in HPLC method development

GVK,

6 37071

How to calculate LOD & LOQ in HPLC Validation Method

Reddy Labs, Reliance, Dr Reddys, GSK GlaxoSmithKline, UIS,

14 93491




Why forced Digradition Study is done

6 8736

What is reaction takes place when water content analysis is done

2 7757

How are PDA Detector work in HPLC

Agilent,

7 32761

what is the differnce between GMP and CGMP

Shilpa Medicare,

7 30842

what is a drug?

Aurobindo,

11 12944

What is the purpose of performing dissolution test on routine basis?

3 6704

why in uv we take k value less than 1

2 7942


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Un-Answered Questions { Analytical Chemistry }

what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

6330


How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.

1095


why are measure gas flow " ml " in Gas chromatography

447


what is the structure of DOWEX-50

3815


Why perchloric acid used for potentiometric titration

1388






what type of question will ask in the interview of lab chemist.

2180


using gradient pressure in gas chromatography are not ?using gradient pressure why

2187


What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

5614


how can give the expiry period and restadardisation of volumetric solution

1367


2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.

952


In Dissolution Test why limit is define Q+5% what is the role of +5%.

1617


What is the formula to determine the concentration of M of a solution given the % transmittance? Use %T = 43.7 as an example.

1389


While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

1130


What is the calibration of uv process and preparation

781


What is the main difference between ODS1 and ODS2 Hplc column.

2146