Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is full form of RVT

1 9232

Defination of ZEEMAN EFFECT in NMR ?

2 4357

what is MCG dilution in HPLC & GC analysis

Cipla, Amoli Organics,

1 6600




what is difference between GC & GC-HS

9 26579

which brands GC coloumn available in market

4 6092

why linerity not use in GC but use in HPLC ?

6 9549

How to decide restandardisation due or retest or expiry of Volumetric solutions prepared in wet chemistry lab?

NCL,

6 19317

How to interpret XRD graphs against standard and limit for same?

NCL,

3 6354




Difference between c18

Dr Reddys, Intas, Torrent Pharma, Apothecon, IPQA, SUN,

6 44361

principle of UV , PDA , RI detector in HPLC

Dr Reddys,

6956

mahagenco syllabus for the post of chemist

MahaGenco, Unimarck Pharma,

4818

What is post run in hplc?

Cipla,

1 11008

Tell me something about Vitamin A test method by HPLC

Lupin,

1257

How to choose Normal phase or Reverse Phase HPLC method Conditions for given sample?

PharmaZell,

3 9838

why the most API molecule are in the hydrochloride form?

1 7091


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Un-Answered Questions { Analytical Chemistry }

How to choose concentration of LOQ solutions for RS analysis? Example.

658


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.

796


How would you decide dissolution medium for NCE compound of class I drug

630


why octanol used to determine the partition coefficient ?

896


What is diffrence between extractable volume and deliverable volume? Answer pls

496






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

1745


What is third generation HPLC Columns?

598


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.

927


explain 5 components of gas chromatography ?

563


Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?

476


pharma industries oriented

749


How do we get end points and how many end points are possible for citric acid and di-acid not theorotically answer should be given practically.

1134


i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

1350


how can delete the impurity in 1-(2:6 dichloro phenyl)-2-indolenone.and desolving the impurity in which solvent but does not desolve product in solvent.

1102


how can I make the copper get white bye any salt or acit?

915