Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is the defination of calibration & verification?

Divis Laboratories,

9 21072

what is specificity?

Amneal Pharmaceuticals, Aurobindo,

4 8810

why we use only vanilline , acetanilide,& caffeine For the Calibration of melting point appartus?

Reddy Labs,

7 20493




who is the father modern liqiud chromatogrphy?

Cipla, Amneal Pharmaceuticals, Car Chem,

3 9348

what is the meaning of ventillation in HPLC?

Amneal Pharmaceuticals,

3 9766

which solvent is highest poler acetonitrile dimethyl formamide methanole tetrahydrofurane buffer solution

8 9135

what is the difference betwen the analytical column & peparative column?

4 10367

why we conclude the area% for the chromatographic purity?

Lupin, Amneal Pharmaceuticals,

1 4706




what is the general mechanism of high performance liqiud chromatography?

Amneal Pharmaceuticals, Ajanta Pharma,

7 12579

why 2Theta value is consider in the XRPD spectra and how to consider the 2 Theta value

2 5700

why we wre doing linearity siudiec in hplc method validation

Cipla,

3 17607

what does optical rotation and specific rotataion means,difference between them

Neuland, CPL,

8 25435

what is regration method in method validation , how we can calculate it.

Sun Pharma, Cipla,

3 7950

viod volume and dead time

Oxygen Healthcare,

7 13612

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

1406


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Un-Answered Questions { Analytical Chemistry }

How to decide assay range for non pharmacopeial API analysis by HPLC? Could you give me any reference for same e.g Guidelines or Paper publications?

1843


What are modes of quantification in related substances

869


how the compound separate in coulunm,explain

1000


WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

1353


What is Band broading effect explain

539






for heavy metal test lead used in which form pure form or any other form for preparation of lead standard sol

3556


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

704


iam usig ph buffers merk. manually how to prepare ?

969


In Karl Fischer titration,What is the situation if the material tested is only soluble in water,and not soluble in the common solvents used such as methanol ?? [e.g. Iron III Hydroxide polymaltose]

1474


For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?

857


WHICH STANDARD WE USE IN SILICA ANALYSIS IN SILICA-GEL METHOD FOR SOLID SAMPLE

845


Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

845


about method developement in hplc

374


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

1045


what is the importence and role of LCMS and LCMS/MS and their applications? which type of compounds are analysis by lcms?

2277