Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why sucrose is used for polarimeter calibration

4 30259

why 0.005 M sulphuric acid is used to calbrate spectrophotometer and why caffiene is used for calibrating hplc

Torrent Pharma, GVK,

2 15774

why we use caffeine for hplc calibration?

5 15150

what is polarity and how to calculate

Reddy Labs,

2 8462

How to calculate the maximum loaded sample concentration in HPLC column?

2 7524

What is the difference between HPLC and GC?

3 15168

Why linearity of detector performed in HPLC calibration

Cipla, Intas,

2 11016

how to start the method development of Dissolution and related substances.


1 8332

what is the criteria for choosing capillary column in GC??is it dependent on sample load?

2 4418

When we calculate Impurity against impurity std.solution and when we calculate impurity against diluted standard with applying RRF?

Torrent Pharma,

2 7771

What is discriminating media? How can u justify/select that which media (pH etc...)is suitable for your dissolution study of your compound?

Natco, SUN,

5 21044

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



How can I develope method of dissolution by HPLC OR UV


Give me details about dissolution , with name ?


1 1461

As per USP what is RSD limit of volumteric solution of three replicate analysis


10 15734

Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

How to choose the which salt is suitable for mobilephase


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


Explain the relations between number of carbon atoms in alkanes and retention time ?


what is the purge flow & how to calculate



what is the disso medium for tropsiun chloride


how to get accurate result for Residue on evaporation in purified water


4. Describe the operation of the Craig apparatus. Chapter.3 Equilibrium Processes in Separations


why we use a particular hplc column for a particular compound give reasons?please


Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18


mahagenco syllabus for the post of chemist


Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?


Did anybody have method for acetyl cysteine effervescnce tablet


why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?


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