Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why urasil use in hplc column perfomance?

Bayer,

1 7506

how do you perform reverse enginearing study for drug containing sodium chloride sodium citrate sodium bicarbonate

Strides,

1 3562

How will u perform degradation study in detectors other thann PDA in HPLC Methodology

Adley, Micro Labs,

2014

WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY

2096

what is the working priniciple of ph, what are parts in ph meter

1 9177

why using the ph 4,7,9.2?

SRF,

1 5243

What is Temperature ?

Reddy Labs,

2 9565

What is the column performance and column efficiency?

Reddy Labs,

1 10245

why we are using in ph calibrations ph4,7,9.2 buuffers only?

Reddy Labs, Unichem,

3 16408

Is it necessary to validate both assay and related substances for usp official methods for products.

Apotex,

6 11843

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

Dr Reddys, Indoco Remedies, Natco,

2265

IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?

Reddy Labs,

1979

what is the difference between lod and loq?

Apotex, Aurobindo,

4 35001

What should be the level/ Percentage of Arsenic in Arsenic free zinc.

FDC, Laurus, Pharmaceutical,

1756

What is the exact reason to use THF and IPA in buffers of Reverse phase HPLC as a solvent?

Dr Reddys,

1 4117


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

2128


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

1622


In the isomers,enantiomers give the only physical properties present such that no chemical properties present.

1771


What is the use of tlc and hplc? And when and where use?

659


Tell me about analytical method validation in QC

5544






how you start the solubility study?

340


what is biorelivent dissolution media?

300


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

2182


From where require to take the RLD sample?

272


which are the sizes of capsules?

402


If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

1751


Why we check moisture,ash & AIA in product

1397


How can I develope method of dissolution by HPLC OR UV

1891


what is lod and loq ?,why use k2cr2o7 , kcl h2so4 in uv calibration ?,why use benzophenone & caffene acetone in hplc calibration ?,what is leading peak in hplc ?why we do the calibration of limit of stry light in hplc & uv ?

3180


for which product require to do content uniformity? what is limit of cu?

304