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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is lod and loq

3 11612

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 ?

Wockhardt,

3669

What is the b/W dead volume and dwell volume ?

2 14519

why r u using hplc grade solvents

4 12908

Why do we use sodium salicylate for Calibration TLC Cabinet U.V Lamps

Matrix, Spar Labs,

3 24737

How do you show that equal quanitities of two isomers provide the same response using a PDA

1 6294

what is GLP? Which industries it requried?

Aurobindo, AXIS Clinicals, GVK,

1 12538

How can we separate Urea & semicarbazide in single HPLC method ?

2 7281

What is the calibration procedure for Malvern MS2000 particle size analyzer and acceptance criteria?

Reddy Labs,

2 6106

why we can use only 4 and 7 and 9 buffers in pH calibration

Chola, Cipla,

1 5340

How to do regeneration of Metacarb Pb plus column?

2580

we calibrate HPLC once in 6 months while iam doing calibration i came to know that calibration was failed. then how can i justify that the samples analyzed on the system during this 6 months was wright? how can i forward in to the next step for those batches?

5 12780

What is the solvent/material used to balance spirit level in analytical balance?

Glenmark, MMC Health Care,

5 13734

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 6330

why do we use around only 60 mg of K2cr2o7 in the UV calibration -control of absorbance test?

Reddy Labs,

3 14381


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

in dissolution if one bowl got 70 percent 2nd bowl got 80 percent and 3rd bowl got 90 percent then how proceed?

752


Why perchloric acid used for potentiometric titration

2684


how require to set assay concentration for standard and sample?

922


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

1162


Basic principle of ESI?

2151


why require the ph, buffer during hplc mobile phase?

862


Difference between hlaf and rlaf

2110


how require to interprit the method precision data of hptlc?

821


what is mean by ambient temperature?

916


What is aggregate and fragments in SEC?

2114


How to fix the sample conc. in Related substances test by HPLC?

1097


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 ?

3669


In performance Check of GC Why Hexadecane Peak is Considered 

3045


why multimedia dissolution require to do?

830


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

2709