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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is lod and loq

3 9032

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,

2596

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

2 12335

why r u using hplc grade solvents

4 9818

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

Matrix, Spar Labs,

3 18175

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

1 4471

what is GLP? Which industries it requried?

Aurobindo, AXIS Clinicals, GVK,

1 10722

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

2 5237

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

Reddy Labs,

2 3880

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

Chola, Cipla,

1 3680

How to do regeneration of Metacarb Pb plus column?

1701

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 9750

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

Glenmark, MMC Health Care,

4 9887

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 4895

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

Reddy Labs,

3 11695


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Un-Answered Questions { Analytical Chemistry }

what is partion and column chromatography

1416


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.

1566


Many times I don't got a caffeine peak in calibration of hplc using guard column ❓

710


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

1789


what is %labelled amount in content uniformity of dosage unit and its calculation?

4114






How we can determine water content in piperazine

1332


why equlirium conatant of water have 14 value

1315


Principle of single pan analytical balance

4171


Why irmoisture balance is used for corrugated box moisture testing

1474


about method developement in hplc

836


CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

272


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

1868


what is definition of validation? which components are followed give detail?

1349


how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

1519


how to calculate corelation coefficient in G.C Calibration? what is the calculation part?

1388