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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is lod and loq

3 11610

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,

3668

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

2 14519

why r u using hplc grade solvents

4 12906

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

Matrix, Spar Labs,

3 24730

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

1 6292

what is GLP? Which industries it requried?

Aurobindo, AXIS Clinicals, GVK,

1 12534

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

2 7277

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

Reddy Labs,

2 6104

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 12779

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

Glenmark, MMC Health Care,

5 13730

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 14377


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

Did anybody have method for acetyl cysteine effervescnce tablet

2253


In rs method development when we are going area normalization method to dilute standard method?

1521


what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me

2682


how we can identify the impurity is coming below loq at transfering site?

872


How to set analytical specification for combination products?

818


if you have given a blank water how you analyse by general analytical techniques?

2031


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.

2584


What is gelatinization?

1618


How to calculate coreletion coefficient

1713


How to start the dissolution development for unknown tab?

1679


what is procedure of actual procedure for registration of drug?

2012


for inorganic molecules require to do RS, Assay and disso?

733


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

2752


Tell me about analytical method validation in QC

6181


[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?

795