Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

how to prepare solution in ppb

6 18339

how to prepare low ppm solution from high ppm solution ?

1 9337

wt is difference between assay and purity in hplc?

Hetero, IDRS Labs,

9 86286

difference between AAS & flame photo meter ?

3 35827

how to calibrate AAS ? give me the procedure?

3 14074

why peak purity not considered in GC?

DRL, Reddy Labs, Vimta Labs,

4 16355

from compund pka value how to select buffer and column?

Emcure, Zydus Cadila,

2 9087

what is Beer Lambert low ?

MAN,

8 15882

principle of AAS & its uses ?

Auriga,

1 4733

how ir specrometer is calibrated ?

1 5449

what is pKa ?

Dr Reddys, Shasun Chemicals,

10 19651

How you can calculate pKa ?

Dr Reddys,

6 16900

what buffer you can select for acidic nature analyte and how ?

Dr Reddys,

2 12801

What is Specificity ?

Dr Reddys,

8 14008

Whya the need of Specificity to do in Analytical Method Validation ?

Dr Reddys,

5 13788


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Un-Answered Questions { Analytical Chemistry }

cefoperozone and sulbactam inj. hplc test method

2113


In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

2944


How much is the standard area for glc analysis

1735


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

2263


What is the requirement for brazil in the analytical method vslidation comparr to ich?

262






in hplc chromatogram started from left to right and in uv spectrum started from left to right

457


if tech transfer fails whay require to do?

320


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

240


How to know the estimated LOQ concentration in ppm

721


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 ?

3168


How to calibration of the uv spectroscopy and its test?

655


what is mean by covalidation

306


why digestion require in icpms?

292


Why to use propyl paraben in HPLC gradient calibration

6056


Which parameter require to do for analytical method equivalency?

307