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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is the defination of calibration & verification?

Divis Laboratories,

9 23893

what is specificity?

Amneal Pharmaceuticals, Aurobindo,

4 10411

why we use only vanilline , acetanilide,& caffeine For the Calibration of melting point appartus?

Reddy Labs,

7 25011

who is the father modern liqiud chromatogrphy?

Amneal Pharmaceuticals, Car Chem, Cipla,

3 10776

what is the meaning of ventillation in HPLC?

Amneal Pharmaceuticals,

3 10996

which solvent is highest poler acetonitrile dimethyl formamide methanole tetrahydrofurane buffer solution

8 10986

what is the difference betwen the analytical column & peparative column?

4 11695

why we conclude the area% for the chromatographic purity?

Amneal Pharmaceuticals, Lupin,

1 6004

what is the general mechanism of high performance liqiud chromatography?

Ajanta Pharma, Amneal Pharmaceuticals,

7 14053

why 2Theta value is consider in the XRPD spectra and how to consider the 2 Theta value

2 6397

why we wre doing linearity siudiec in hplc method validation

Cipla,

3 20347

what does optical rotation and specific rotataion means,difference between them

CPL, Neuland,

8 28541

what is regration method in method validation , how we can calculate it.

Cipla, Sun Pharma,

3 9305

viod volume and dead time

Oxygen Healthcare,

7 16173

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

1704


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Un-Answered Questions { Analytical Chemistry }

Why dissolution test is not performed in all of the products

1540


We use Potassium Dichromate solution for the calibration of UV-Visible Spectrophotometer in UV region. My question is to calibrate visible region which solution could be used in photometric accuracy

608


what is turbidimetric titration?Give 2 examples.

1423


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 ?

2491


What are modes of quantification in related substances

1217






what is the extinction coefficient for Indomethacin or at 319nm wave length.

2918


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

1704


what is the principle involved in turbidometry and nephelometry ?

3051


What is delay volume?

191


How do we fix the sample concentaryion in hplc method development. What is the basis?

184


UV and PDA detector, which have less signal to noise ratio?

113


why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

1270


In HPLC (Waters) software Empower1,2 &3 what is the updation for each version

1782


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

1824


what is third integration

1054