Analytical Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

what is lod and loq

3 11761

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,

3727

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

2 14632

why r u using hplc grade solvents

4 13100

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

Matrix, Spar Labs,

3 24873

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

1 6378

what is GLP? Which industries it requried?

Aurobindo, AXIS Clinicals, GVK,

1 12611

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

2 7378

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

Reddy Labs,

2 6200

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

Chola, Cipla,

1 5442

How to do regeneration of Metacarb Pb plus column?

2611

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 12954

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

Glenmark, MMC Health Care,

5 13912

why plane of polarized light rotated by opticaly active compunds?

Glenmark,

1 6408

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

Reddy Labs,

3 14551

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Un-Answered Questions { Analytical Chemistry }

What is control room temperature and which guide line says?

1698

mahagenco syllabus for the post of chemist

6516

how you start RS method development when for new product?

780

what is the difference between potentiometric titration and karl fischer titration?

3260

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

5304

How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?

792

Why we select scan range from higer wavelength to lower wavelength in uv visible spectroscopy and ftir spectroscopy ? .

983

Why irmoisture balance is used for corrugated box moisture testing

2452

What is the acceptance criteria for moisture balance when calibrated with sodium sulfate

2091

Why a1% value is used for some product ? What is the criteria for selection a1% value ?

2396

AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?

2114

Loss of linearity in tkn analysis, possible reasons?

1366

How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium

2616

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

1178

what is the importance of peak purity in HPLC and how we can calculate through manul(not software)?

4538

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