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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why water content test performed

1 4586

What is peak purity and response factor in chromatographic analysis? Why we required to find out response factor?

2 5249

What are modes of quantification in related substances

Hospira,

1300

what is the source of ir spectroscopy

CTX Life Sciences, Mylan,

2 5362

Difference Between End Cap HPLC Column and Non End Cap Column

2 10950

Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

Petronas, Shanghai Ocean University,

1039

How would you decide dissolution medium for NCE compound of class I drug

1166

What is the principle of hplc detectors like.. UV detector,flurosence detector, RID?

Cipla,

1740

What is the principle of Thermal conductivity detector and FID?

Cipla,

1868

why 6 tablets use for dissolution

Cadila, IPCA, SUN, Teva Pharmaceuticals,

1 2801

What is the limit of minimum area in in hplc RS anlysis

Lupin,

1 3749

how many types oos and oot

1 3082

what is icdas abbrivation

1 3342

Why should we use Potassium iodide and Hydrochloric acid during preparation of Iodine Molar solution?

1 2418

How can you calculate manually "Slope" in pH calibration?

Hetero,

2 17018


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Un-Answered Questions { Analytical Chemistry }

about method developement in hplc

836


acceptance criteria for lod & loq by standard deviation of response and slope??

1605


How to do regeneration of Metacarb Pb plus column?

1701


what is turbidimetric titration?Give 2 examples.

1513


Tell me about analytical method validation in QC

3541






Why we use potassium dichromate in uv calibration Exact reason behind it??

206




1436


How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

1548


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

710


are there in uv lamb that is chractrestic for wavelenghth 205 nm ?????

1077


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

1215


In performance Check of GC Why Hexadecane Peak is Considered 

2176


what is peak purity and its formula

678


Why acetonitrile and water are used as extraction solvent when analysis melamine? I thought they are miscible and won't be able to separate...

725


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

1388