Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why water content test performed

1 3438

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

2 3627

What are modes of quantification in related substances

Hospira,

838




what is the source of ir spectroscopy

Mylan, CTX Life Sciences,

2 4243

Difference Between End Cap HPLC Column and Non End Cap Column

2 7822

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,

606

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

664

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

Cipla,

1179




What is the principle of Thermal conductivity detector and FID?

Cipla,

1353

why 6 tablets use for dissolution

Teva Pharmaceuticals, Cadila, IPCA, SUN,

1806

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

Lupin,

1 2428

how many types oos and oot

1 1602

what is icdas abbrivation

1 1798

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

1 1630

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

Hetero,

2 10589


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Un-Answered Questions { Analytical Chemistry }

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

2495


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

794


WHY given much noise PDA dector then VWD Dector

609


What are the primary considerations in extractables and Leachables ?

954


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

1035






How can we determine Moisture content of HI?

1012


How to check hplc detecter sensitivity?

185


in dissolution in one tablets two molecule one is losartan & second is HCTZ losartam is complies in s1 stage & hctz is complies in s2 stage then how to report result losartan s1 stage result or losartan s2 stage result

863


What is control room temperature and which guide line says?

285


some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?

1105


WHAT IS THE CRITERIA FOR SELECTION OF TIME OF DISSOLUTION AND THE MEDIUM OF DISSOLUTION?

1316


How can the GC or HPLC method is selected to determine the impurity profile in drug product?

5303


what is the origin to prepare standard operating procedure

914


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

1447


cefoperozone and sulbactam inj. hplc test method

1226