Chemistry Interview Questions
Questions Answers Views Company eMail

Through assay by hplc(anhydrous basis) product got 100.8% .How much the potency of that product.Moisture content is 1.7%,Sulfated ash is 0.02%,Total impurities are 0.3%

2 5431

Why pyrene is also use for calibration if detector

Cipla, Dr Reddys,

1 3907

what is difference in ods I ods II is this is realy from sorbent / packing characteristics or from other means

Sandoz,

1484

In gas chromatographic analysis sometimes we use headspace, why it is required instead of manually injection?

1 4006

why nitrile are least reactive of carboxylic acid derivative

1 2595

How to fix the sample concentration in related substances development.

Novartis, Watson Pharmaceuticals,

3 15051

Who discovered X-ray

Huntsman Corporation,

2 4209

which gas fill the cfl and light bulbs?

3 2913

How to calculate the signal to noise ratio.

Rakshit Drugs,

1 6525

why methonol used for kf titrations

Glenmark,

1 2592

Why pH range is 1-14 nt more than 14???

IPCA, Lincoln Pharmaceuticals,

3 7939

Weight balance variation limit during analysis

Amneal Pharmaceuticals,

7 8273

what are the differences between assay procedures and estimation in chemical analysis? also what is the equivalent factor that we consider in assay analytical procedures?

Karnataka College of Pharmacy,

2186

What is the principle of gas chromatography ?

Admiron Life Sciences, Bicon, MOL,

2 3794

How to calculate lamp energy in hplc?

1 3232


Un-Answered Questions { Chemistry }

from where i get mortar pastle for glass bottle crush? it's required for testing of it?

1730


Describe the process of Actinium extraction from its primary sources and how it's obtained for various applications.

111


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

1978


Why are use silicon oil mr?

736


[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?

341






What are the other ways in which chemists can manipulate the properties of polymers? : Polymer Chemistry

625


How to synthesize methylene bisthiocyanate using CH2Cl2 and NaSCN?

2434


In Assy by potentio metry titration method how select MET U ,DET U, SET U,

1305


GIVE FTIR SAMPLING ASSESORY NAME.

1990


Explain Thiele's structure for benzene. What is the difference between thiele's structure and modern structure (resonance hybrid) of benzene?

4616


Name the molecule which is characteristically prevalent in sour milk and tired muscles?

552


what is the disso medium for tropsiun chloride

1793


how require to set assay concentration for standard and sample?

360


Can you provide a brief overview of the properties and characteristics of the chemical element Actinium?

110


How an electrochemical is measured? Define emf of an electrochemical cell? : Electrochemistry Corrosion

580