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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 6366

Why pyrene is also use for calibration if detector

Cipla, Dr Reddys,

1 4749

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

Sandoz,

1972

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

1 4786

why nitrile are least reactive of carboxylic acid derivative

1 3308

How to fix the sample concentration in related substances development.

Novartis, Watson Pharmaceuticals,

3 16841

Who discovered X-ray

Huntsman Corporation,

2 5145

which gas fill the cfl and light bulbs?

3 4208

How to calculate the signal to noise ratio.

Rakshit Drugs,

1 7514

why methonol used for kf titrations

Glenmark,

1 3420

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

IPCA, Lincoln Pharmaceuticals,

3 9114

Weight balance variation limit during analysis

Amneal Pharmaceuticals,

7 10420

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,

2677

What is the principle of gas chromatography ?

Admiron Life Sciences, Bicon, MOL,

2 4931

How to calculate lamp energy in hplc?

1 3989


Un-Answered Questions { Chemistry }

Define a substituted hydrocarbon?

1068


how to get accurate result for Residue on evaporation in purified water

1647


Actinium-227 can decay into Thorium-227. Explain the significance of this decay chain and its applications, particularly in nuclear physics.

672


EXPLAIN THE CALCULATION PART OF AN KF TITRATOR CALIBRATION WITH SUITABLE EXAMPLE

2636


What are the methods used to control the corrosion? : Electrochemistry Corrosion

1019


why we use glass fiber filters use in some situation?

800


Define an isomer?

1006


why salisylic acid not using now days for disdolution calibration?

772


what are the standard methods for HPLC?

2786


What is the bluish white precipitate formed after adding ammonia solution?

1098


Is napthalene aromatic?

1339


What is edta?

1071


what is partion and column chromatography

2392


What is similarity factor?

1206


What is glacial acetic acid?

1062