Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is the defination of Bulk density?

Dr Reddys,

4 10619

What is the Defination of Tapdensity ?

Dr Reddys, R L Fine Chem,

4 8526

What is the formula for Tapdensity /

Dr Reddys, GR Intrachem,

6 11369




Why use in sodium salicylate in uv lamps calibration

Reddy Labs, Auctus Pharma,

1 4117

Why using Holmium oxide in UV calibration

Orchid, Dr Reddys, Matrix, Nakoda Chemicals,

8 31665

Why we are performing wavelength accuracy at lower and higher wavelengths in HPLC calibration

3 8612

How to fix the concentration for RS by HPLC

Reddy Labs, Intas,

8 28258

what is the definition of Precision.

Cipla,

4 6842




what is the identification test of volatile substance? what is volatile compound?

931

what is differance between volatile and non volatile compound expalin by exaple

2 11991

Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?

1 1674

In the test for control of absorbance in UV calibration why do we use only potassium dichromate and what is purpose of taking a specified amount of 57.0-63.0mg?

Cipla, FDC, Aurobindo,

8 45760

In the test for control of absorbance in UV calibration why do we use only potassium dichromate and what is purpose of taking a specified amount of 57.0-63.0mg?

Reddy Labs,

1 6914

Why do we use 500ppb sucrose and 500ppb 1,4 benzoquinone in TOC calibration?

5 14708

what is the use of performing tapped density in pharmaceutical industry

1 7765


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Un-Answered Questions { Analytical Chemistry }

Why dissolution test is not performed in all of the products

1136


what is the structure of DOWEX-50

3568


How to check hplc detecter sensitivity?

186


why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?

311


For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?

828






pda detector mechanism?

969


1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer

173


iam usig ph buffers merk. manually how to prepare ?

937


In Karl Fischer titration,What is the situation if the material tested is only soluble in water,and not soluble in the common solvents used such as methanol ?? [e.g. Iron III Hydroxide polymaltose]

1443


Why only Copper standard is used to calibrate Atomic Absorption spectrophotometer?

1179


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

1040


Why potassium dichromate was using in Uv calibration?

188


WHY given much noise PDA dector then VWD Dector

610


why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?

6658


what is the disso medium for tropsiun chloride

852