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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why reference flow required during hplc analysis on rid?

1 5923

why hydrogen and zero air used for flame ignition in gc?

1 9553

How we get DST moisture 15.4-16.0%. what is the calculation or method behind it.

2 28039

What is viod volume and peak purity in HPLC?

2934

what is the results if we use ODScolumn instead of BDS column ,(ther parameter is same for column) in assay method ?

3 11229

How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.

2359

what is the use of tap density apparatus? why we calculate it? what is the difference between the bulk density and tap density?

Alchemist, Alembic, Apex,

1 5323

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

2328

what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?

2338

What is the difference between void volume and delay volume in HPLC?

3 20209

What is the purpose of octyl silane columns?

4336

how many types of Proceing methods?

Reddy Labs,

8 14580

What is the column performance and column efficiency?

Reddy Labs,

2 16157

What are the primary standards?

6 13711

why we want incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ? What is the use to incorporate area of each solution of Intermediate precision and repeatability as well as Accuracy ?

1 4725


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

In HPLC Calibration, On which basis RSD Limit of noise test is fixed (NMT 33.0 % )

3551


if instrument calibration fails then what require to do?

1017


Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?

1903


how you establish the LOQ?

841


what is mean by dissolution biowaiver study?

995


what is definition of validation? which components are followed give detail?

2446


What is the principle of Thermal conductivity detector and FID?

2778


for inorganic molecules require to do RS, Assay and disso?

774


what parameters we will consider while developing a HPLC method and how we confirm our HPLC method is valid?

3750


what is classification of elemental impurities? what is risk assement in elemental impurities?

806


why salisylic acid not using now days for disdolution calibration?

837


What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

7601


what is the procedure for cleaning of lenses of hatr accesory of ftir instrument?

2338


what is the origin to prepare standard operating procedure

2401


in which situation require to take incident in validation?

1779