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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

what is rs test why we are perfoming rs test

2 10283

In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?

Orchid,

2999

What is difference between silica used in TLC and HPLC column

Cipla, Meghmani Organics,

4 19012

Why Urasil and Caffeine use for HPLC wavelength accuracy calibration. which is most suitable, Why? other than these which can be used?

Cipla,

7 18540

When we r doing processing method for sst in Empower software by HPLC, What value has to give in void volume and as per which pharmacopia!

Micro Labs, Mylan,

5 14567

what is use of acetonitrile compare to methanol in RP-HPLC Method devlopment

Neuland, Orchid,

7 23579

is a bonded water molecule in an organic material can be easlisy and accuractly determined by KF rather than LOD

2 7362

How to know HPLC column performance?

Meghmani Organics,

4 12753

What is heavy water

Meghmani Organics,

3 8459

What will be the effect on HPLC analysis result if three mobile phases given separately through three valves and same proportion mixed together and given by one valve?

LOIL,

1 4956

Which products will produce when acetic anhydride reacts with Ter-butanol, Sec-butanol, Iso butanol, Dimethylamine etc.

2674

Why PH range from 0to14.

College School Exams Tests, Reddy Labs, Wings Customer Care,

2 13889

why you are using benzoic acid for water content determination in TEA

2 7528

difference between instrumenent and equipment

6 13415

mixed 1.0 ml of methanol and 1.0 ml of toluene and injected in gas chromatography.will you prove that both solvents are in the ratio 1:1(not by area normalization)

1 3510


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 % )

3289


What is the main difference between ODS1 and ODS2 Hplc column.

4910


[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?

584


how you start RS method development when for new product?

547


what is the origin to prepare standard operating procedure

2122


in gas chromatography what is the difference between gas flow rate and average linear velocity ?

2375


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

594


What is the calibration of uv process and preparation

1795


what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?

1825


acceptance criteria for lod & loq by standard deviation of response and slope??

2403


why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?

2095


CAN WE DETERMINE THE PEAK PURITY IN GAS CHROMATOGRAPHY ANALYSIS?

1018


How to fix the sample conc. in Related substances test by HPLC?

910


What are modes of quantification in related substances

2013


how can give the expiry period and restadardisation of volumetric solution

2399