Analytical Chemistry Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Analytical Chemistry Interview Questions

Questions Answers Views Company eMail

In burette calibration of Karl fischer Instrument, the multiplication factor 1.00693 is using for how much ml of water dispenced. why

1 4416

how can we decide the limit of cleaning validation? What is the criteria for it?

Glenmark,

2 13700

What is difference between Related Substance & Impurity Profile?

Jubilant Organosys,

2 51791

Why we are injecting low load standard conc. while analysing Related Substances by HPLC?

3 11246

why wetlab is called as wetlab

6 17906

In UV-VIS spectrophotometer:My diluent is methanol even though i corrected base line for methanol,In my sample scan i found methanol peak.what is the reason?

2 10255

What is the diffrence between the performing of LOD ordinary drying at voven and vaccum method.

Apex,

4 10900

How can we calibrate the burette dispencing capacity in metrorm kf titration calibration

1 6858

how a particular wavelength can be different for a particular compund while analysing by uv and by HPLC.

2300

in hplc calibration we are using 0.05% acetone why we are using that one and what happen when its conc increases or decreases

Aurobindo, Cadila, Martin,

4 32113

loss on drying we applied vaccum for some compounds and some compounds are at 105c why

3 12489

why we are calibrating autopolarimeter with quartz control plates

1 5841

what is the different in Total ash, sulphated ash, acid insoluble ash, alcoholic or non alcoholic ash?

GHI, Siemens,

10000

why we use TLC?

8 22132

why disodium tartarate is used for autotitrator calibration

Cipla, Micro Labs,

2 13425

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Un-Answered Questions { Analytical Chemistry }

how you determine moist.of NaOH sol or NaOH flacks

2222

what is partion and column chromatography

2392

i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me

2734

Related substance method equivalency on control sample or spiked sample?

769

how the compound separate in coulunm,explain

2533

Which is the highly polar and highly non polar column in HPLC?

2308

What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio

1897

Why use only methanol,used determinationof moisture content not use other solvents

1405

how to calibrate hplc & gc

4510

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

5219

in which situation require to use paddle and basket?

738

how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,

2602

How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

1778

what is biorelivent dissolution media?

807

what is mean by dissolution biowaiver study?

933

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