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 3704

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

Glenmark,

2 12926

What is difference between Related Substance & Impurity Profile?

Jubilant Organosys,

2 50843

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

3 10084

why wetlab is called as wetlab

6 16462

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 9429

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

Apex,

4 9722

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

1 6226

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

1966

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 30701

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

3 11446

why we are calibrating autopolarimeter with quartz control plates

1 5262

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

GHI, Siemens,

9604

why we use TLC?

8 20453

why disodium tartarate is used for autotitrator calibration

Cipla, Micro Labs,

2 12463


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Un-Answered Questions { Analytical Chemistry }

if tech transfer fails whay require to do?

454


on the basis of bcs class how to proceed the solubility?

402


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

2255


which situation gc hs and gc als require to use?

427


How can we confirm the HPLC column is end-capped or not? Is it possible to identify by physical appearance?

2855






Difference between the quantitative analysis and qualitative analysis?

770


What is stray light in uv what are units for stray light

1149


How to calculate coreletion coefficient

1283


how to qualify the impurity?

457


What is intact assay method development.....?

2145


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

1316


How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

2071


Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?

2589


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

1941


What is mean by PDR?

474