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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

why we use x terra columns at higher ph ?

Hetero,

2 11442

what is dead time in hplc?

Orchid,

3 19532

what is the difference between melting range & melting point? Which is more significant?

5 31027

what is the significant of pH in HPlc?

Orchid,

5 15499

what is weight veriation in pharma industry ? plz explain me

1 3741

How to now that my acid is contact with base or base is contact with acid in drugs, is there any techniq to identify the formation of salt(drug)

Reddy Labs,

3 7594

what is least count of a balance? How we find out this? Any formula for least count of Analytical balance?

Acme Formulation, Analytical Solutions, Dr Reddys, Reddy Labs,

13 98997

Explain about Low pressure gradient and High Pressure gradient systems in HPLC?

Mylan, Orchid, Roshanico,

4 29821

what is protocol ? plz Explain me

5 12931

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

JBCPL,

3218

HPLC Calibration was done in Reverse Phase, but not in normal phase why explain?

Cipla, Orchid,

11 33642

what are the standard methods for HPLC?

Orchid,

2786

What is the procedure for investigation of an OOS (Out of specification) results?

Biocon, Dr Reddys, Reddy Labs,

4 26309

How do you give training to a new chemist

Reddy Labs,

3 10862

what is the Bracketing & Matrixing.

Dr Reddys, Ranbaxy,

8 44859


Post New Analytical Chemistry Questions

Un-Answered Questions { Analytical Chemistry }

in api coa contains only process impurities and in product coa contains degradation impurities?

701


In HPLC calibration, caffeine is used as primary standard for wave length calibration due to caffeine is having dual maxima at 273 & 205 nm and one minima at 245 nm. Any body can give reference of these details from any pharmacopeia (with chapter no.) or any other authentic guideline?

1973


While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?

2866


If suppose 10 methods of dissolution given in pharmacopoeial for single content product then which method out of 10? or all 10 require to follow?

987


Please give idea about method development for cleaning method and how maco level establish

748


what type of question will ask in the interview of lab chemist.

3322


which are the sizes of capsules?

971


What is a difference between potency and purity?

1221


What is third generation HPLC Columns?

1981


on saturation solubility study data how we can find out the bcs class of drug?

899


In performance Check of GC Why Hexadecane Peak is Considered 

3045


in which situation require to change rs specification?

749


How can the GC or HPLC method is selected to determine the impurity profile in drug product?

7596


why cone formation during dissolution?

786


Why we use potassium dichromate in uv calibration Exact reason behind it??

1259