Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is differences between the Instrument and Equipment

Aurobindo,

2 932

Why dissolution test apparatus calibration with salycilic acid tablets was stopped by FDA&USP from the year of 2009?

Aurobindo,

1 794

What is UV cut off?

Sanmar,

1 951




What is the importance of sulphated ash test?

1 759

What is impurities in pharma analysis?

1 552

What are the different zones in stability according to ICH?

Apotex,

1 770

According to ICH,India is coming under which climatic zones?

Cipla,

1 811

How does GC did work?

1 463




Which detector is used in uv-vis spectrophotometer?

Glenmark,

1 833

Why chromic acid wash is not recommended by USP for glassware cleaning?

Lupin,

1 535

What is the difference between ROI & sulphates ash?

1 732

What is difference between NDA & ANDA ?

Alembic,

1 982

What is Rf value& Rx value in TLC?

Abbott,

1 771

What are the six USP melting point reference standards?

1 584

What is the size of capillary tube used for analysing melting point?

Apotex,

1 605


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Un-Answered Questions { Analytical Chemistry }

How to establish relative response factor for hplc. Why it is required?

18


How to do regeneration of Metacarb Pb plus column?

1425


What is similarity factor?

32


How do we fix the sample concentaryion in hplc method development. What is the basis?

47


How to start the dissolution development for unknown tab?

495






How to calculation of residual solvent methanol (3000 ppm) standard solution, and how many quantity used of test sample

1457


How to know the estimated LOQ concentration in ppm

53


what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

6798


function of detecter in hplc ,gc and spectroscopy? function of carrier gas in gc?

1363


Difference between hlaf and rlaf

885


In Dissolution Test why limit is define Q+5% what is the role of +5%.

1747


If we do accuracy at same concentration at which linearity planned,what is the need to do linearity separately?

1119


What is difference between the working standard and reference standard?

45


please explain about aluminium hydroxide assay

78


what is peak purity and its formula

420