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Analytical Chemistry Interview Questions
Questions Answers Views Company eMail

What is differences between the Instrument and Equipment

Aurobindo,

2 1563

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

Aurobindo,

1 1915

What is UV cut off?

Sanmar,

1 1626

What is the importance of sulphated ash test?

1 1365

What is impurities in pharma analysis?

1 1054

What are the different zones in stability according to ICH?

Apotex,

1 1285

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

Cipla,

1 1410

How does GC did work?

1 900

Which detector is used in uv-vis spectrophotometer?

Glenmark,

1 2031

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

Lupin,

1 914

What is the difference between ROI & sulphates ash?

1 1231

What is difference between NDA & ANDA ?

Alembic,

1 1741

What is Rf value& Rx value in TLC?

Abbott,

1 1695

What are the six USP melting point reference standards?

1 1072

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

Apotex,

1 1174


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Un-Answered Questions { Analytical Chemistry }

how to select short coloum and long coloumn for new molecule

1417


What is a difference between potency and purity?

73


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

1926


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

1529


What is column in chromatography?

1211






How to compare XRD graphs against standard and carry polymorpism study of API's by powder XRD method?

2951


Explain what is a base line?

249


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

1688


is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth

1019


What is the difference between Discriminating media and DPDM(Dissolution Profile with Different Media)

6144


What is the calibration of uv process and preparation

1100


What is the principle of Thermal conductivity detector and FID?

1848


if you have given a blank water how you analyse by general analytical techniques?

1084


Why only hydroxy naphthol blue indicator is used for standardisation of 0.05M EDTA solution instead of solochrome Black T or Euriochrome Black T indicator which is used for all sample analysis with 0.05M EDTA solution?

1555


What is the Formula for coreletion coefficient in plhplc calibration

649