Answer / ramakrishna23

ir= infra red region ;
nir=near infra red region

why urasil use in hplc column perfomance?

1 Answers   Bayer,

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Explain the relations between number of carbon atoms in alkanes and retention time ?

0 Answers   College School Exams Tests,

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Which buffer is used for LC/MS mobile phase & at What Conc.

3 Answers  

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Wath is the differenc between two column HPLC wich have the samme support , lenth , pore size, etc.. But different name .for exemple : Spherisorb / lichrosorb

2 Answers   NDA,

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What is unit of pH?

26 Answers  

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In method developement or in any analysis if we use small length column for analysis what happen then ? why ?

3 Answers  

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in determination of(acetone) moister content we are using methanol replaced by pyredine.what hapend in that reaction.

2 Answers   Glenmark, Neuland,

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How you will select column for HPLC development depends on nature of compound and how it will work explain in brief?

3 Answers  

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Why sodium lamp is used in polarimeter?

1 Answers   Aurobindo, Micro Labs, Mylan,

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reasons for negative peaks in chromatography

5 Answers   DRL,

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if the purity is 99.9%,is need to do assay?

3 Answers   Reddy Labs,

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What is related substance by HPLC impurity limits as per USP?

0 Answers  

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