Answer / kizar ahamed

Column dimension (diameter) is different . In preparative
column we can give high flow rate (depends upon the
diameter)

Preparative column :9.4mm*250 5micron

Analytical column :4.6*250mm, 5micron

Answer / harry

analytical column is used for assay and purity study. while preparative column is used for synthesis when product recovery is concerned.

Answer / sujata

PREPARATIVE COLUMN IS ALSO USED IN THE CASE OF ISOLATION OF
IMPURITIES.

Answer / ankita

analytical column is used for testing (in small scale) where as preparative column is used when we are synthesizing in large scale.

why we are taking 85 ml of concentrated HCl to prepare 1N Solution

4 Answers   SG Phyto Pharma,

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Which type of column should i use to check the purity of high molecular weight protein using HPLC reverse phase column chromatography? Hi everyone. I wanna to check the purity of high molecular weight protein (collagen) with MW of ~130 kDa using a HPLC. I know C18

0 Answers   Petronas, Shanghai Ocean University,

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How to start the dissolution development for unknown tab?

0 Answers   IPCA,

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HOW RRF IS CALCULATED IN HPLC

2 Answers  

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Why forced degradation studies are performed in hplc method validation?

6 Answers   Apex,

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How you collect dissolution media while in stirring condition of a basket or a paddle?

2 Answers   Mylan,

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full name of OOS & OOT ? Dercribe it with details ? why this is needed in pharma industry ?

10 Answers   Orchid,

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What is the lab normality??

3 Answers   DRL, Tagros,

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using gradient pressure in gas chromatography are not ?using gradient pressure why

0 Answers   Reliance,

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Explain about empower software of analysing?

1 Answers   DRL,

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HOW TO CALCULATE THE MASS OF UNKNOWN IMPURITY IN LC-MS? AND WHAT IS THE ROLE OF FRAGMENTATION IN LC-MS ?

1 Answers  

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difference between record & document ?

4 Answers  

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