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- Posts: 12
- Joined: Sat Mar 18, 2006 8:57 am
Hi, chromatographers.
Now I am working on clarithromycin accroding to the USP methord. Its mobile phase described as below:
-mobile phase A: a 4.76 g/l solution of potassium dihydrogen phosphate R
adjusted to pH 4.4 with dilute phosphoric acid R or a 45 g/l
solution of potassium hydroxide R, filtered through a
C18 filtration kit.
-mobile phase B: acetonitrile.
About the "C18 filtration kit", I know its brand is "3M empore", but I can't find more information about that, such as the characteristic parameters, catalog No., product code No.
Does anybody has the information?
Now I am working on clarithromycin accroding to the USP methord. Its mobile phase described as below:
-mobile phase A: a 4.76 g/l solution of potassium dihydrogen phosphate R
adjusted to pH 4.4 with dilute phosphoric acid R or a 45 g/l
solution of potassium hydroxide R, filtered through a
C18 filtration kit.
-mobile phase B: acetonitrile.
About the "C18 filtration kit", I know its brand is "3M empore", but I can't find more information about that, such as the characteristic parameters, catalog No., product code No.
Does anybody has the information?
