By Anonymous on Monday, August 27, 2001 - 10:11 am:
Hello,
I have no experience with ion chromatography and would like to know if it is possible to analyze for ruthenium in drug substance with ability to detect 1 ppm. Current procedure is by ICP but precision is poor (85 ppm, RSD > 20%).
By Jim Gorum on Sunday, January 27, 2002 - 11:08 am:
I don't know about IC for Ru, but Ru forms brightly colored complexes with some ligands. Perhaps 1,10 phenanthroline in the mobile phase for a reverse phase separation would work well.
Jim
By Anonymous on Friday, April 12, 2002 - 03:33 pm:
Anodic Stripping is very sensitive. (Not chromatography) ppt levels achievable, lots of references.
Radiometer / Metrohm / EG+G / Echochemie /BAS are all suppliers of voltammetry equipment.
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