D. Pyo et M. Lee, CHEMICAL-ANALYSIS OF MICROCYSTINS RR AND LR IN CYANOBACTERIUM USING APREPACKED CYANO CARTRIDGE, Chromatographia, 39(7-8), 1994, pp. 427-430
A new method for the determination of microcystins PR and LR in cyanob
acterium was developed using cyano-type prepacked cartridges. The micr
ocystins were extracted with 10 % acetic acid and the extract applied
to a Baker 10 cyano cartridge. After elution from the cartridge with 0
.5 M acetic acid-acetonitrile (1:9) the microcystins were determined b
y HPLC. Better recoveries and chromatograms were observed than with OD
S cartridges.