The LC system used to analyze the cyanotoxin content was a Varian 9012
equipped with a Varian ProStar 330 Diode Array Detector. Chromatographic data
were processed with a Star Chromatography Workstation (Varian Technologies).
Chromatographic separation of CYN was performed according to Welker et al.
(2002) on a 250 mm 4.6 mm i.d., 5 mm, LiChrosphere C18 column purchased
from Merck (Darmstadt, Germany).