equipped with LED model detector Ultimate 3000. The latter one
cooperated with the following devices: LPG-3400A pump, EWPS-3000SI autosampler, TCC-3000SD column thermostat and the
Chromeleon v.6.8 computer software. Separation was conducted
on Aminex HPH-87 H (3007.8 mm) column with IG Cation H
(304.6) precolumn of Bio-Red firm, at a temperature of 65C
Analysis of variance was conducted using ANOVA procedures.
Statistical analysis was performed with Statistica 8.0 (StatSoft Poland). Significant differences (P60.05) between the mean values
were determined using Duncan’s Multiple Range Test