Aliquots of 40 mL were injected and chromatographic separation was performed at room temperature with a Luna RP-C18 column (250 4.60 mm 5 mm) coupled with a guard-pack C18 (5 mm) precolumn
Aliquots of 40 mL were injected and chromatographic separation was performed at room temperature with a Luna RP-C18 column (250 4.60 mm 5 mm) coupled with a guard-pack C18 (5 mm) precolumn