Improved Chromatographic Methods for Determination of Bioactive Compounds from Aloe vera Leaves

Figure 1

Typical chromatograms of an extract of Aloe vera leaves. (a) HPLC/P, (b) HPLC/M, (c) UPLC. Identification of aloins: 1: aloenin; 2: aloenin B; 3: isoaloesin; 4: aloin A; 5: aloin B.

(a)

(b)

(c)