Gender Discrimination of Flower Buds of Mature Populus tomentosa by HPLC Fingerprint Combined with Chemometrics

Figure 1

The example of HPLC chromatograms of M2 (a) and F4 (b). The chromatographic peaks of the known compounds: 4, siebolside B; 5, isograndidentatin A; and 12, sakuranetin. The X axis refers to the retention time (t/min). The Y axis refers to the response value (mAU).