Determination of Five Coumarins in Angelicae Pubescentis Radix from Different Origins by HPTLC-Scanning

Figure 2

HPTLC 3D diagram of the test solution. Note. 1 and 2 are HPTLC scanning images of the mixed standard solution, and 3–5 are HPTLC scanning images of the sample solution. The chromatographic peaks from left to right were oxypeucedanin, imperatorin, osthole, columbianadin, and isoimperatorin.