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在破坏果木的刑事案件中，常需对所使用工具上的果树残渣进行检验，以解决果树的种类等问题。为此收集了 １５种热带果树枝，将其木质部风干、切碎，用石油醚浸泡，以硅胶ＧＦ２５４为吸附剂，环已烷：乙酸乙酯（９０：１０）为展开剂，用碘熏方法显色；薄层扫描仪为日本岛津 ＣＳ—９２０型，单波长锯齿扫描，扫描波长为 ４８５ｕｍ。通过对同一地区不同品种和不同地区同一品种果树的相同Ｒｆ值处相对峰高的差异来鉴别热带果树。该方法简单可行，并是鉴别果树种类的较好方法之一。
In the criminal cases that destroy fruit trees, it is often necessary to examine the fruit tree residues on the tools used to solve the problems of fruit tree species. For this purpose, 15 kinds of tropical fruit branches were collected and the xylem was air-dried, chopped and soaked in petroleum ether. Silica gel GF254 was used as adsorbent, cyclohexane: ethyl acetate (90:10) Color; thin-layer scanner for Japan’s Shimadzu CS-920-type, single wavelength sawtooth scanning, scanning wavelength of 485um. Tropical fruit trees were identified by comparing the relative peak heights at the same Rf values for the same variety of fruit trees in the same region and in different regions. This method is simple and feasible, and is one of the better ways to identify the types of fruit trees.