长清产栝楼3个品系果皮的无机元素分析比较

为研究长清产栝楼3个品系果皮中无机元素的分布特征，采用电感耦合等离子质谱、电感耦合等离子光谱、原子荧光等方法对3个品系栝楼果皮中的20种元素进行了测定，并用SPSS统计分析软件对其进行双变量回归分析。发现不同品系栝楼果皮均含有Cu、 Zn、 Ca、 Mg、Mn、Fe等20种无机元素，但品系间含量有差异，大量元素除Mg、K外，品系I中N、 Ca、P、S含量均高于品系II、III；有益微量元素品系I中Fe、Mn、Cu、 Se含量高于品系II、III，品系II中B、Sr含量高于品系I、III，品系III中Zn、Ni、Mo含量高于品系I、II。栝楼果皮所测元素中共有35对元素呈现显著相关(P<0.05)，22对元素呈现极显著相关(P<0.01)。3个品系栝楼果皮均含有多种对心血管疾病有疗效的无机元素，种质不同对其含量有影响。该研究旨在为进一步制定瓜蒌皮药材质量标准，了解瓜蒌皮的药用价值，选育优良品种提供参考。

Analysis and comparison of inorganic elements in the peel of three strains of Trichosanthes kirilowii Maxim.from Changqing

We determined 20 elements in the peel of three strains of T. kirilowii from Changqing with ICP MS, ICP AES and AFS for investigating the distribution characteristics of inorganic elements. We also employed SPSS to analyze their correlations. Analytical results show that twenty inorganic elements including Cu, Zn, Ca, Mg, Mn and Fe all exist in the peel of these stains. However, the contents of these inorganic elements are different. The contents of N, Ca, P and S of strain I are all higher than those of strains II and III except Mg and K. The contents of Mn, Fe, Cu and Se of stain I are higher than those of strains II and III. The contents of B and Sr of stain II are all higher than those of strains I and III. The contents of Zn, Ni and Mo of strain III are all higher than those of strains I and II. 35 pairs of elements are significantly relative, P less than 0.05. 22 pairs of elements are perfectly significantly relative, P less than 0.01. The peel of the three strains all has inorganic elements against cardiovascular diseases. Different germplasms exhibit different impacts on their contents.