Cheng Fa-liang, Ning Man-xia, Mo Jin-yuan, Liang Ye-cheng
Department of Applied Chemistry, Dongguan Institute of Technology, Dongguan 523106, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2002 Aug;22(4):676-8.
Conditions for determination of multi-trace elements simultaneously in lychee fruit by ICP-AES. Al, Ba, Cr, Mg, Mn, Sr, Mo, Pb, Se, Zn, Fe, Cu and Ca in different parts and different growth periods of lychee fruit in Dongguan area were determined, relative standard deviation of the method is between 1.3%-4.9%, and recovery is between 89%-124%, analytical results were satisfactory. And compared the concentration and distribution of those trace elements with those in other areas. We find that the concentration of Mo in lychee fruit sample we determine is much lower, which implies that we can improve the production and quality of lychee by applying Mo to the tree. Some elements essential to human such as Zn, Fe, Mg and Ca are high in lychee fruit, implied that nutritive value of this fruit breed is higher.
电感耦合等离子体原子发射光谱法同时测定荔枝果实中多种微量元素的条件。对东莞地区荔枝果实不同部位和不同生长时期的铝、钡、铬、镁、锰、锶、钼、铅、硒、锌、铁、铜和钙进行了测定，该方法的相对标准偏差在1.3%-4.9%之间，回收率在89%-124%之间，分析结果令人满意。并将这些微量元素的含量和分布与其他地区进行了比较。我们发现所测定的荔枝果实样品中钼的含量要低得多，这意味着通过对树施用钼可以提高荔枝的产量和品质。荔枝果实中锌、铁、镁和钙等一些人体必需元素含量较高，表明该品种水果营养价值较高。
