【摘要】 分析了中国海南红树植物木果楝果实中27种金属元素的含量.木果楝果实样品经微波消解处理,采用电感耦合等离子体质谱(ICP-MS)技术检测.钛、钒、铬、锰、铁、铜、锌、砷、硒、钼、银、镉、铅13种元素采用普通模式检测;为消除多原子离子的干扰,锂、铍、硼、镁、铝、钴、镍、镓、铷、锶、碲、钡、铋和铀14种元素采用了碰撞/反应池技术(CCT)检测.结果表明试验条件下,铍、铝、铬、银、镉、铀等6种金属元素未检出.各金属元素的方法检出限(3s)在0.003~9.809μg·L-1之间,方法精密度(n=6)在0.161%~6.83%之间,加标回收率在90.0%~110.0%之间.研究结果为了解木果楝果实中金属元素的种类与含量,进一步开发利用木果楝果实提供了参考.更多还原

【Abstract】 The metallic elements of fruits of Xylocarpus granatumare analyzed.The sample is treated by microwave assisted digestion;and the contents of 27 metallic elements in the sample solution are determined by ICP-MS.The polyatomic ion effect on the determination of Li,Be,B,Mg,Al,Co,Ni,Ga,Rb,Sr,Te,Ba,Bi and U is eliminated by collision cell technique.Values of detection limit(3s)of the method found are in the range of 0.003-9.809μg·L-1,and RSD`s(n=8)in the range of 0.161 %-6.83%,Values of recovery in the range of 90.0%-110.0%.更多还原