Saiki M, Vasconcellos M B, Sertié J A
Instituto de Pesquisas Energéticas e Nucleares, Radiochemistry Division, São Paulo-SP, Brasil.
Biol Trace Elem Res. 1990 Jul-Dec;26-27:743-50. doi: 10.1007/BF02992731.
Instrumental neutron activation analysis (INAA) has been applied to multielemental determinations of medicinal extracts obtained from the plants. Cordia Verbenacea DC, Folidago Microglossa DC, and Petiveria Alliacea. Concentrations of the elements Al, Br, Ca, Cl, Co, Cs, Fe, K, La, Mg, Mn, Na, Rb, Sb, and Zn have been determined in dried extracts of these herbs by short and long irradiations under a thermal neutron flux of 10(11)-10(13) n/cm2s in the IEA-R1 nuclear reactor. The NBS Tea Leaves (1572) and NIES Pepperbush (1) reference materials were analyzed simultaneously with the plant extracts. The results obtained in these analyses have shown a good accuracy and reproducibility of the method. The relative errors and the relative standard deviations were less than 10% for most of the elements analyzed.
仪器中子活化分析（INAA）已应用于从植物中获得的药用提取物的多元素测定。包括马鞭草科破布木属植物（Cordia Verbenacea DC）、微小花一枝黄花（Folidago Microglossa DC）和蒜臭草（Petiveria Alliacea）。在IEA-R1核反应堆中，热中子通量为10(11)-10(13) n/cm2s的条件下，通过短时间和长时间辐照，测定了这些草药干提取物中铝（Al）、溴（Br）、钙（Ca）、氯（Cl）、钴（Co）、铯（Cs）、铁（Fe）、钾（K）、镧（La）、镁（Mg）、锰（Mn）、钠（Na）、铷（Rb）、锑（Sb）和锌（Zn）等元素的浓度。同时对NBS茶叶（1572）和NIES椒树（1）标准物质与植物提取物进行了分析。这些分析所得结果表明该方法具有良好的准确性和重现性。对于大多数分析元素，相对误差和相对标准偏差均小于10%。
