Wet microwave digestion of diet and fecal samples for inductively coupled plasma analysis.
Wet microwave digestion of diet and fecal samples for inductively coupled plasma analysis.
复制标题
对饮食和粪便样品进行湿式微波消解，用于电感耦合等离子体分析。
DOI：
10.1021/ac00170a015
复制
发表时间：
1988
影响因子：
7.4
通讯作者：
D. Milne
中科院分区：
文献类型：
--
作者：
G. M. Schelkoph;D. Milne
介绍了一种微波消化代谢平衡研究中饮食和粪便样品的方法。样品，密封在容器中（CEM Corp.）由Teflon PFA牌氟碳树脂与硝酸-盐酸混合物制成，在微波炉中消解30 min。电感耦合等离子体发射光谱（ICP-ES）分析8种不同矿物元素的消解物，表明与几种NBS标准参考物质的认证值非常一致。回收率为92-104%，相对标准偏差为0.1 - 9.3%。表明该方法适合于ICP-ES测定元素的消解样品，但在原子吸收光谱法或电感耦合等离子体发射光谱法（ICP-ES）分析痕量元素前，必须破坏和除去样品中的有机基体。Gorsuch（1）已经讨论了与不同的干灰化和湿灰化有关的许多问题
A method for the microwave digestion of diet and fecal sam-ples from metabolic balance studies Is described. Samples, enclosed In vessels (CEM Corp.) made of Teflon PFA brand fluorocarbon resin with a nitric-hydrochloric acid mixture, were digested In a microwave oven for a period of up to 30 min. Inductively coupled plasma emission spectroscopic (ICP-ES) analysisof the dlgestates for eight different mineral elements Indicated excellent agreement with certified values In several NBS StandardReference Materials. Recoveries of 92-104% and precision between 0.1 and 9.3% relative standard deviation Indicated that this procedure was well suited for providing digested samples for elemental determination by ICP-ES.It is necessary todestroy and remove the organic matrix of samples prior to trace element analysis by atomic absorption spectroscopy or by inductively coupled plasma emission spectroscopy (ICP-ES). Gorsuch (1) has discussed many of the problems related to different dry-ashing and wet-ashing