PDF《电热板消解与密闭罐消解对土壤中 49种》

第28卷第3期 2009年 3月 分析测试学报 FENXI CESH I XUEBAO ( Journal of Instru m entalAnalysis) V ol

128 No13 319~

325 收稿日期: 2008- 10-

10 ;

修回日期: 2008- 11-

11 第一作者: 田娟娟 ( 1983- ), 女, 河南焦作人, 硕士研究生 通讯作者: 仇厚援, Te: l 13976481128, E- m ai: l qiuhouyuan @ sohu1com 电热板消解与密闭罐消解对土壤中 49种 矿质元素 I CP- MS法检测的影响 田娟娟

1 ,

2 , 杜慧娟

2 , 潘秋红

2 , 段长青

2 , 仇厚援

1 (

11 海南大学 食品学院, 海南 儋州 571737;

21 中国农业大学 食品科学与营养工程学院, 北京 100083) 摘要: 分别采用电热板消解和密闭罐消解进行土壤样品前处理, 根据加标回收实验和国家标准物质 ( GBW07403)验证实验, 结果显示, 使用电热板消解 - I CP- MS法分析土壤中铍、锂、钒、铬、锰、钴、镍、 铜、锌、镓、锗、砷、硒、锶、锆、铌、钼、钯、银、镉、铟、锡、钡、钽、钨、铼、铊、铅、铀可获得较 好的准确性和精密度, 而密闭消解罐消解 - I CP- M S法则更适于土壤中钪、钇、镧、铈、镨、钕、钷、钐、 铕、钆、铽、钬、铒、铥、镱、镥、铱、铂、金、钍的检测, 各元素的检出限为

01 311~

94136 ng /L, 相对标 准偏差为

01 55% ~ 5103% .

表明不同消解方法适于土壤中不同矿质元素的检测.应用所建立的方法, 对新疆 地区 2个葡萄园的土壤样品中 49种矿质元素进行了分析. 关键词: 电感耦合等离子体质谱 ( ICP- M S);

电热板消解;

密闭消解罐消解;

土壤;

矿质元素 中图分类号: O657163;

O614 文献标识码: A 文章编号: 1004- 4957( 2009) 03- 0319-

07 E ffects of E lectricH eating Board D igestion and C losed Teflon Vessel D igestion on Deter m ination of 49M ineral E lements in Soil by Inductively Coupled P las maM ass Spectrometry T I AN Juan-juan 1,

2 , DU Hu- i juan

2 , PAN Q iu -hong

2 , DUAN Chang-qing

2 , Q I U Hou -yuan

1 ( 11Food C ollege , H ainan University , Danzhou 571737, Ch ina ;

21C ollege of Food Science and Nutritional Engineering , Ch inaAgricu lturalUn iversity , Beijing 100083, China) Abstrac: t Soil samples w ere d igested in the electric heating board and the closed teflon vesse,l re - spectively. A ccording to the recoveries of standard add ition of each element and the certified values of the national soil standard(GB W 07403), themethod of inductively coupled plasmamass spectrometry ( ICP- M S) w ith electric heating board digestion was su itab le for the deter m ination of such elements as Be , L,i V, C r , M n , Co, N ,i Cu , Zn , Ga , Ge , A s , Se, Sr , Zr , Nb, M o, Pd , Ag, Cd , In , Sn , Ba , Ta, W, Re , T,l Pb and U, wh ile the method of ICP - M S w ith closed teflon vessel digestion show ed high accuracy and good precision for the analyses of Sc , Y, La , C e , Pr , Nd , Sm, Eu , Gd , Tb , Dy, H o , E r , Tm, Yb, Lu , Ir , P, t Au and Th. The detection li m its for

49 ele m ents w ere in the range of 01311-

94136 ng/L, and the relative standard deviations w ere

0155 % -

5103 % . The re - su lts indicated that d ifferentmethods of sa mp le d igestion would be fit for the analysis of differentm in - eral elements in soi. l

49 m ineral elements in soil from two different vineyards in the X in jiang U ygur Autonomous R egion w ere deter m ined by the established method . Key words : inductively coupled plasma mass spectrometry( ICP- MS );

electric heating board d- i gestion ;