高压消解—ICP-AES测定木材及木制品中的铜铬砷

摘要
参考文献
相关文章 (15)

全文: PDF (1118 KB)
输出: BibTeX | EndNote (RIS)

摘要：研究了木材及木制品的制备，样品被制成锯末，过孔径为0.5mm的筛，在105℃烘干4～5 h，采用方差分析法进行样品均匀性试验。比较了湿法、干法、高压消解(包括密闭微波消解系统和钢衬聚四氟乙烯消解罐消解)样品的前处理方法。从比较结果来看，湿法消解适用于测定样品中可溶性的铜铬砷，干法消解和高压消解适用于测定样品中总的铜铬砷，但干法消解使砷有挥发损失。探讨了酸度效应和基体效应。建立了高压消解—ICP-AES测定木材及木制品中铜铬砷总量的方法。铜铬砷的检出限(3σ)分别为：1.2，0.2，7.1 mg·kg^-1,相对标准偏差为0.2％～1.5％，回收率为92％～106％。该方法为控制木材、木制品及其废弃物中有害物质提供了更为合理的结果，已应用于实际的检测工作。

关键词：电感耦合等离子体原子发射光谱法;均匀性;消解;木材;铜;铬;砷

Abstract：Sample preparation was studied，samples were sawn to be sawdust，screened by a 35 mesh sieve，dryed 4-5 h at 105 ℃，and its homogeneity was tested by variance analysis. Sample pretreatment methods were investigated with wet decomposition, dry ashing，high pressure digest (including microwave-assisted closed digestion and steel liner PTFE vessel digestion). According to the comparative results, wet decomposition is fit for testing soluble copper, chromium and arsenic. Dry ashing and high pressure digest are fit for testing total copper, chromium and arsenic, but arsenic is easy to lose in dry ashing. Acidity effect and matrix effect were discussed. A method was proposed for the determination of total copper, chromium and arsenic in wood and its products by high pressure digest-ICP-AES. The detection limit of copper, chromium and arsenic was 1.2, 0.2 and 7.1 mg·kg^-1,respectively, RSDs were in the range of 0.2%-1.5%, and recoveries were between 92% and 106%. Using this method, more reasonable results will be given for controlling toxic substances from wood and its products and their wastes. This method has been applied to practical sample analysis.

Key words：Inductively coupled plasma atomic emission spectrometry;Homogeneity;Digestion;Wood;Copper;Chromium;Arsenic

收稿日期: 2006-04-10 修订日期: 2006-08-20

中图分类号:

O657.3

通讯作者: 黄本立 E-mail: jinxzh68@tom.com

引用本文:

金献忠^1,2,陈建国²,朱丽辉²,曹国洲²,黄本立^1*. 高压消解—ICP-AES测定木材及木制品中的铜铬砷[J]. 光谱学与光谱分析, 2007, 27(09): 1837-1840.
JIN Xian-zhong^1,2,CHEN Jian-guo²,ZHU Li-hui²,CAO Guo-zhou²,HUANG Ben-li^1* . Determination of Copper, Chromium and Arsenic in Wood and Its Products by High Pressure Digest-ICP-AES. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(09): 1837-1840.

链接本文:

https://www.gpxygpfx.com/CN/Y2007/V27/I09/1837

[1] Tame N W, Dlugogorski B Z. Chemosphere, 2003, 50(9): 1261.
[2] Helsen L, Van den Bulck E. Journal of Analytical and Applied Pyrolysis, 2003, 68-69(1): 613.
[3] Tait Chirenje, Ma L Q. Environmental Pollution, 2003, 124(3): 407.
[4] Roger Feldhoff, Thomas Huth-Fehre, Karl Cammann. Journal of Near Infrared Spectroscopy, 1998, 6(A): 171.
[5] C Methods of Analysis of Wood Preservatives Treated Timber Part 3. Quantitative Analysisof Preservatives and Treated Timber Containing Copper, Chromium, Arsenic Formulations, BS 5666, Part 3: 1991.
[6] Wood Preservatives-General Guidance on Sampling and Preparation for Analysis of Wood Preservatives and Treated Timber. BS EN 212: 2003.
[7] JIN Xian-zhong, ZHENG Shu-zhao, QIU Yin(金献忠, 郑曙昭, 丘寅). Ptca TCA(Part B: Chem. Anal.)(理化检验: 化学分册), 2004, 40(11): 654.
[8] LIU Hu-sheng, WANG Nai-fen, WANG Xiao-yan(刘虎生, 王耐芬, 王小燕). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2000, 20(4): 522.
[9] LI Li, ZHANG Wen-dong, LONG Jun-biao(李莉, 张文东, 龙军标). Acta Scientiarum Naturalium Universitatis Sunyatseni(中山大学学报·自然科学版), 2002, 41(3): 125.
[10] WANG Xiao-ping, MA Yi-jin, Mitso itoh(王小平, 马以瑾, 伊藤光雄). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2005, 25(10): 1703.
[11] YI Xing-ping, LIU Jian-ping, LI Ge(易新萍, 刘建平, 李革). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2004, 24(7): 890.
[12] WANG Xiao-ping(王小平). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2005, 25(4): 563.
[13] ZHENG Yong-jun, ZHAO Bin, YOU Jin-mao(郑永军, 赵斌, 尤进茂). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2006, 26(6): 1155.
[14] LI Fan, YE Xiao-ying(李帆, 叶晓英). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2003, 23(6): 1174.
[15] ZHANG Sheng-bang, ZHANG Xue-jun, GUO Yu-sheng(张胜帮, 张学俊, 郭玉生). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2004, 24(10): 1260.