OALib Journal期刊
磷酸超声提取大气颗粒物中砷的多种形态
, PP. 491-495
Keywords: 氢化物发生原子荧光光谱 ,高效液相色谱 ,大气颗粒物 ,砷 ,形态分析
Abstract:
以H3PO4为提取剂,利用高效液相色谱与氢化物发生原子荧光光谱联用(HPLC-HG-AFS)实现了大气颗粒物中砷形态的温和提取测定,并通过标准样品的形态加标实验确定了最佳提取方法。在优化的色谱及光谱条件下,AsⅢ,AsⅤ,MMA(甲基胂酸)和DMA(二甲基胂酸)均可达基线分离,其方法检出限分别为1.40,1.26,1.97和1.16mg/L,RSDs<2%(n=5)。形态加标后的西藏土壤成分分析标准物质(GBW08302)经1.0mol/LH3PO4超声提取40min,各形态的提取效率均达到或接近90%,且无明显的形态转化。利用本方法对北京某地区大气颗粒物中砷的形态进行测定,确定砷的主要存在形式为无机砷AsⅢ和AsⅤ。
References
[1] Cullen W R,Kenneth J.Reimer,Chem.Rev.,1989,89(4):713～764 [2] Wang S,Mulligan C N.Science of The Total Environment,2006,366(2-3):701～721 [3] Gong Z L,Lu X F,Ma M S,Watt C,Le X C.Talanta,2002,58(1):77～96 [4] Machado A,Slejkovee Z,van Elteren J T,Freitas C M,Baptista M S.Journal of Atmospheric Chemistry,2006,53(3):237～249 [5] Tsopelas F,Tsakanika L A,Ochsenkühn-Petropoulou M.Microchemical Journal,2008,89(2):165～170 [6] SHENTU Chao,HOU Yi-Zhong,FAN Yun-Chang,ZHU Yan(申屠超,侯逸众,范云场,朱岩).Chinese J.Anal.Chem.(分析化学),2009,37 (2):263～266 [7] WEI Chang-Jin,LIU Qi-Xin,PEI Xiao-Hua (韦昌金,刘霁欣,裴晓华).Chinese J.Anal.Chem.(分析化学),2008,36(8):1061～1065 [8] Tamaki S,Jr Frankenberger W T.Reviews of Environmental Contamination and Toxicology,1992,124:79～110 [9] Rodríguez V M,Jiménez-Capdeville M E,Giordano M.Toxicology Letters,2003,145(1):1～18 [10] Pizarro I,Gómez M,Cámara C,Palacios M A.Anal.Chim.Acta,2003,495(1-2):85～98 [11] SONG Chu-Hua (宋楚华).Journal of Wuhan University of Technology(武汉理工大学学报),2010,32(13):45～47 [12] Georgiadis M,Helena Y C.Environmental Pollution,2006,141(1):22～29 [13] Karthikeyan S,Hirata S,Iyer C S P.International Journal of Environmental Analytical Chemistry,2004,84(8):573～582 [14] WANG Hua-Jian,LI Yan-Hong,FENG Wei-Yue,WANG Meng,JIA Guang,WANG Bing,ZHU Mo-Tao,WANG Yun,CHAI Zhi-Fang (王华建,黎艳红,丰伟悦,王萌,贾光,汪冰,朱墨桃,王云,柴之芳).Chinese J.Anal.Chem.(分析化学),2009,37 (3):433～436 [15] Farinha M M,Slejkovec Z,Van Elteren J T,Wolterbeek H T,Freitas M C.Journal of Atmospheric Chemistry,2004,49(1-3):343～353 [16] Chen Y W,Belzile N.Anal.Chim.Acta,2010,671(1-2):9～26 [17] Directive 2004/107/Ec of the European Parliament and of the Council of 15 December 2004,Relating to Arsenic,Cadmium,Mercury,Nickel and Polycyclic Aromatic Hydrocarbons in Ambient Air.Official Journal of the European Union
Full-Text
Contact Us
service@oalib.com
QQ:3279437679
WhatsApp +8615387084133
