ICP-AES法研究六钛酸钾晶须对Cu(Ⅱ)，Pb(Ⅱ)，Cd(Ⅱ)的吸附性能

doi:10.3964/j.issn.1000-0593(2009)03-0801-04

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摘要：以电感耦合等离子体原子发射光谱法(ICP-AES)为检测手段，研究了新型吸附剂六钛酸钾晶须对环境样品中Cu(Ⅱ)，Pb(Ⅱ)，Cd(Ⅱ)的分离/富集行为以及解脱的主要因素，并考察了共存离子的干扰影响。在pH值为5.0，振荡时间为5 min，静置时间为30 min时，吸附率可达到95％以上。以3 mol·L^-1 HNO₃作为解脱剂，沸水浴加热40 min，振荡5 min，静置40 min，可将吸附在六钛酸钾晶须上的Cu(Ⅱ)，Pb(Ⅱ)，Cd(Ⅱ)定量洗脱。测定Cu(Ⅱ)，Pb(Ⅱ)，Cd(Ⅱ)的检出险分别为0.007 1，0.006 8，0.007 1 μg·mL^-1,相对标准偏差(RSD)为0.63%，0.61%，0.50%。在优化的实验条件下，将其用于菊花和琵琶叶中Cu(Ⅱ)，Pb(Ⅱ)，Cd(Ⅱ)含量的测定，加标回收率在90%～102.9%之间。

关键词：电感耦合等离子体原子发射光谱法(ICP-AES);铜;铅;镉;吸附性能;六钛酸钾晶

Abstract：A new method for the determination of free Cu2+, Pb²⁺ and Cd²⁺ in environmental sample using potassium hexatitanate whisker as a solid-phase extractant and inductively coupled plasma-atomic emission spectrometry (ICP-AES) as a sensitive detector has been developed. The adsorption rate of Cu²⁺,Pb²⁺ and Cd²⁺ by potassium hexatitanate whisker was 98% at pH 5.0, and Cu²⁺,Pb²⁺ and Cd²⁺ could be eluted from potassium hexatitanate whisker with HNO₃ (C: 3 mol·L^-1). The Cu²⁺,Pb²⁺ and Cd²⁺ in environmental samples were preconcentrated with potassium hexatitanate whisker and determined by ICP-AES, the detection limits of Cu²⁺,Pb²⁺ and Cd²⁺ (3σ, n=9) were 0.007 1，0.006 8 and 0.007 1 μg·mL^-1,and the relative standard deviations (RSD) were 0.63%, 0.61% and 0.50%, respectively. The method was applied to the determination of analytes in real samples, such as chrysanthemum and loquat leaf. And good results were obtained (recoveries were 90%-102.9%). The results obtained indicate that the potassium hexatitanate whisker has good regenerate capability.

Key words：ICP-AES;Cu²⁺;Pb²⁺;Cd²⁺;Adsorption behavior;Potassium hexatitanate whisker

收稿日期: 2007-08-10 修订日期: 2007-11-20

中图分类号:

O657.3

通讯作者: 闫永胜 E-mail: xuwanzhen1212@163.com

引用本文:

徐婉珍,李春香,刘艾芹,闫永胜^* . ICP-AES法研究六钛酸钾晶须对Cu(Ⅱ)，Pb(Ⅱ)，Cd(Ⅱ)的吸附性能[J]. 光谱学与光谱分析, 2009, 29(03): 801-804.
XU Wan-zhen, LI Chun-xiang, LIU Ai-qin, YAN Yong-sheng^*. ICP-AES Determination of Cu²⁺,Pb²⁺ and Cd²⁺ with Adsorption Behavior of Potassium Hexatitanate Whisker. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(03): 801-804.

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[1] MENG Duo, ZHOU Li-dai, YU Chang-wu(孟多, 周立岱, 于常武). Liaoning Chemical Industry(辽宁化工), 2006, 35(9): 534.
[2] Terelak H, Stuczynski T, Piotrowska M. Journal of Soil Science, 1997, 30(2): 35.
[3] Doyle J J. Environ. Qual., 1997, 6: 111.
[4] Nojeh A, Lakatos G W, Peng S, et al. Nano Lett., 2003, 3: 1187.
[5] Malvanker P L, Shinde V M. Anal. Chem., 1991, 116: 1081.
[6] De Boer J, Law R J. J. Chromatogr. A, 2003, 1000(12): 223.
[7] Krupcik J. Fuel Energy Abstracts, 1998, 39(1): 13.
[8] Zhang T H, Shan X Q, Liu R X, et al. Anal. Chem., 1998, 70: 3964.
[9] Shin H S, Park C H, Park S J, et al. J. Chromatogr. A, 2001, 912(1): 119.
[10] WU Xian-hua, HU Qiu-fen, YANG Guang-yu, et al(吴献花, 胡秋芬, 杨光宇, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2006, 26(2): 327.
[11] GUO Ying-na, JIANG Zhuo-song, ZHANG Min, et al(郭英娜, 姜茁松, 张敏, 等). Chinese Journal of Analytical Chemistry(分析化学), 2005, 33(3): 395.
[12] Fu H, Xie C, Dong J, et al. Anal. Chem., 2004, 76(16): 4877.
[13] TAI Xi, HU Qiu-fen, YANG Guang-yu, et al(台希, 胡秋芬, 杨光宇, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2004, 24(1): 125.
[14] SHI Ta-qing, LIANG Pei, LI Jing, et al(施踏青, 梁沛, 李静, 等). Chinese Journal of Analytical Chemistry(分析化学), 2004, 32(11): 1421.
[15] ZHOU Shi-ping, DUAN Chang-qun, LIU Hong-cheng, et al(周世萍, 段昌群, 刘宏程, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2005, 25(10): 1667.
[16] Yoshimara M, Suda H, Okamoto K, et al. Journal of Materials Science, 1994, 29(13): 3399.
[17] Koparnova N, Zlatev Z, Genchev D, et al. Journal of Materials Science，1994，29(1) :103.
[18] Tjog S C, Mend Y Z. Polymer, 1998, 39(22): 5461.
[19] Kobayashi M, Takahashi T, Takimoto J, et al. Polymer, 1995, 36(20): 3927.
[20] Mishra S P, Singh V K, Tiwari D. Appl. Radiat. Isot., 1997, 48: 435.