实验考察和理论分析了介质酸度对砷、硒、镉和镍的化学蒸气发生反应的影响.实验结果表明,在酸性较强的盐酸介质中砷、硒的蒸气发生具有较高的效率,其最佳酸性范围较宽;在弱酸性盐酸介质中,镉和镍的蒸气发生具有较高的效率,其最佳酸度范围较窄.基于过渡中间态理论,探讨了蒸气发生反应历程.考察和比较了络合剂、金属离子、表面活性剂的增感效应,提出了8-羟基喹啉、邻菲罗啉、钴离子、阳离子表面活性剂CTAB和非离子表面活性剂Triton X-100对原子荧光的增感效应机理.
[1] Pawel Pohl. Recent advances in chemical vapour generation via reaction with sodium tetrahydroborate [J]. TrAC: Trends in Analytical Chemistry 2004, 1(1).
[2] R. Antolin, G. Borge, T. Posada. Optimisation of volatile elements determination by flow injection hydride generation-inductively coupled plasma spectrometry in electrolytic manganese [J]. Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics 2007, 1/2(1/2).
[3] Ming-Li Chen, Ai-Mei Zou, Yong-Liang Yu. Hyphenation of flow injection/sequential injection with chemical hydride/vapor generation atomic fluorescence spectrometry [J]. Talanta: The International Journal of Pure and Applied Analytical Chemistry 2007, 4(4).
[4] Aderval S. Luna, Ralph E.Sturgeon, Reinaldo C.de Campos. Chemical Vapor Generation: Atomic Absorption by Ag, Au, Cu, and Zn Following Reduction of Aquo Ions with Sodium Tetrahydroborate (III) [J]. Analytical chemistry 2000, 15(15).
[5] Yong-Lai Feng, Joseph W.Lam, Ralpha E.Sturgeon. Expanding the scope of chemical vapor generation for noble and transition metals [J]. Analytical Communications 2001, 11(11).
[6] Duan XC., McLaughlin RL., Brindle ID., Conn A.. Investigations into the generation of Ag, Au, Cd, Co, Cu, Ni, Sn and Zn by vapour generation and their determination by inductively coupled plasma atomic emission spectrometry, together with a mass spectrometric study of volatile species. Determinati [J]. Journal of Analytical Atomic Spectrometry 2002, 3(3).
[7] YAN Xiuping, NI Zheming. Vapour generation atomic absorption spectrometry [J]. Analytica Chimica Acta 1994, 291.
[8] RAMESH KUMAR A, RIYZUDDIN P. Mechanism of volatilehydrid formation and their atomization in hydride generation atomic absorption spectrometry [J]. Analytical Sciences 2005, 21.
[9] 孙汉文. 原子光谱分析 [M]. 北京:高等教育出版社 1999.
[10] SHRIVER D F, ATHINS P W, LANGFORD C H, 高忆慈, 史启祯, 曾克慰. 无机化学 [M]. 北京:高等教育出版社 1997.
[11] LADBORDA F, BOLEA E, BARANGUAN M T. Hydride generation in analytical chemistry and nascent hydrogen:when is it going to be over? [J]. Spectrochimica Acta Part B:Atomic Spectroscopy 2002, 57(04).
[12] Spiros A. Pergantis, Witold Winnik, Edward M. Heithmar. Investigation of arsine-generating reactions using deuterium-labeled reagents and mass spectrometry [J]. Talanta: The International Journal of Pure and Applied Analytical Chemistry 1997, 10/12(10/12).
[13] KREEVOY M M, HUTCHINS J E C. Acid-catalyzed hydrolysis and isotope exchange in LiBH3CN [J]. Journal of the American Chemical Society 1969, 91(15).
[14] DAVIS R E, BROMELS E, KIBBY C L. Boron Hydrides III:hydrolysis of sodium borohydride in aqueous solution [J]. Journal of the American Chemical Society 1962, 84(06).
[15] 喻昕, 廖振环, 江祖成. FI-HG-ICP-AES测定痕量镉的研究 [J]. 武汉大学学报(自然科学版) 1997, 43(06).
[16] POTTER I D, JAMES B D. Phosphine displacement reactions by some alkyl-substituted 1, 10-phenanthrolines with bis(triphenylphosphine)copper(I) tetrahydroborate [J]. Inorganica Chimica Acta 1993, 207(02).
[17] Ian D. Potter, Bruce D. James. The interactions of added phenanthroline and triphenylphosphine ligands with the copper(I) tetrahydroborates (phen)Cu(BH_4) and (phen)(PPh_3)Cu(BH_4): Probing the character of species in solution [J]. Polyhedron: The International Journal for Inorganic and Organometallic Chemistry 1999, 8/9(8/9).
[18] GUO Xuming, SUN Zhenhua, HUANG Benli. Co-hydride enhancement effects in cadmium, zinc and thallium hydride generation measurements [J]. Chemical Research in Chinese Universities 1999, 20(zk).
[19] KOJIMA Y, SUZUKI K I, FUKUMOTO K. Hydrogen generateon using sodium borohydride soluteion and metal catalyst coated on metal oxide [J]. International Journal of Hydrogen Energy 2002, 27.
[20] SAMZ-MEDEL A, DE LA CAMPA M R F, VALDéS-HEVIAY TEMPRANO M C. Surfactant-based ordered media in analytical atomic spectrometry [J]. Talanta 1993, 40(11).
[21] DE LA CAMPA M R F, SEGOVIA GARCía E, VALDéS-HEVIAY TEMPRANO M C. Effects of organized media on the generateon of volatile species for atomic spectrometry [J]. Spectrochimica Acta 1995, 50B.
[22] Alfredo Sanz-Medel, Maria del Rosario Fernandez de la Campa, Elisa Blanco Gonzalez, Maria Luisa Fernandez-Sanchez. Organised surfactant assemblies in analytical atomic spectrometry [J]. Spectrochimica Acta, Part B. Atomic Spectroscopy 1999, 2(2).
[23] AIZPúN FERNáNDEZ B, VALDéS-HEVIAY TEMPRANO M C, DE LA CAMPA M R F. Determination of arsenic by inductively-coupled plasma atomic emission spectrometry enhanced by hydride generation from organized media [J]. Talanta 1992, 39(11).
[24] Tomas Matousek, Ralph E. Sturgeon. Surfactant assisted chemical vapour generation of silver for AAS and ICP-OES: a mechanistic study [J]. Journal of Analytical Atomic Spectrometry 2003, 5(5).
[25] VALDS-HEVIZY TEMPRANO M C, AIZPúN FERNández B, DE LA CAMPA M R F. Study of the influence of ordered media on the determination of lead by hydride generation inductively coupled plasma atomic emission spectrometry [J]. Analytica Chimica Acta 1993, 283(01).
