title: Matrix-Assisted Plasma Atomization Emission Spectrometry for Surface Sampling Elemental Analysis.
abstract: An innovative technology has been developed involving a simple and sensitive optical spectrometric method termed matrix-assisted plasma atomization emission spectrometry (MAPAES) for surface sampling elemental analysis using a piece of filter paper (FP) for sample introduction. MAPAES was carried out by direct interaction of the plasma tail plume with the matrix surface. The FP absorbs energy from the plasma source and releases combustion heating to the analytes originally present on its surface, thus to promote the atomization and excitation process. The matrix-assisted plasma atomization excitation phenomenon was observed for multiple elements. The FP matrix served as the partial energy producer and also the sample substrate to adsorb sample solution. Qualitative and quantitative determinations of metal ions were achieved by atomic emission measurements for elements Ba, Cu, Eu, In, Mn, Ni, Rh and Y. The detection limits were down to pg level with linear correlation coefficients better than 0.99. The proposed MAPAES provides a new way for atomic spectrometry which offers advantages of fast analysis speed, little sample consumption, less sample pretreatment, small size, and cost-effective.
authors.affiliation: Research Center of Analytical Instrumentation, College of Chemistry, Sichuan University, Chengdu, China, 610064.
authors.forename: Xin
authors.initials: X
authors.lastname: Yuan
authors.affiliation: Research Center of Analytical Instrumentation, Key Laboratory of Bio-resource and Eco-environment, Ministry of Education, College of Life Science, Sichuan University, Chengdu, China, 610064.
authors.forename: Xuefang
authors.initials: X
authors.lastname: Zhan
authors.affiliation: Research Center of Analytical Instrumentation, Key Laboratory of Bio-resource and Eco-environment, Ministry of Education, College of Life Science, Sichuan University, Chengdu, China, 610064.
authors.forename: Xuemei
authors.initials: X
authors.lastname: Li
authors.affiliation: Research Center of Analytical Instrumentation, College of Chemistry, Sichuan University, Chengdu, China, 610064.
authors.forename: Zhongjun
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: Research Center of Analytical Instrumentation, Key Laboratory of Bio-resource and Eco-environment, Ministry of Education, College of Life Science, Sichuan University, Chengdu, China, 610064.
authors.forename: Yixiang
authors.initials: Y
authors.lastname: Duan