title: [The progress in speciation analysis of trace elements by atomic spectrometry].
abstract: The main purpose of the present work is to review the different non-chromatographic methods for the speciation analysis of trace elements in geological, environmental, biological and medical areas. In this paper, the sample processing methods in speciation analysis were summarized, and the main strategies for non-chromatographic technique were evaluated. The basic principles of the liquid extractions proposed in the published literatures recently and their advantages and disadvantages were discussed, such as conventional solvent extraction, cloud point extraction, single droplet microextraction, and dispersive liquid-liquid microextraction. Solid phase extraction, as a non-chromatographic technique for speciation analysis, can be used in batch or in flow detection, and especially suitable for the online connection to atomic spectrometric detector. The developments and applications of sorbent materials filled in the columns of solid phase extraction were reviewed. The sorbents include chelating resins, nanometer materials, molecular and ion imprinted materials, and bio-sorbents. Other techniques, e. g. hydride generation technique and coprecipitation, were also reviewed together with their main applications.
authors.affiliation: Key Lab of Fishery Ecology Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences; Key Lab of Aquatic Product Processing, Ministry of Agriculture, Guangzhou, China. zh-wang1211@163.com
authors.forename: Zeng-Huan
authors.initials: ZH
authors.lastname: Wang
authors.affiliation: Key Lab of Fishery Ecology Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences; Key Lab of Aquatic Product Processing, Ministry of Agriculture, Guangzhou, China.
authors.forename: Xu-Nuo
authors.initials: XN
authors.lastname: Wang
authors.affiliation: Key Lab of Fishery Ecology Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences; Key Lab of Aquatic Product Processing, Ministry of Agriculture, Guangzhou, China.
authors.forename: Chang-Liang
authors.initials: CL
authors.lastname: Ke
authors.affiliation: Key Lab of Fishery Ecology Environment, Guangdong Province, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences; Key Lab of Aquatic Product Processing, Ministry of Agriculture, Guangzhou, China.
authors.forename: Qin
authors.initials: Q
authors.lastname: Lin
mesh_terms: D002614:Chelating Agents; D007554:Isotopes; D052616:Solid Phase Extraction; D013057:Spectrum Analysis; D014131:Trace Elements / Q000032:analysis*
chemical_list: D002614:Chelating Agents; D007554:Isotopes; D014131:Trace Elements