title: [Determination of arsenic and selenium in the industrial sulphur].
abstract: In this paper, the method of determining arsenic and selenium in the industrial sulphur sample has been studied. Carbon tetrachloride-boromine was used to dissolve the sulphur sample in classical methods, which is complex and harmful, and a little arsenic and selenium will be lost. In this paper, nitric acid and perchloric acid were used to dissolve the sulphur sample, which was simple, and scarcely arsenic and selenium were lost. Under the selected conditions, determination of arsenic and selenium can be determined simultaneously by HG-ICP-AES. The determination limits of arsenic and selenium are 0.6 ng.mL-1 and 0.7 ng.mL-1, respectively, the relatively standard deviations(RSD) (n = 8) are 2.1% for arsenic and 1.9% for selenium, respectively, and the recoveries are 99.6% for arsenic and 101% for selenium, respectively, which was a very satisfying result.
authors.affiliation: Guangxi Research Center of Analysis, Nanning 530022, China.
authors.forename: Zhi-zhong
authors.initials: ZZ
authors.lastname: Li
authors.forename: Xiong-jun
authors.initials: XJ
authors.lastname: Guan
authors.forename: Jian-ling
authors.initials: JL
authors.lastname: Wu
authors.forename: Hui-zhong
authors.initials: HZ
authors.lastname: Wen
mesh_terms: D001151:Arsenic / Q000032:analysis*; D004785:Environmental Pollutants / Q000032:analysis*; D017022:Flow Injection Analysis / Q000379:methods; D012643:Selenium / Q000032:analysis*; D013054:Spectrophotometry, Atomic / Q000379:methods; D013455:Sulfur / Q000737:chemistry*
chemical_list: D004785:Environmental Pollutants; D013455:Sulfur; D012643:Selenium; D001151:Arsenic