碱性体系-蒸汽发生-原子荧光光谱法测定地质样品中的锌
Determination of Zinc in Geological Samples by Steam Generation- Atomic Fluorescence Spectrometry with Alkaline System
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摘要: 研究了原子荧光光谱法测定锌的新体系,针对基体较为复杂的样品,建立了碱性体系-蒸汽发生-原子荧光光谱测锌的方法。优化了碱性体系锌蒸汽发生的实验条件及仪器测定的参数,加入镍离子作增敏剂,增强了荧光信号,方法检出限为0.24 μg/L,精密度低(小于4.0％,n＝6),锌的标准曲线线性范围为0.5~800.0 μg/L。与传统的酸性体系相比,碱性体系具有更高的灵敏度和更宽的线性范围,并且可以大幅度降低共存元素的干扰。方法应用于国家一级标准物质中锌的分析,测定值与标准值基本吻合,加标回收率为94.1%~1 01.2%。
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关键词:
- 碱性体系 /
- 蒸汽发生-原子荧光光谱法 /
- 地质样品 /
- 锌
Abstract: A method for the determination of zinc, especially in complicated geological samples, by hydride generation atomic fluorescence spectrometry with alkaline system was established. Operation conditions for steam generation from alkaline solution and instrument parameters were investigated and optimized. Adding nickel ion enhanced zinc signals obviously. Under the optimized condition the detection limit of the method for zinc was 0.24 g/L with dynamic linear range of 0.5~800μg/L. In comparison with traditional acid system,new system provides higher sensitivity, wider linearity and less interference from coexistent elements. The method has been applied to the determination of zinc in national geological standard samples with satisfactory results. The recoveries of the method are 94.1%~ 101.2% with precision of less than 4.0％RSD (n＝6).-
Keywords:
- alkaline /
- system /
- steam /
- generation-atomic
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Biurrun M C Yebra, Cid A Moreno, P'erez S Cancela. Fast on-line ultrasound-assisted extraction coupled to a flow injection-atomic absorption spectrometric system for zinc determination in meat samples[J]. Talanta,2005(66):691-695. Biurrun M C Yebra, Cid A Moreno, P'erez S Cancela. Fast on-line ultrasound-assisted extraction coupled to a flow injection-atomic absorption spectrometric system for zinc determination in meat samples[J]. Talanta,2005(66):691-695.
郭小伟,郭旭明.硼氢化钠与锌在水溶液中的反应研究及其分析应用[J].分析化学,1998,26(6):674-678. Sun Hanwen, Suo Ran, Lua Yunkai. Determination of zinc in food using atomic fluorescence spectrometry by hydride generation from organized media[J]. Analytica Chimica Acta,2002 (457):305-310. Sun Hanwen, Suo Ran, Lua Yunkai. Determination of zinc in food using atomic fluorescence spectrometry by hydride generation from organized media[J]. Analytica Chimica Acta,2002 (457):305-310.
郎春燕,谭张琴,陈雪,向兆.挥发化合物发生-原子荧光法测定水中痕量锌[J].理化检验:化学分册,2007,43(9):756-763. 蒋晓凤,盛梅,嵇雅颖.原子荧光光谱法同时测定环境水体中痕量锡和锌[J].环境监测管理与技术,2009,21(2):37-39. Alvarez J, Marco L M, Arroyo J, Rivas.Determination of calcium,potassium,manganese, iron, copper and zinc levels in representative samples of two onion cultivars using total reflection X-ray fluorescence and ultrasound extraction procedure[J]. Spectrochimica Acta Part B,2003(58):2183-2189. Alvarez J, Marco L M, Arroyo J, Rivas.Determination of calcium,potassium,manganese, iron, copper and zinc levels in representative samples of two onion cultivars using total reflection X-ray fluorescence and ultrasound extraction procedure[J]. Spectrochimica Acta Part B,2003(58):2183-2189.
宋武元,钟沛余,梁静,张震坤,郑建国,李岩.最佳逼近算法电感耦合等离子体原子发射光谱测定镀铝锌彩涂板镀层中铝、锌、硅和铁[J].分析化学,2004,32(7):861-865. 陈海春,王宏. 用光度法同时测定合金镀液中的锌和镍[J].材料保护,2008,41(6):78-79. 邓昌爱,廖力夫,刘传湘,付仕福,何博.多元校正电位络合滴定法同时测定合金中铜铅锌[J].冶金分析,2008,28(9):54-57. 邱德仁,陈治江,罗晓雯.氢化物发生的碱性模式[J].光谱学与光谱分析,1994,14(1):77-79. 郭小伟,李立.氢化物-原子吸收和原子荧光法中的干扰及消除[J].分析化学,1986,14(2):151-158. 胡兰,刘跃友,黄安拉.碱性模式氢化物发生-原子荧光光谱法测定多金属矿中的微量铋[J].岩矿测试,2010,29(1):87 -88. Zhang Ni,Sun Genling,Ma Hairui. Determination of ultra-trace selenium in mineral samples by hydride generation atomic fluorescence spectrometry with pressurized-PTFE-vessel acid digestion[J].Minerals Engineering,2007(20):1397-1400. Zhang Ni,Sun Genling,Ma Hairui. Determination of ultra-trace selenium in mineral samples by hydride generation atomic fluorescence spectrometry with pressurized-PTFE-vessel acid digestion[J].Minerals Engineering,2007(20):1397-1400.
汤志勇,张随成,金泽祥,敖愫.碱性体系在线氢化物发生原子荧光光谱法测定铜矿石中痕量砷锑铋[J].岩矿测试,1998,17(4):285-289. 张锂,韩国才.碱性模式氢化物发生原子荧光光谱法测定铁矿石中砷[J].分析测试学报,2006,25(6):120-122. Sun Han-Wen, Suo Ran. Enhancement reagents for simultaneous vapor generation of zinc and cadmium with intermittent flow system coupled to atomic fluores-cence spectrometry[J]. Analytica Chimica Acta,2004(509):71-76. Sun Han-Wen, Suo Ran. Enhancement reagents for simultaneous vapor generation of zinc and cadmium with intermittent flow system coupled to atomic fluores-cence spectrometry[J]. Analytica Chimica Acta,2004(509):71-76.
孙汉文,锁然. 过渡金属元素氢化物发生-原子荧光增敏效应研究[J].光谱学与光谱分析,2008,28(11):2684-2690.
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