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高效液相色谱-等离子体质谱技术在溴元素形态分析中的应用

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岩矿测试 2008年第6期27卷 483-484页

作者： kenneth r neubauer Pamela A Perrone Wilhad M reuter 珀金埃尔默公司分析科学部美国康涅狄格州Shelton CT 06484

溴是一种在自然水体中都含有的元素,通常以Br-的形式存在.目前最常用的水净化方式就是向水中通入臭氧以杀灭细菌;而臭氧分解的副产物即为Br-转换成的BrO-3,这是一种公认的致癌物质.

关键词：元素形态分析高效液相色谱质谱技术等离子体应用 BrO3^- 溴自然水体

利用GC-ICP-MS分析生物组织中的汞形态

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环境化学 2017年第10期36卷 2295-2296页

作者： Joaudimir Castro kenneth neubauer 张桢 Universitéde Pau et des Pays de l'Adour Avenue de l'Université 64012PauFrance PerkinElmer Inc.SheltonCT USA 珀金埃尔默企业管理(上海)有限公司上海201203

汞的形态对于其对生物的毒性具有非常重要的影响.本文利用气相色谱仪与ICP-MS进行联用,对海产品中的汞形态进行精确分离和定量,并给出了优化后的接口条件、色谱条件等仪器参数.

关键词：汞形态 ICP-MS 联用技术

Spectroscopic studies of fuel recycling and impurity behaviors in the divertor region of Wendelstein 7-X

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Plasma Science and Technology 2019年第10期21卷 17-27页

作者： Yanling WEI Erhui WANG Yunfeng LIANG Southwestern Institute of Physics Forschungszentrum Jülich GmbH Institut für Energie-und Klimaforschung—PlasmaphysikPartner of the Trilateral Euregio Cluster(TEC) Max Planck Institute for Plasma Physics Australian National University

The first divertor operation phase (OP1.2a) was carried out on Wendelstein 7-X in the second half of 2017. Fuel recycling and impurity behaviors in the divertor region were investigated by employing a newly built ultraviolet–visible–near infrared overview spectroscopy system. The characteristic spectral lines of the working gases (hydrogen and helium), intrinsic impurities (carbon, oxygen and iron), and seeded impurities (neon and nitrogen) were identified and analyzed. The divertor electron temperature and density were measured using He I (667.8, 706.5, and 728.1 nm) line intensity ratios. The Hα(656.3 nm), He I (587.6 nm), C II (514.5 nm), and O I (777.2 nm) emissions were investigated over a wide range of operating conditions. The results showed that fuel and impurity emissions in the divertor region exhibit a strong dependence on magnetic topology and plasma conditions. The levels of Hα, He I, C II, and O I emissions are all reduced moving from the standard configuration to the high mirror configuration, and even further reduced for the high iota configuration, which is associated with decreasing connection length in these island divertor configurations. The H/He influx ratio shows that the plasma is a mixture of helium and hydrogen. The neutral and impurity influxes from the divertor target tend to increase with increasing divertor electron temperature.

关键词： spectroscopy diagnostic fuel recycling impurity