高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (7): 1035.

• 研究快报 • 上一篇    下一篇

一种用于电热蒸发-原子光谱的微型化固相萃取技术

熊宏春, 胡斌, 江祖成   

  1. 武汉大学化学系, 武汉 430072
  • 收稿日期:2000-01-06 出版日期:2000-07-24 发布日期:2000-07-24
  • 通讯作者: 胡 斌(1965年出生),男,博士,副教授,主要从事等离子体光谱/质谱及联用技术研究.
  • 基金资助:

    国家自然科学基金(批准号:29875022);武汉市晨光计划项目资助

A Miniaturization Solid-phase Extraction Technique Designed for Electrothermal Vaporization-Atomic Emission Spectrometry Determination

XIONG Hong-Chun, HU Bin, JIANG Zu-Cheng   

  1. Department of Chemistry, Wuhan University, Wuhan 430072, China
  • Received:2000-01-06 Online:2000-07-24 Published:2000-07-24

关键词: 微型化固相萃取, 电热蒸发, 电感耦合等离子体原子发射光谱, 稀土元素

Abstract: Anew method of combination micro-column packed with 2-ethylhexyl hydrogen-2-ethylhexyl phosphonate(P507 ) extraction resin with electrothermal vaporization inductively coupled plasma atomic emission spectrometry(ETV-ICP-AES) for separation and determination of trace rare earth elements(lanthanum, europium, yttrium and ytterbium) has been developed. Various influencing factors, such as the acidity of solution, flow rate and the volume of the sample, the length of the micro column on the separation and the preconcentration are examined in detail, the effect of the existence of organic matrix and the pre-ashing temperature on determination of rare earth elements by ETV-ICP-AES has also been studied.

Key words: Miniaturization solid-phase extraction, Electrothermal vaporization, Inductively coupled plasma-atomic emission spectrometry, Rare earth elements

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