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

Abstract

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

CLC Number:

O657

TrendMD:

XIONG Hong-Chun, HU Bin, JIANG Zu-Cheng . A Miniaturization Solid-phase Extraction Technique Designed for Electrothermal Vaporization-Atomic Emission Spectrometry Determination[J]. Chem. J. Chinese Universities, 2000, 21(7): 1035.

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

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