MULTIELEMENT SPECIATION IN VEGETABLE FOODSTUFFS BY GEL-PERMEATION CHROMATOGRAPHY (GPC) AND TOTAL REFLECTION X-RAY-FLUORESCENCE (TXRF)

被引：19

作者：

GUNTHER, K ^{[1
]}

VONBOHLEN, A ^{[1
]}

机构：

[1] INST SPEKTROCHEM & ANGEW SPEKT, W-4600 DORTMUND 1, GERMANY

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 1991年 / 46卷 / 10期

关键词：

D O I：

10.1016/0584-8547(91)80191-5

中图分类号：

O433 [光谱学];

学科分类号：

0703 [化学]; 070302 [分析化学];

摘要：

The combination of gel permeation chromatography (GPC) and total reflection X-ray fluorescence (TXRF) is used for screening tasks in the speciation of elements in vegetables. Exemplary cytosols of lamb's lettuce and cauliflower are separated by a Sephadex-G-50 column and the obtained fractions are analysed directly by TXRF with internal Co-standard. Total reflection X-ray fluorescence analyses are rapid and easy and require only minute samples. The distributions of P, S, Cl, Br, K, Ca, Fe, Cu, Zn, Rb, Mn and Sr are investigated in the different fractions and the results are interpreted. For a first characterization of element species in solution, the GPC-TXRF off-line coupling is a new and very suitable system.

引用

页码：1413 / 1419

页数：7

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