DETERMINATION OF TRACE-METALS FORMING LARGE MOLECULAR-COMPLEXES IN NATURAL-WATERS AS ESTIMATED BY ULTRAFILTRATION LIQUID-CHROMATOGRAPHY ATOMIC SPECTROSCOPY

被引：7

作者：

KOBAYASHI, K

AKAGI, T

HARAGUCHI, H

机构：

[1] UNIV TOKYO, FAC SCI, DEPT CHEM, BUNKYO KU, TOKYO 113, JAPAN

[2] NAGOYA UNIV, FAC ENGN, DEPT APPL CHEM, CHIKUSA KU, NAGOYA, AICHI 464, JAPAN

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1990年 / 63卷 / 02期

关键词：

D O I：

10.1246/bcsj.63.554

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Concentration of trace metals forming complexes with large organic molecules in natural waters have been determined. Natural water samples (sea water and lake water) were filtered through a membrane filter (pore size: 0.45 μm) just after sampling, and concentrated by ultrafiltration. The concentrated natural water samples were fractionated by high performance gel filtration chromatography, and metal ion concentration in each fraction was determined by inductively coupled plasma atomic emission spectrometry and/or by graphite furnace atomic absorption spectrometry. Concentration of zinc forming large molecular complexes (LMC) in sea water was 0.07 ng mL-1, and that in lake water was 0.06 ng mL-1. Copper, iron, vanadium, and molybdenum forming LMC in natural waters were also determined. The present results suggest the existences of LMC-forming metal ions, some of which may be metalloenzymes dissolved in natural waters.

引用

页码：554 / 558

页数：5

共 20 条

[1] SIMULTANEOUS MULTIELEMENT DETERMINATION OF TRACE-METALS IN SEA-WATER BY INDUCTIVELY-COUPLED PLASMA ATOMIC EMISSION-SPECTROMETRY AFTER COPRECIPITATION WITH GALLIUM [J].