Highly Sensitive Monitoring of Humic Substances in Environment with a Fluorescent Labeling Reagent

使用荧光标记试剂高灵敏度监测环境中的腐殖质

• 批准号: 10680501
• 负责人: YAMADA Etsu
• 金额: $ 1.86万
• 依托单位: KYOTO INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10680501/
• 关键词: Humic Substances; Fluorescence Spectrometry; Gel Chromatography; Molecular Weight; Origin; Acidification of Soils; Aluminum; Speciation; 蛍光ラベル化剤; ルモガリオン; 酸性雨

Humic substances, which interact strongly with toxic heavy metals and may be precursors of trihalomethane (THM) formed during water treatment with chlorine, are the major organic constituents of fresh water. However, few studies about the behavior of humic substances in environmental water have been reported.1) Simultaneous determinations of the concentration and molecular weight of humic substances in concentrated and nonconcentrated environmental water samples by gel chromatography with a fluorescence detector were developed. The concentrations of aquatic humic substances in rivers were high in the summer and low in the winter. The ratio of the higher molecular weight of humic substances was larger in the warmer season than in the cooler season. The main origin of aquatic humic substances in river water may be humic substances from soils around the rivers.2) The damage of trees caused by the toxicity of mobile aluminum may be one of the possible pathways of forest decline due to acidic deposition. Flow-injection analysis with fluorescent detection of the lumogallion complex after Al fractionation with cation and anion exchangers was applied to chemical speciation of aluminum in soil extracts

腐殖酸是淡水中的主要有机成分，它与有毒重金属有强烈的相互作用，可能是氯处理水过程中生成三卤甲烷（THM）的前体物质。本文建立了一种用凝胶色谱-荧光检测器同时测定浓缩和非浓缩环境水样中腐殖物质的浓度和分子量的方法。河流中水生腐殖物质的浓度夏季高，冬季低。高分子量腐殖物质的比例在暖季大于冷季。河水中水生腐殖物质的主要来源可能是河流周围土壤中的腐殖物质。2）移动的铝毒性对树木的伤害可能是酸性沉降导致森林衰退的可能途径之一。采用流动注射分析法，通过阳离子和阴离子交换剂分离铝后荧光检测镓配合物，用于土壤提取物中铝的化学形态分析

项目成果

Etsu YAMADA: "Determination and Behavior of Humic Substances as Precursors of Trihalomethane in Environmental Water." Analytical Sciences. 14. 372-332 (1998)

Etsu YAMADA：“环境水中作为三卤甲烷前体的腐殖质物质的测定和行为。”

E. YAMADA: "Determination and the Behavior of Trace Amounts of Chloride and Bromide Ions in Environmental Waters such as Rain and River Water"Analytical Sciences. 13. 385-390 (1997)

E. YAMADA：“雨水和河水等环境水中痕量氯离子和溴离子的测定及其行为”分析科学。

Etsu YAMADA: "Behavior and Origin of Atomospheric NO_2, SO_2 and O_3 in Mountains around the Kyoto Basin"Bu ll. Chem. Soc. Jpn.. (In Press).

Etsu YAMADA：“京都盆地周围山区大气NO_2、SO_2和O_3的行为和起源”Bu ll。

E. YAMADA, K. DOI, K. OKANO and Y. FUSE: "Simultaneous Determinations of the Concentration and Molecular Weight of Humic Substances in Environmental Water by Gel Chromatography with a Fluorescence Detector"Analytical Sciences. 16. 125-129 (2000)

E. YAMADA、K. DOI、K. OKANO 和 Y. FUSE：“通过凝胶色谱法和荧光检测器同时测定环境水中腐殖质的浓度和分子量”分析科学。

Etsu YAMADA: "Determination and the Behavior of Trace Amounts of Chloride and Bromide Ions in Environmental Waters such as Rain and River Waters"Analytical Sciences. 13. 385-390 (1997)

Etsu YAMADA：“雨水和河水等环境水中痕量氯离子和溴离子的测定和行为”分析科学。