Detoxication of the fluoride in the drinking water by tea-leaves charcoal, and analysis of high concentration of fluoride in tea

茶叶炭对饮用水中氟化物的解毒及茶叶中高浓度氟化物的分析

• 批准号: 24658278
• 负责人: KAWAKAMI Tomonori
• 金额: $ 1.41万
• 依托单位: Toyama Prefectural University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24658278/
• 关键词: フッ素; イオンクロマトグラフ; 茶; 茶葉炭

Extremely high concentration of fluoride, which is about 50mg/l, is detected in both black tea and green tgea by an ion chromatograph. While the concentration is only 1 mg/l when it is detected by a spectrophotometry method. In the case that the detection of the ion chromatograph is correct, fluoride would form safe complex to the human body, since there have been no reports that tea causes fluorosis. In this research, identification of the chemical which brings the peak on the chromatograph was intensively done. It was found that the chemical could not be a fluoride but a some kind of inorganic material, however, it was failed to identify it.

用离子色谱仪在红茶和绿茶中都检测到极高浓度的氟，约为50 mg/L。而用分光光度法检测时，浓度仅为1 mg/L。在离子色谱仪检测正确的情况下，氟化物会对人体形成安全的络合物，因为目前还没有茶引起氟中毒的报道。本研究对色谱峰的化学成分进行了较为深入的鉴定。发现该化学物质不可能是氟化物，而是一种无机物质，但未能对其进行鉴定。

项目成果

Safe drinking water supply in Sri Lanka, a collaborative research between Sri Lanka and Japan

斯里兰卡与日本的合作研究斯里兰卡的安全饮用水供应

• 发表时间: 2014
• 作者: KAWAKAMI Tomonori;Project overview
• 通讯作者: Project overview

スリランカにおける飲料水中のフッ素汚染の現状と対策

斯里兰卡饮用水氟污染现状及对策

• 发表时间: 2012
• 期刊: 土木学会論文集 G(環境)
• 作者: Komatsu;G.;Kumar;P.S.;Goto;K.;Sekine;Y.;Giri;C.;Matsui;T.;本山亜友里・川上智規・S.K. Weragoda・奥川光治・芹川裕加・袋布昌幹・高松さおり
• 通讯作者: 本山亜友里・川上智規・S.K. Weragoda・奥川光治・芹川裕加・袋布昌幹・高松さおり

Project overview Safe drinking water supply , collaborative research between Sri Lanka and Japan

项目概况 安全饮用水供应，斯里兰卡和日本之间的合作研究

• 作者: KAWAKAMI Tomonori;NAGASAWA Shiori;NISHINO Miki;MIYAZAKI Hikaru;MOTOYAMA Ayuri;S. K. Weragoda;Tushara Chaminda;Sudharma Yatigammana;KAWAKAMI Tomonori
• 通讯作者: KAWAKAMI Tomonori

mprovement in the Performance of Fluoride Removal by Acid Treatment on Chicken Bone Char

酸处理鸡骨炭除氟性能的改进

• 发表时间: 2012
• 作者: Hikaru Miyazaki;Shiori Nagasawa;Ayuri Motoyama;Tomonori Kawakami
• 通讯作者: Tomonori Kawakami

Project overview, Safe drinking water supply in Sri Lanka, a collaborative research between Sri Lanka and Japan

项目概述，斯里兰卡的安全饮用水供应，斯里兰卡和日本之间的合作研究

• 发表时间: 2014
• 作者: 並木則行;他;袴田香奈子;KAWAKAMI Tomonori
• 通讯作者: KAWAKAMI Tomonori