Sensitive Colorimetric and Fluorescent Detection of Mercury Using Fluorescein Derivations

• 作者: Caixia Yin Fangjun Huo Jing Su Shuo Jin Xuxiu Yan Yutao Yang Zhihui Xie
• 来源期刊: 生物传感器(英文)
• 学科: 化学
• 关键词: FLUORESCEIN HYDRAZIDE Hg2+ Fluorescent UV-VISIBLE Sensor
• 年，卷（期）: 2012,（3）
• 页码范围: 44-52
• 页数: 9页
• 分类号: O6

摘要

A colorimetric and fluorometric dual-model probe for mercury (II) ion was developed employing fluorescein hydrazide (FH) in ethanol-HEPES solution (1:1, v/v, pH 8.0). The probe exhibited high selectivity and sensitivity for Hg2+ detection using UV/Vis and fluorescence spectroscopy. Addition of Hg2+ caused a visual color change from colorless to coloured and a fluorescence change from colorless to bright green. Other metal ions did not interfere with the detection of Hg2+.