An aqueous fluorescent sensor for Pb2+ based on phenothiazine-polyamide

Yadian Xie; Han Li; Xingliang Liu; Zhaoqian Wang; Haitang Lv; Jianfang Cao; Chao Zhang; Qiangqiang Jia; Aixia Han

doi:10.1016/j.saa.2018.04.063

An aqueous fluorescent sensor for Pb²⁺ based on phenothiazine-polyamide

Spectrochim Acta A Mol Biomol Spectrosc. 2018 Aug 5:201:193-196. doi: 10.1016/j.saa.2018.04.063. Epub 2018 Apr 30.

Authors

Yadian Xie¹, Han Li², Xingliang Liu¹, Zhaoqian Wang¹, Haitang Lv¹, Jianfang Cao¹, Chao Zhang¹, Qiangqiang Jia³, Aixia Han⁴

Affiliations

¹ Chemical Engineering College, Qinghai University, Xining 810016, Qinghai, China.
² Medical College, Qinghai University, Xining 810016, Qinghai, China.
³ State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, Qinghai, China.
⁴ Chemical Engineering College, Qinghai University, Xining 810016, Qinghai, China. Electronic address: hanaixia@tsinghua.org.cn.

PMID: 29753235
DOI: 10.1016/j.saa.2018.04.063

Abstract

A sensitive and selective fluorescent sensor for Pb²⁺ ion based on phenothiazine-polyamide was built (named sensor PP). Due to introducing of four diethanolamine groups to polyamide, this sensor was totally water soluble. PP could detect Pb²⁺ ion within 1 min in the presence of other metal ions in aqueous solution, the detect limit was 9.11 × 10^-8 M.

Keywords: Fluorescent sensor; Pb(2+) ion; Phenothiazine-polyamide.