Rapid "turn-on" photoluminescence detection of bisulfite in wines and living cells with a formyl bearing bis-cyclometalated Ir( III) complex

被引：22

作者：

Gao, Hongfang ^{[1
]}

Qi, Hetong ^{[2
]}

Peng, Yijin ^{[1
]}

Qi, Honglan ^{[1
]}

Zhang, Chengxiao ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Key Lab Analyt Chem Life Sci Shaanxi Prov, Sch Chem & Chem Engn, Xian 710062, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, Sch Sci, Dept Appl Chem, Xian 710049, Peoples R China

来源：

ANALYST | 2018年 / 143卷 / 15期

基金：

中国博士后科学基金; 美国国家科学基金会;

关键词：

FLUORESCENT-PROBE; IRIDIUM(III) COMPLEX; SELECTIVE DETECTION; ELECTROGENERATED CHEMILUMINESCENCE; RATIOMETRIC DETECTION; ENERGY-TRANSFER; SULFUR-DIOXIDE; SULFITE; DERIVATIVES; IONS;

D O I：

10.1039/c8an00640g

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new photoluminescence (PL) probe based on a formyl bearing bis-cyclometalated Ir(iii) complex, [Ir(ppy)(2)phen-CHO]+PF6- (1), is synthesized and applied to the selective detection of a bisulfite anion (HSO3-). Probe 1 is prepared using 2-phenylpyridine (ppy) as the C<^>N main ligand and 1,10-phenanthroline-5-carboxaldehyde (phen-CHO) as the N<^>N ancillary ligand. Probe 1 displayed excellent selective PL enhancement in response to HSO3- in acetic acid-sodium acetate buffer solution (pH = 5.0). The increase of PL signal is directly proportional to the concentration of HSO3- in the range of 2 M to 45 M with a detection limit of 0.9 M using 50 M probe 1 and in the range of 0.5 M to 6 M with a detection limit of 0.3 M using 10 M probe 1. More importantly, probe 1 can respond to HSO3- rapidly within 40 s. Furthermore, probe 1 was successfully applied to detect HSO3- in real white wines and the bioimaging of HSO3- in living cells. The superior properties of probe 1 make it of great potential use for studying the effects of HSO3- in other biosystems.

引用

页码：3670 / 3676

页数：7

共 36 条

[1] Green luminescent iridium(III) complex immobilized in fluoropolymer film as optical oxygen-sensing material [J].