摘要
以4-二苯氨基苯甲醛为原料,与水合肼进行缩合反应,设计合成一种识别OCl^(-)的比率型荧光探针。通过光谱分析,加入OCl^(-),荧光发射强度明显升高,溶液颜色由黄色变为无色,实现裸眼识别;加入其他分析物,荧光强度无明显变化。在0.5~1μmol/L的浓度范围内,荧光强度与次氯酸根浓度呈良好的线性关系,最低检出限为0.44μmol/L。该检测线满足国家饮用水残氯量的要求,并成功地应用于水的实际样品中检测次氯酸根。
A fluorescence probe were synthesized in a easy method from condensation reaction of 4-(diphenylamino)benzaldehyde and hydrazine monohydrate has been synthesized and used for the ratiometric detection of OCl^(-).The probe exhibited a strong fluorescence enhancement upon addition of OCl^(-) while showing almost no response to these tested analytes.In the meantime,the solution color obviously changed from yellow to colorless,which showed naked-eye detection of OCl^(-).In the range of 0.5~1 μmol/L,the detection limit of probe for the determination of OCl^(- )was estimated 0.44 μmol/L.The detection limit met residual chlorine of the national drinking water criterion.Moreover,it has been successfully applied to the determination of hypochlorite in water samples.
作者
李漫
郭洁
冯新颖
周晓华
张迪
付博
王铁良
LI Man;GUO Jie;FENG Xinying;ZHOU Xiao-hua;ZHANG Di;FU Bo;WANG Tie-liang(Institute of Agricultural Quality Standards and Testing Technology,Henan Academy of Agricultural Science,Zhengzhou 450002,China;College of Tobacco Science,Henan Agricultural University,Zhengzhou 450002,China)
出处
《化学试剂》
CAS
北大核心
2021年第1期100-104,共5页
Chemical Reagents
基金
河南省农业科学院科技创新创意项目(2020CX05)。
关键词
裸眼识别
次氯酸根
三苯胺
比率
荧光探针
naked-eye
OCl^(-)
triphenylamine
ratiometric
fluorescence probe
作者简介
李漫(1988-),女,河南许昌人,硕士,实验助理,主要研究方向为荧光探针的设计合成及光谱分析;通讯作者:张迪,E-mail:pandy811@163.com。
