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Published on: June 28, 2019
Detection of organic arsenic based on acid-base stable coordination polymer
Cong Wang1, Guojian Ren2, Qinyue Tan2
1Key Laboratory of Advanced Metarials of Tropical Island Resources, Ministry of Education, School of Science, Hainan University, Haikou 570228, China; School of Chemical Engineering and Technology Hainan University, Haikou, Hainan 570228, China.
Abstract:
Organic arsenic, usually found in animal feed and livestock farm wastewater, is a carcinogenic and life-threatening substance. Hence, for the rapid and sensitive detection of organic arsenic, the development of new fluorescent sensors is quite essential. Here, an acid-base stable coordination polymer (HNU-62) was constructed by the introduction of hydrophobic fluorescence ligand, which can be used as a highly selective sensor for the detection of roxarsone (ROX) in water. The limit of detection (LOD) of HNU-62 for ROX was 4.5 × 10-6 M. Furthermore, HNU-62 also exhibits good anti-interference and recyclability, which can be used in detecting ROX in real samples of pig feed. This work provides an alternative approach for the construction of water-stable coordination polymer-based fluorescence sensors.
