Abstract：
A cloth-based analytical device combined with electrochemiluminescence detection (CAD-ECL) was described for rapid determination of histamine (HA). The CAD device was produced by screen-printing a conductive carbon ink onto a patterned hydrophobic electrochemical microfluidic chamber to fabricate the three-carbon electrode system on a single hydrophilic cloth. The introduction of carbon nanodots linked to chitosan on the working carbon electrode surface enhanced the catalytic performance and overcame the resistance of the cotton fiber material. On this basis, the enhancement of the electrochemiluminescence (ECL) signal of the tris(2,2\'-bipyridyl) ruthenium(II) complex, caused by HA, was observed in a phosphate buffer solution at pH 7.6. The proposed CAD-ECL sensor was successfully applied to the quantification of HA in fish and fishery samples with good linearity between ECL intensity and the logarithm of HA concentration in the range 1.0 to 1000.0 µg L-1 with a low detection limit of 0.82 µg L-1.
摘要：
描述了一种基于布料的分析装置，该装置与电化学发光检测（CAD-ECL）相结合，用于快速测定组胺（HA）。通过将导电碳墨丝网印刷到图案化的疏水性电化学微流体室上以在单个亲水布上制造三碳电极系统来制造CAD装置。在工作碳电极表面引入与壳聚糖连接的碳纳米点增强了棉纤维材料的催化性能并克服了电阻。在此基础上,三（2,2'-联吡啶）钌（II）配合物的电化学发光（ECL）信号的增强，由HA引起，在pH7.6的磷酸盐缓冲溶液中观察到。拟议的CAD-ECL传感器已成功应用于鱼类和渔业样品中的HA定量，ECL强度与HA浓度对数之间的线性良好，范围为1.0至1000.0µgL-1，检测限低为0.82µgL-1。
