4-Amino-3-mercaptobenzoic acid (AMBA) functionalized gold nanoparticles were synthesized through reduction reaction and the resulting gold nanoparticles were characterized by UV–vis spectroscopy, IR spectroscopy, and transmission electron microscopy (TEM). 4-Amino-3-mercaptobenzoic acid functionalized gold nanoparticles have a cooperative effect on recognition of cyhalothrin with distinct changes both in color and absorption properties over other pesticides tested. The detection system presents excellent anti-disturbance ability and can be applied to the determination of cyhalothrin in real different water samples such as Yangtze River water sample and East Lake water samples with the limit of colorimetric detection (LOD) of 0.75 μM. Besides, a test strip, based on AMBA-functionalized gold nanoparticles for cyhalothrin detection, has been developed, optimized and validated. The developed colorimetric mercury sensor system exhibited a highly sensitive and selective response to cyhalothrin.

通过还原反应合成了4-氨基-3-巯基苯甲酸（AMBA）官能化的金纳米颗粒，并通过紫外可见光谱，红外光谱和透射电子显微镜（TEM）对所得的金纳米颗粒进行了表征。4-氨基-3-巯基苯甲酸官能化的金纳米颗粒对氯氟氰菊酯的识别具有协同作用，其颜色和吸收特性均比其他测试农药有明显变化。该检测系统具有出色的抗干扰能力，可用于比色法检测极限（LOD）为0.75μM的实际不同水样中的氟氯氰菊酯的测定，例如长江水样和东湖水样。此外，基于AMBA功能化金纳米颗粒的氯氟氰菊酯检测试纸，已经开发，优化和验证。发达的比色汞传感器系统对氯氟氰菊酯表现出高度敏感和选择性的响应。