Glyphosate is an organophosphorus herbicide that is applied to the leaves of plants and crops to kill broadleaf plants and grasses. In this paper, for the first time, a field deployable, user-friendly, portable and rapid electrochemical pesticide sensing system is presented that can screen for glyphosate in produce run-off/extract. ElectrochemSENSE comprises the follow-ing parts: A polymer based disposable substrate with metallized electrodes that are surface treated with polyclonal antibodies of glyphosate and a custom electronic reader capable of reporting pesticide contamination. Utilizing the principles of capacitive current changes due to selective binding of glyphosate to its capture probe, reporting was achieved rapidly (in under 5 min). ElectrochemSENSE was tested to screen for glyphosate concentrations on produce samples above or below the globally accepted metric criterion, otherwise known as the Maximum Residue Level (MRL). Experiments were conducted on 4 produce types-ap- ples (MRL: 0.2 ppm), strawberries (MRL: 0.2 ppm), bell peppers (MRL: 0.1 ppm) and carrots (MRL: 5 ppm). To further add functionality and increase prediction accuracy-a machine learning binary classifier was integrated with the device as a proof-of-concept so that sensor's response can be trained and characterized to perform with high accuracy, thereby serving as an analytics medium which minimizes error rate. Utilizing this system-the sensor's limit of detection has been determined to be 0.01 ppm (10 ng/mL) considering the permissible Field Operating Range (FOR) for glyphosate residue in various tested produce.

草甘膦是一种有机磷除草剂，可用于植物和农作物的叶子，以杀死阔叶植物和草。本文首次提出了一种可现场部署，用户友好，便携式且快速的电化学农药感测系统，该系统可筛选生产流失/提取物中的草甘膦。ElectrochemSENSE包括以下部分：具有金属化电极的聚合物基一次性基材，该表面已用草甘膦多克隆抗体进行了表面处理，还拥有能够报告农药污染的定制电子阅读器。利用由于草甘膦与其捕获探针的选择性结合而引起的电容性电流变化原理，可以快速（在5分钟内）完成报告。测试ElectroSENSENSE可以筛选出高于或低于全球公认的度量标准（也称为最大残留量标准（MRL））的农产品样品中的草甘膦浓度。对4种农产品类型（MRL：0.2 ppm），草莓（MRL：0.2 ppm），甜椒（MRL：0.1 ppm）和胡萝卜（MRL：5 ppm）进行了实验。为了进一步增加功能并提高预测准确性，将机器学习二进制分类器与该设备集成在一起作为概念证明，以便可以训练传感器的响应并对其进行表征以实现高精度，从而用作将错误最小化的分析介质。率。使用此系统-传感器的检测极限已确定为0。