基于智能手机的多通道电化学检测装置  

Smartphone-Based Multi-Channel Electrochemical Device

作　　者：韦漪 陈星 许少腾[1,2] 高跃明 WEI Yi;CHEN Xing;XU Shaoteng;GAO Yueming(College of Physics and Information Engineering,Fuzhou University,Fuzhou,Fujian,350108;Key Lab of Medical Instrumentation,Pharmaceutical Technology of Fujian Province,Fuzhou,Fujian,350108)

机构地区：[1]福州大学,物理与信息工程学院,福建福州350108 [2]福州大学,福建省医疗器械和医药技术重点实验室,福建福州350108

出　　处：《生命科学仪器》2023年第2期111-115,共5页Life Science Instruments

摘　　要：目的:设计了一款基于智能手机的多通道电化学检测装置,能够极大地简化操作步骤、提高检测效率,满足多种场景下的即时检测需求。方法:开发出多通道电路,各通道均可独立运行、实现多种电化学测试方法;设计出两级放大电路,电流检测灵敏度提高至10-8A;同时在智能手机APP上实现了各通道检测量程自调节功能。结果:实验表明,多通道电化学检测装置能够准确地进行电化学方法的检测,装置的变异系数小于1.9765%(n=3),证明该装置具有较好的可重复性和稳定性;通道之间的检测差异小于0.745%(n=3),证明该装置的通道间一致性高。装置和电化学工作站的检测差异小于1.671%(n=3),证明该装置的可靠性好。结论:该装置在进行电化学检测时具有较高的灵敏度和准确性,具有极大的应用价值。Objective:A smartphone-based multi-channel electrochemical device was designed,which can greatly simplify the operation steps,improve the testing efficiency,and meet the demand for point-of-care testing in various scenarios.Methods:The multi-channel circuit was developed,and its each channel can be operated independently and realize multiple electrochemical methods;the two-stage amplifier circuit was designed,and the current detection sensitivity was improved to 10-8 A;meanwhile,the automatic adjustment of the detection range of each channel was realized on the smartphone APP.Results:The experiments show that the multi-channel electrochemical device can accurately perform the electrochemical methods,and the coefficient of variation of the device is less than 1.9765%(n=3),which proves that the device has good repeatability and stability;the detection variation between channels is less than 0.745%(n=3),which proves that the device has high inter-channel consistency.The detection variation between the device and the electrochemical workstation was less than 1.671%(n=3),which proved the good reliability of the device.

关 键 词：电化学检测 多通道 量程自调节 智能手机 

分 类 号：R318.0[医药卫生—生物医学工程]