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硒是人体必需的微量元素,与人类疾病、健康有着密切关系。目前分析测定痕量元素硒含量的方法均在实验室采用大型生化分析仪进行,存在操作繁琐、试剂有害、干扰严重等缺点。引入体积小、样品消耗少、分析速度快的微流控芯片和灵敏度高、准确度好、适用范围广的原子荧光法测定硒。设计一个将两项技术结合的分析系统,着重研究系统的各个部件包括原子荧光检测光学和电路系统、微流控芯片、气路系统、液路系统和控制系统等,然后用于检测恩施生物材料硒含量。
Selenium is an essential trace element of the human body and is closely related to human diseases and health. At present, the methods for the determination of trace elemental selenium content are all carried out in the laboratory by means of large-scale biochemical analyzers, which have the disadvantages of complicated operation, harmful reagents and serious interference. The introduction of small size, less sample consumption, high speed microfluidic chip and high sensitivity, good accuracy, wide range of applications of atomic fluorescence spectrophotometric determination of selenium. To design an analytical system that combines the two technologies, focusing on various components of the system including atomic fluorescence detection optics and circuitry, microfluidic chips, gas systems, fluidics and control systems, and then for the detection of Enshi Biomaterials Selenium content.