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基于酶傳感器的農(nóng)藥濃度便攜式實時測量裝置
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國家高技術研究發(fā)展計劃（863計劃）資助項目（2008AA100905,、2006AA10A305-3）;江蘇省屬高校自然科學重大基礎研究項目(10KJA470007)


Portable and Real-time Device for Measuring Concentration of Pesticides Used with Enzyme Sensing Electrode
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    摘要:

    設計了一種應用酶傳感器的便攜式農(nóng)藥濃度測量裝置,，由絲網(wǎng)印刷酶電極,、信號調(diào)理電路和單片機C8051F040組成,。酶傳感電極修飾方法使涂層電荷轉移電阻減小而加速電荷轉移,。裝置檢測出酶抑制率與農(nóng)藥（西維因）濃度的對數(shù)在農(nóng)藥（西維因）質量濃度為5ng/mL~2μg/mL時呈線性關系,，最低檢出限為1.7ng/mL,，檢出時間小于161s,，系統(tǒng)尺寸小,，可采用電池供電，為數(shù)量級μg/L的農(nóng)藥質量濃度現(xiàn)場檢測(如農(nóng)藥噴霧現(xiàn)場)提供了一種便攜式快速測量裝置,。

    Abstract:

    A kind of portable device for measuring concentration of pesticides used with enzyme sensor was designed. It included screen-printed enzyme electrode, signal conditioning circuit and MCU C8051F040. The preparation of enzyme electrode made the coated resistance of charge transfer reduced, charge transfer accelerated; and a reliable liner relationship between the inhibition of enzyme and log ［carbaryl］ was obtained from 5ng/mL to 2μg/mL, with the detection limitation of 1.7ng/mL. Response time of the device was less than 161s. The size of the device was small and the power was supported by battery. It provided a portable device for rapid measuring and spotty concentration of pesticide in μg/L level.

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陳志剛,張啟甲,邱白晶,王坤,吳春篤.基于酶傳感器的農(nóng)藥濃度便攜式實時測量裝置[J].農(nóng)業(yè)機械學報,2011,42(11):178-182. Chen Zhigang, Zhang Qijia, Qiu Baijing, Wang Kun, Wu Chundu. Portable and Real-time Device for Measuring Concentration of Pesticides Used with Enzyme Sensing Electrode[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(11):178-182.

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