Development of portable-type surface plasmon resonance sensor for agriculture chemicals

我们试图研制一种便携式的表面等离子体共振传感器用于农用化学品。研制了一种具有5个检测点的便携式表面等离子体共振（SPR）传感器，该传感器由单个光源和单个线阵CCD元件组成，可用于现场分析内分泌干扰物等。传感器尺寸为220mm (W) × 130mm (D) × 105mm (H)，重量为1kg。目前SPR传感器的传感器信号基于传感器芯片的反射光强度，传感器芯片上有五个样品单元。用不同浓度的蔗糖溶液考察了SPR传感器的性能。该传感器的检测限与传统SPR传感器基于共振角位移检测的检测限基本相似。研制的便携式SPR传感器能够检测2,4-二氯酚、五氯酚和吡虫啉等农药。

We attempted to a develop portable-type surface plasmon resonance sensor for agriculture chemicals. The portable-type surface plasmon resonance (SPR) sensor with five detection points, which consisted of a single light source and a single linear CCD element, was developed for use in field analysis, such as endocrine disrupting chemicals. The size and weight of the sensor were 220 mm (W) x 130 mm (D) x 105 mm (H) and 1 kg, respectively. The sensor signal of the present SPR sensor is based on the intensity of reflected light from the sensor chip, on which five sample cells are located. The performance of the present SPR sensor was investigated by using sucrose solutions at several concentrations. The detection limit of the present sensor was almost similar to that obtained by a conventional SPR sensor based on detection of resonant angle shift. The developed portable-type SPR sensor was able to detect agriculture chemicals such as 2,4-dichlorophenol, pentachlorophenol and imidacloprid.