基于酶抑制法农药残留检测仪的校准方法研究

Research on calibration method of pesticide residue detector based on enzyme inhibition method

目的研究一种适用于胆碱酯酶试剂盒比色法原理的农药残留检测仪的校准方法。方法经过对农药残留检测仪的波长稳定性及示值误差,透射比示值误差及重复性、通道差异、灵敏度等性能指标的实验和研究,建立该特定原理的农药残留检测仪的校准方法。结果起草农药残留检测仪校准规范,提出了仪器的校准项目与技术指标,确定了校准用的仪器设备,设计了完备的校准方法,使农药残留检测仪的量值溯源准确、可靠。结论制订国家统一的计量校准规范,完善农药残留检测仪的量值溯源体系,为统一相关量值发挥重要的作用。

Objective To study a calibration method of pesticide residue detector suitable for the principle of cholinesterase kit colorimetric method. Methods Through the experiment and research on the wavelength stability and indication error of the pesticide residue detector, the transmission error, repeatability, channel difference, sensitivity and other performance indicators, the calibration method of the pesticide residue detector with this specific principle was established. Results The calibration specification of pesticide residue detector was drafted, the calibration items and technical indexes of the instrument were put forward, the instrument and equipment for calibration were determined, and the complete calibration method was designed, so that the traceability of pesticide residue detector was accurate and reliable. Conclusion The formulation of national uniform measurement and calibration standards, the improvement of the traceability system of pesticide residue detectors, play a due role in unifying the relevant quantities.