全自动红外测油仪的研制
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摘要
研制新型全自动红外测油仪。通过对进样系统、萃取系统、吸附过滤系统和检测系统自动化和集成化设计,实现了对水中油分的全自动检测。仪器的测量范围为0～200 mg/L。自动进样器取样体积误差在1%以内,仪器示值误差在样品浓度不大于10 mg/L时为0.1 mg/L,样品浓度大于10 mg/L时为0.9%,仪器重复性为0.2%(n=6),零点漂移为–0.1 mg/L,示值漂移为0.6%,最小检出浓度为0.1 mg/L,两种水样测量结果的相对标准偏差分别为1.28%和0.91%(n=11),加标回收率分别为96.8%和96.1%,检出限为0.006 mg/L。该仪器测量准确,性能稳定,能够降低工作强度,提高工作效率,减少有机物危害,为环境监测提供有效保障。
A new fully automatic infrared oil detector was developed. By the automatic and integrated design of the injection system, extraction system, adsorption filtration system and detection system, the automatic detection of oil in water was realized. The measuring range of the instrument was 0–200 mg/L. The autosampler volume error was less than 1%. The indication error of the instrument was 0.1 mg/L when the concentration of sample was less than or equal to 10 mg/L, and the indication error was 0.9% when the concentration of sample was more than to 10 mg/L. The instrument repeatability was 0.2%(n=6). The zero drift was –0.1 mg/L. The indicated value drift was 0.6%. The minimum detection concentration was 0.1 mg/L. The relative standard deviations of the measured water samples were 1.28% and 0.91%(n=11). The spiked recoveries were 96.8% and 96.1%. The detection limit was 0.006 mg/L. The instrument has accurate measurement and stable performance. It could reduce work intensity, improve working efficiency, reduce the harm of organic hazards, and provide effective guarantee for environmental monitoring.
A new fully automatic infrared oil detector was developed. By the automatic and integrated design of the injection system, extraction system, adsorption filtration system and detection system, the automatic detection of oil in water was realized. The measuring range of the instrument was 0–200 mg/L. The autosampler volume error was less than 1%. The indication error of the instrument was 0.1 mg/L when the concentration of sample was less than or equal to 10 mg/L, and the indication error was 0.9% when the concentration of sample was more than to 10 mg/L. The instrument repeatability was 0.2%(n=6). The zero drift was –0.1 mg/L. The indicated value drift was 0.6%. The minimum detection concentration was 0.1 mg/L. The relative standard deviations of the measured water samples were 1.28% and 0.91%(n=11). The spiked recoveries were 96.8% and 96.1%. The detection limit was 0.006 mg/L. The instrument has accurate measurement and stable performance. It could reduce work intensity, improve working efficiency, reduce the harm of organic hazards, and provide effective guarantee for environmental monitoring.
引文
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[3] HJ 637–2012水质石油类和动植物油的测定红外光度法[S].
[4]种波.红外分光测油仪光学系统设计及实现[D].湖北：华中理工大学，2014.
[5]张雪容，林燕春，叶欣，等.石油类和动植物油测定中萃取设备与脱水方法的改进[J].中国环境监测，2011,27(1):30–32.
[6]江泉观，纪云晶，常元勋.环境化学毒物防治手册[M].北京：化学工业出版社，2004.
[7]陆胜龙，倪圣亚，薛民琪，等.外挂式半自动进样器的研制[J].宁夏农林科技，2012,53(8):135.
[8]安捷伦科技公司推出新型气相色谱自动进样器[J].环境化学，2009(3):454.
[9]周泽义，周鑫，王德发.多路气体自动进样器的研制[J].分析测试学报，2010,29(5):530–532.
[10]张思祥，李新冉，赵业佳，等.水质化学需氧量检测的自动进样器的研制[J].电子器件，2018(1):245–249.
[11]陈莲，肖滢，陈世斌，等.气相色谱仪的两种液体样品自动进样器的兼容设计与研制[J].分析化学，2016(8):1 308–1 313.
[12]周志恒，赵雅云，荣庆丰.三维旋转式自动进样器的研制[J].岩矿测试，2004,23(4):291–294.
[13]孙娟，俞美香，朱蕾，等.搅拌萃取–红外分光光度法测定污水中石油类[J].环境监控与预警，2015(4):31–33.
[14]罗力力，罗瑞峰，李红敏.射流萃取、红外光谱分析法测定水中石油类[J].石河子大学学报(自科版)，2006,24(4):507–509.
[15]冯新长.超声波萃取–红外分光光度法测定土壤中石油类[J].环境监测管理与技术，2014(2):45–47.
[16] JJF 1348–2012水中油分浓度分析仪型式评价大纲[S].