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    • 4. 发明授权
    • Method for monitoring agents in hydrocarbon fluids
    • 用于监测烃类流体中的试剂的方法
    • US06217745B1
    • 2001-04-17
    • US09379628
    • 1999-08-24
    • Jiafu Fang
    • Jiafu Fang
    • G01N2726
    • G01N33/2835
    • A method and apparatus uses a flow injection technique for rapidly and accurately determining the level of one or more additives such as antioxidants and/or antiwear agents in a hydrocarbon fluid such as an engine oil. The hydrocarbon fluid is injected into a mobile phase using a microemulsion or organic solvent as the mobile phase and pumped through an electrochemical detection sensor. The electrochemical detention sensor accurately and quickly provides a sharp signal identifying the electroactive species in the hydrocarbon fluid.
    • 一种方法和装置使用流动注射技术来快速且准确地确定诸如发动机油之类的烃流体中的一种或多种添加剂如抗氧化剂和/或抗磨剂的水平。 使用微乳液或有机溶剂作为流动相将碳氢化合物流体注入流动相中并泵送通过电化学检测传感器。 电化学滞留传感器准确而快速地提供了识别烃流体中电活性物质的尖锐信号。