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为测量润滑油基础油中芳烃含量的多少，表征油品的精制深度和质量，研制了在线紫外分析仪。该仪表测量范围（吸光度）为０～７；量程（吸光度）为０～１；精制油吸光系数为０～３．０，原料油吸光系数为２．０～１０；分析结果与以ＳＹ２８６８－８３标准做出的吸光系数极差Δａ（准确性）≤０．２５；重复性Δａ≤０．１５；三年运行中无故障运行率达到９７％。兰州炼油化工总厂酚精炼车间根据该仪表指示值进行质量卡边操作，使成品油收率提高１．５个百分点，油品合格率提高２个百分点，一套１８０ｋｔ／ａ装置年创效益为３００万元以上。该仪表已获国家发明专利和实用新型专利
In order to measure the amount of aromatics in the lubricating base oil, an in-line UV analyzer was developed to characterize the refined depth and quality of the oil product. The measurement range (absorbance) of the instrument is 0-7; the range (absorbance) is 0-1; the absorption coefficient of the refined oil is 0-3.0; the absorption coefficient of the raw material oil is 2.0-10; Standard Absorption coefficient made very poor Δa (accuracy) ≤ 0.25; Repeatability Δa ≤ 0.15; three-year operation without fault operation rate of 97%. Lanzhou Refining and Chemical Plant phenol refining plant according to the instrumentation value card quality edge operation, the finished oil yield increased by 1.5 percentage points, the oil pass rate increased by 2 percentage points, a set of 180kt / a device annual benefit 300 million or more. The instrument has won the national invention patents and utility model patents