CAJ | 학술논문

为定量、快速检测在用油的燃油污染程度，通过定量加入法配制一定燃油浓度梯度的润滑油样品，建立燃油浓度和804～759 cm-1谱区峰面积的标准曲线，线性相关性达0.9877，此曲线可用于在用润滑油燃油污染的定量分析。对配制的样品和在用油样品的红外光谱进行 Savitzky-Golay多项式法平滑和一阶导数处理，采用偏最小二乘法（PLS）建立润滑油中燃油污染的红外光谱定量分析模型。模型校正偏差为0.144，相关系数达到0.986，预测集的标准偏差为0.161，具有很好的精密度和准确性，可用于在用油燃油稀释污染的快速定量检测分析。
위정량、쾌속검측재용유적연유오염정도，통과정량가입법배제일정연유농도제도적윤활유양품，건립연유농도화804～759 cm-1보구봉면적적표준곡선，선성상관성체0.9877，차곡선가용우재용윤활유연유오염적정량분석。대배제적양품화재용유양품적홍외광보진행 Savitzky-Golay다항식법평활화일계도수처리，채용편최소이승법（PLS）건립윤활유중연유오염적홍외광보정량분석모형。모형교정편차위0.144，상관계수체도0.986，예측집적표준편차위0.161，구유흔호적정밀도화준학성，가용우재용유연유희석오염적쾌속정량검측분석。
To monitor the fuel content in the use d oil quantitatively and rapidly,a serial of lubricating oil samples with different fuel content were made up through gravimetric method,and a standard curve of fuel content with correlation coefficient of 0.987 7 was estab-lished based on the FTIR peak area of 804~759 cm-1 ,which can be used for the quantitative analysis of the fuel content of used lubrica-ting oil. In order to achieve the rapid monitor of fuel content,a calibration model was built with partial least square method (PLS)after pretreating the Fourier transformation infrared spectrometry of prepared oil samples and used ones by Savitzky-Golay smoothing and the first derivative. The standard error of calibration model is0.144,the correlation coefficient is 0.986,and the standard error of prediction set is 0.161,indicating that the model has high precision and accuracy can be used to monitor the fuel contaminant of oil rapidly.