IR-Spectrometric Determination of 2,6-Di-tert.-butyl-p-cresol in Aviation Lubricating Oil and Hydraulic Press Oil
摘 要
用红外光谱法测定航空润滑油、航空液压油中抗氧剂2,6-二叔丁基对甲酚的含量.用光学衰减器作补偿,记录试样在3 760~3 550 cm-1区间的红外光谱,基线法计算试样中2,6-二叔丁基对甲酚的羟基伸缩振动吸收带在3 650 cm-1处的吸光度.以工作曲线定量.2,6-二叔丁基对甲酚的质量分数在0.05%~0.10%范围内服从比耳定律.其线性回归方程为A=0.003 03+0.560 81 C,相关系数为0.998 0.
Abstract
The anti-oxidant,2,6-di-tert.-butyl-p-cresol (DBpC),in aviation lubricating oil and hydraulic press oil was determined by IR spectrometry with compensation by optic attenuator.IR spectrum in the wave number range of 3 760-3 550 cm-1 was recorded.Absorbance due to the stretching vibration of OH group in the molecule of DBpC at the wave number of 3 650 cm-1 was calculated by the baseline method,and content of DBpC was found from the working curve.Range of linearity was found in the range of 0.05%-0.10% (w% of DBpC),corresponding to the linear regression equation A=0.003 03+0.560 81 C (r=0.998 0).
中图分类号 O657.3
所属栏目 工作简报
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收稿日期 2008/1/19
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备注刘婕(1969-),女,天津人,高级工程师,硕士,主要研究方向为润滑油的分析.
引用该论文: LIU Jie,SHEN Hong-bin,CAO Wen-jie,WANG Shu-lei. IR-Spectrometric Determination of 2,6-Di-tert.-butyl-p-cresol in Aviation Lubricating Oil and Hydraulic Press Oil[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2009, 45(1): 35~36
刘婕,沈虹滨,曹文杰,王树雷. 红外光谱法测定航空润滑油液压油中2,6-二叔丁基对甲酚含量[J]. 理化检验-化学分册, 2009, 45(1): 35~36
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参考文献
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【3】GJB 634-1988航空润滑油、液压油中2,6-二叔丁基对甲酚含量测定[S].
【2】王宗明,何欣翔,孙殿卿.实用红外光谱学[M].北京:石油化学工业出版社,1978.
【3】GJB 634-1988航空润滑油、液压油中2,6-二叔丁基对甲酚含量测定[S].
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