CAJ | 학술논문

研究了溶剂纯度对原油样品三维荧光光谱测试的影响,确定了溶剂使用前的纯化处理过程.在不引起样品荧光猝灭的浓度范围内,研究了原油浓度变化对特征峰位置、特征峰荧光强度F、特征峰荧光强度比值R等三维荧光图谱特征指标的影响.结果发现特征峰荧光强度F、特征峰荧光强度比值R受浓度影响较大,而相对峰强R_s受浓度影响较小,且其数值随原油种类不同而有明显变化.文章提出了以R_s值做为原油鉴别的新特征指标,并在5 mg·L~(-1)的浓度条件下对大批不同产地的原油进行了鉴别实验.结果表明,该指标稳定、可靠,可应用于原油的快速鉴别.如与其他特征指标相结合,则可对原油作出进一步的准确鉴别.
연구료용제순도대원유양품삼유형광광보측시적영향,학정료용제사용전적순화처리과정.재불인기양품형광졸멸적농도범위내,연구료원유농도변화대특정봉위치、특정봉형광강도F、특정봉형광강도비치R등삼유형광도보특정지표적영향.결과발현특정봉형광강도F、특정봉형광강도비치R수농도영향교대,이상대봉강R_s수농도영향교소,차기수치수원유충류불동이유명현변화.문장제출료이R_s치주위원유감별적신특정지표,병재5 mg·L~(-1)적농도조건하대대비불동산지적원유진행료감별실험.결과표명,해지표은정、가고,가응용우원유적쾌속감별.여여기타특정지표상결합,칙가대원유작출진일보적준학감별.
The present paper investigates the influence of solvent purity on the test of three-dimensional fluorescence spectra, de-termines the process of its pre-purification, and studies the influence of the concentrations on the three-dimensional fluorescence characteristic indexes such as the characteristic peaks position, fluorescence intensity (F), and ratio (R) of fluorescence intensity when the phenomena of fluorescence quenching won't appear. The result shows that the concentration affects the value F and value R largely but its effect on the relative peak intensity (Rs) is relatively small. Different crude oils has different value Rs. According to those characteristics, this paper presents that the value Rs can be used as a new characteristic index for identifica-tion of crude oil. This conclusion was con-centrations crude oils stably and at 5 mg·L~(-1). This method can be applied to identify most crude oils preliminary and further accurate analysis can be reliably from different areas with their con-carried out together with other index.