摘要
原油样品中主要成分的快速检测及产地溯源对国防安全及生态环境等领域意义重大。现阶段的原油成分检测操作复杂、成本高且检测时间较长,无法满足对原油成分的快速检测及原油产地快速溯源的需求。文中结合高灵敏太赫兹检测芯片(基于双磁矩环偶极子)和时域太赫兹波谱系统,测试了不同产地原油样品的太赫兹光谱,发现芯片谐振峰频移呈现不同的规律。且对于原油中两个最主要的指标硫含量和残碳量,可分别根据它们的频移规律进行定量分析。实验数据计算表明:相同产地的原油的谐振频率平均值相对差值平均为4.63%,不同产地的原油的谐振频率平均值的相对差值平均为56.53%,可明显区分出原油的产地。设计的超表面芯片激发了电磁新模式,提供了一种高灵敏度的检测技术,可广泛应用于生物分子实时监测或探测化学物质(如原油)成分检测、产地溯源等领域。
The detection of the main components in crude oil samples and the origin traceability is of great significance to the fields of national defense security and ecological environment. At this stage, the measurement of crude oil composition are complicated, high-cost, and have long detection time, which cannot meet the demands of rapid detection of crude oil composition and traceability of the origin of crude oil. Combining with a highly sensitive terahertz detection chip(Based on dual torus toroidal effect) and terahertz time-domain spectroscopy system, the terahertz spectra of crude oil samples from different origins were measured in this paper,and it was found that the frequency shift of the chip resonant peak showed different rules. For two main indicators of sulfur content and residual carbon in crude oil, quantitative analysis can be carried out according to their unique frequency shifts. The calculation of experimental data shows that the relative difference of the average resonance frequency of crude oil from the same origin is about 4.63%, and the relative difference of the average resonance frequency of crude oil from different production areas is about 56.53%, which can clearly distinguish the origin of crude oil. The designed metasurface chip can excite new electromagnetic mode, providing a highly sensitive detection technology, which can be widely used in real-time monitoring of biomolecules or detection of chemical substances(such as crude oil) composition detection, origin traceability and other fields.
作者
吴毅萍
陈晟皓
刘仕龙
古诗怡
徐金金
姜去寒
庄松林
陈麟
Wu Yiping;Chen Shenghao;Liu Shilong;Gu Shiyi;Xu Jinjin;Jiang Quhan;Zhuang Songlin;Chen Lin(School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;The Sino-British College,University of Shanghai for Science and Technology,Shanghai 200031,China)
出处
《红外与激光工程》
EI
CSCD
北大核心
2022年第6期288-295,共8页
Infrared and Laser Engineering
基金
国家自然科学基金(61671302)
上海市教委曙光计划(18SG44)。
关键词
双磁矩环偶极子
原油
太赫兹
超表面
高灵敏度
dual torus toroidal
crude oil
terahertz
metasurface
high sensitivity
