具有内置直线校准的紧型光光谱仪:用于检测水中溶解的有机物质的应用
Weicheng Cai1, Hui Huang1, Zhaolin Li1
1School of Artificial Intelligence, Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China.
Analytical chemistry
|September 12, 2023
概括
一个新的紧型光光谱仪 (FS) 使用直线光谱校准表 (ISCS) 提高精度. 这种新型设备提供了增强的检测极限,并简化了用于组件分析的光谱校准.
科学领域:
- 分析化学 分析化学
- 频谱学是一种光谱学.
- 材料科学 材料科学 材料科学
背景情况:
- 光光谱仪 (FS) 对于组件分析至关重要,因为它具有独特的材料光谱.
- 传统的光谱校准方法复杂,需要庞大的设备.
- 需要更紧,更准确的FS系统.
研究的目的:
- 开发一个紧的光光谱仪,简化,在线光谱校准.
- 为了提高基于光的检测的精度和灵敏度.
- 为了能够有效地补偿光谱干扰和仪器漂移.
主要方法:
- 将窄带通波器和线性变量波器 (LVF) 集成到线性光谱校准表 (ISCS) 中.
- 使用UV-LED激发,金属毛细血管 (MC) 和ISCS,制造一个紧的FS装置 (ISCS-FS).
- 应用传输激发功率 (TEP) 校准,同时补偿主内镜效应 (PIFE) 和UV-LED功率漂移.
主要成果:
- ISCS-FS显示,信号度的线性相关系数从0.89到0.998.99显著改善.
- 复制检测的相对标准偏差 (RSD) 从3%降至0.7%.
- 达到1.3μg/L的度检测极限 (DLC),比商业FS提高15倍,与TOC分析仪相比.
结论:
- 开发的ISCS-FS为基于光的分析提供了一个紧,准确和敏感的平台.
- 在线光谱校准有效地弥补了PIFE和仪器漂移,提高了可靠性.
- 在特定的应用中,ISCS-FS提供了一个具有成本效益和便携性的替代大容量商业仪器.
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