鲁米诺-N-羟基邻苯二甲酰亚胺化学发光体系的建立及其对 Co 的灵敏检测
Development of lucigenin-N-hydroxyphthalimide chemiluminescence system and its application to sensitive detection of Co.
机构信息
College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China; State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China.
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China; University of Science and Technology of China, Hefei 230026, China.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2022 Oct 15;279:121459. doi: 10.1016/j.saa.2022.121459. Epub 2022 Jun 9.
N-hydroxyphthalimide (NHPI) is an efficient organic catalyst and an important chemical raw material which can be used as an intermediate in organic synthesis of drugs and pesticides. In this study, NHPI has been used as a coreactant of lucigenin chemiluminescence (CL) for the first time. The CL of the developed system is significantly enhanced in the presence of Co. Therefore, we developed a novel lucigenin-NHPI CL method coupled with flow injection analysis for the sensitive, precise, and selective determination of Co. The linear range of this method is 1-1000 nM, and the detection limit is 67 pM (S/N = 3). In addition, this method has a good selectivity for Co. It has been applied to the detection of Co in lake water, and the standard recovery rate is 95.9-103.2%, indicating that the method is feasible.
N-羟基邻苯二甲酰亚胺（NHPI）是一种高效的有机催化剂和重要的化学原料，可作为药物和农药有机合成的中间体。在这项研究中，NHPI 首次被用作虫荧光素化学发光（CL）的共反应物。在 Co 的存在下，开发的系统的 CL 显著增强。因此，我们开发了一种新的虫荧光素-NHPI CL 方法，结合流动注射分析，用于灵敏、准确和选择性地测定 Co。该方法的线性范围为 1-1000 nM，检测限为 67 pM（S/N = 3）。此外，该方法对 Co 具有良好的选择性。它已被应用于湖水 中 Co 的检测，标准回收率为 95.9-103.2%，表明该方法是可行的。
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