催化化学发光分析系统研究进展

The Progress on Cataluminescence-Based Analytical System

催化化学发光是分子通过催化剂表面时被氧气氧化过程中产生的一种光辐射现象。在过去的三十几年里,催化化学发光技术发展迅速,特别是在传感器方面快速发展,成为一项新型分析检测技术,在公众安全、排放检测、环境保护等方面发挥了巨大的作用。基于催化发光技术设计的传感器具有检测限低、灵敏度高、快速、仪器简单易操作、易实现小型化,便携等优点,在无机小分子气体及易挥发有机物的分析检测中展现了其独特的优势。应用于催化发光的催化材料发展至今已达上千种,囊括了金属、金属氧化物,非金属氧化物、硫化物、硒化物、金属盐类、有机物、陶瓷玻璃类等各类材料;复合材料的应用丰富了催化材料的种类;纳米新材料的引入为其发展提供了新的契机;材料的形貌等也得以深入研究。催化发光新技术也不断发展,催化发光与其他技术(雾化、分离富集、等离子体等)联用的发展,静态催化发光技术、多级催化发光技术、循环催化发光技术等的开发应用进一步提高了催化法光分析系统的灵敏度与选择性,拓展了催化发光的应用范围。本文综述了近年来催化发光的催化材料、联用技术及其他新技术的发展,并对其发展趋势进行了展望。

Cataluminescence（CTL）is a phenomenon of light radiation generated when analyte moleculars were oxidized by cata-lyst.In the past few decades,CTL has developed rapidly and become a promising detection technique,especially in gas sensing, and has attracted much attention of researchers for its potential versatile applications in emission control,public safety,and en-viro nmental protection.The analytical system based on CTL has low detection limit,high sensitivity and simple instrument which easy to operate,which shows huge advantages in the detection of inorganic gases and volatile organic compounds.The li-brary of sensing materials has been greatly enriched to thousands kinds,which contains metals,metal/non-metal oxides,sulfide, metal salts,organic compounds,ceramic,glass and other types of materials;Composite materials have been developed;The de-creasing of material dimensions to nanoscale provided new opportunities for its development;The morphology of material has al-so been explored.Some novel hyphenated techniques based on CTL coupled to other techniques including preconcentration/se-pration,nebulization,plasma have been developed,as well as some new CTL technique including static CTL,cyclic CTL and ect.Thanks to development of sensing material and the appearance of these novel techniques,the selectivity and sensitivity of CTL system has been improved,and the range of CTL application has been extended.In this article,the progress made in the field of cataluminescence,especially in latest developments of analytical applications were reviewed.The catalysts used in CTL, the recent novel CTL techniques were sumerized.The future of the cataluminescence was also forecasted.