文献类型：期刊文献

英文题名：A new cataluminescence-based gas sensor for simultaneously discriminating benzene and ammonia

作者：Fan, Huizhen[1];Peng, Zhaokuai[1,2];Yang, Hongwei[1,2];Zhou, Kaowen[1,2]

第一作者：Fan, Huizhen

通讯作者：Zhou, KW[1];Zhou, KW[2]

机构：[1]Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China;[2]Beijing Key Lab Biomass Waste Resource Utilizat, Beijing 100023, Peoples R China

第一机构：北京联合大学生物化学工程学院

通讯机构：[1]corresponding author), Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China;[2]corresponding author), Beijing Key Lab Biomass Waste Resource Utilizat, Beijing 100023, Peoples R China.|[1141726]北京联合大学生物化学工程学院;[11417]北京联合大学;

年份：2016

卷号：8

期号：6

起止页码：1257-1264

外文期刊名：ANALYTICAL METHODS

收录：;EI(收录号：20160701924013);Scopus(收录号：2-s2.0-84957677899);WOS:【SCI-EXPANDED(收录号:WOS:000370332700007)】；

基金：This work was supported by Beijing Natural Science Foundation (Grant No. 2152013), Key Projects of Science and Technology Plan from Beijing Municipal Education Commission of China (KZ201311417038), State 863 Projects (2014AA022002), National International Cooperation Projects (2014DFA61040) and Research Base Projects (Z141109004414002).

语种：英文

外文关键词：Ammonia - Carbon dioxide - Nanosensors - Sulfur determination - Sulfur dioxide

摘要：An efficient method based on cross-cataluminescence (CTL) on nano-Bi4SnV2O13 was proposed for simultaneously discriminating benzene and ammonia in air. The experimental conditions meeting the algebraic sum rule of the CTL intensities of benzene and ammonia were sought. They are two analysis wavelengths of 475 nm and 550 nm, the surface temperature of sensing materials of 150 degrees C and the flow rate of air carrier of 250 ml min(-1). The limits of detection of this method were 0.12 mg m(-3) for benzene and 0.21 mg m(-3) for ammonia. The linear ranges of CTL intensity versus analyte concentration were 0.2-66.3 mg m(-3) for benzene and 0.4-81.7 mg m(-3) for ammonia. The recoveries of 10 tested standard samples by this method were 97.1%-102.2% for benzene and 97.6%-103.1% for ammonia. Common coexistence matters, such as toluene, ethylbenzene, methylamine, ethylamine, formaldehyde, acetaldehyde, methanol, ethanol, sulfur dioxide and carbon dioxide, did not disturb the determination. The relative deviation (RD) of CTL intensities was less than 2% for continuous 120 h detection for a gaseous mixture containing benzene and ammonia, which demonstrated the longevity and steady performance of nano-Bi4SnV2O13 in the presence of benzene and ammonia.