文献类型：期刊文献

英文题名：Simultaneous determination of formaldehyde and hydrogen sulfide in air using the cataluminescence of nanosized Zn3SnLa2O8

作者：Zhou, Kaowen[1,2]; Fan, Huizhen[1]; Gu, Chunxiu[1,2]; Liu, Baining[1,2]

第一作者：周考文;Zhou, Kaowen

机构：[1] Biochemical Engineering College, Beijing Union University, Beijing, 100023, China; [2] Beijing Key Laboratory of Biomass Waste Resource Utilization, Beijing, 100023, China

第一机构：北京联合大学生物化学工程学院

通讯机构：[2]Beijing Key Laboratory of Biomass Waste Resource Utilization, Beijing, 100023, China

年份：2016

卷号：183

期号：3

起止页码：1063-1068

外文期刊名：Microchimica Acta

收录：EI(收录号：20242616456094);Scopus(收录号：2-s2.0-84959560823)

语种：英文

外文关键词：Carbon dioxide - Formaldehyde - Hydrogen sulfide - Nitric oxide - Nitrogen oxides - Sulfur determination - Sulfur dioxide - Tin compounds - Zinc compounds

摘要：The authors describe a cataluminescence (CTL) based method for simultaneous determination of formaldehyde (HCHO) and hydrogen sulfide (H2S) in air. CTL is emitted from the surface of nano-sized Zn3SnLa2O8 contained in a CTL reactor that is operated at a typical temperature of 275?°C. CTL shows emission peaks at 525 and 650?nm, respectively, the first mainly caused by H2S, the second mainly caused by HCHO. The limits of detection are 0.07?mg?m?3 for HCHO and 0.22?mg?m?3 for H2S. CTL intensity is linearly related to the concentration of HCHO in the range from 0.2 to 61.7?mg?m?3, and from 0.4 to 68.5?mg?m?3 for H2S. Ten standard samples were tested by this method, and recoveries ranged between 98.1 and 102.6?% for HCHO, and from 97.7 to 103.8?% for H2S. Commonly encountered potential interferents, including vapors of acetaldehyde, ethanol, benzene, toluene, ethylbenzene, ammonia, sulfur dioxide, carbon dioxide, nitric oxide and nitrogen dioxide, do not disturb in this method. The relative deviation (RD) of CTL signals during 180?h of continuous detection of a mixture containing both HCHO and H2S was less than 3?%, which demonstrated the longevity and stable performance of this monitor. [Figure not available: see fulltext.] ? 2015, Springer-Verlag Wien.