常州大学学报（自然科学版）2011，Vol.23Issue(1)：67-70,4.
一种测定痕量甲醛的催化光度分析方法
Catalytic Sepctrophotometric Method for Determination of Trace Formaldehyde
郭伟 1陈玉婷 1孙贤祥 1许冬莹1
作者信息
- 1. 常州大学,石油化工学院,江苏,常州,213164
- 折叠
摘要
Abstract
A simple, catalytic spectrophotometric method for the determination of formaldehyde was proposed, based on the catalytic effect of formaldehyde on oxidation of chlorpromazine hydrochloride-bromate in the presence of phosphoric acid and under optimized experimental conditions. The linear concentration range of formaldehyde determined was 12.0-132.0mg · L-1 and the linear equation about the absorbance difference (△A) versus the concentration (ρ) was ΔA=0. 026 57+0. 002 25ρ (r=0. 993 3). The limit of detection was 0. 19mg · L-1 of formaldehyde. The recoveries and the relative standard deviation (RSD) were 99.4％- 100. 5％, 1.2％- 1.5％, respectively. This method has been successfully used in analysis of the sample solutions containing acetic acid and iodic ion.关键词
甲醛/催化光度法/盐酸氯丙嗪/溴酸钾/碘离子Key words
formaldehyde/ kinetic spectrophotometric method/ Chlorpromazine Hydrochloride/ potassium bromate/ iodic ion分类
化学化工引用本文复制引用
郭伟,陈玉婷,孙贤祥,许冬莹..一种测定痕量甲醛的催化光度分析方法[J].常州大学学报（自然科学版）,2011,23(1):67-70,4.
