A Determination Method for Formaldehyde Based on Micro-fluidic Chip

被引:0
作者
Xu, Yuanyuan [1 ]
Zhang, Xiao [1 ]
Lin, Zhen [1 ]
机构
[1] Zhejiang Inst Metrol, Hangzhou 310013, Zhejiang, Peoples R China
来源
ENVIRONMENTAL ENGINEERING, PTS 1-4 | 2014年 / 864-867卷
关键词
Determination Method; Formaldehyde; Micro-fluidic Chip; CHROMATOGRAPHY; AIR;
D O I
10.4028/www.scientific.net/AMR.864-867.945
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A determination method for formaldehyde based on micro-fluidic chip was developed in this study. Formaldehyde samples with 3-methyl-2-benzothiazolinone hydrazone hydrochloride (MBTH) and ammonium ferric sulfate were well mixed and reacted in a micro-fluidic chip, and signals in effluent were determined online. The correlation coefficient of calibration line was greater than 0.999, which indicated that signals of this device were highly positively correlated with formaldehyde concentration. The relative standard deviations (RSD) of same sample were less than 2% at different formaldehyde concentration levels, indicating perfect reproducibility of this method. Noteworthy, this method was affected significantly by temperature since the online signal was depended on the extent of reaction.
引用
收藏
页码:945 / 948
页数:4
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