摘要
采用亚甲蓝分光光度法、气相分子吸收光谱法和流动注射亚甲蓝分光光度法测定水质中的硫化物含量,研究了不同分析方法的检出限、精密度、准确度和加标回收率,并对实际水样的测定结果进行t检验和不确定度评定.结果表明,气相分子吸收光谱和流动注射亚甲蓝分光光度法,分析结果差异无统计学意义.气相分子吸收光谱和流动注射亚甲蓝分光光度法与亚甲蓝分光光度法相比,具有仪器自动化程度高、操作便捷、分析速度快等优势,可用于大批量分析测定环境水样中硫化物含量.
In this paper, we determined the content of sulfide in water quality by methylene blue spectrophotometry, gas phase molecular absorption spectrometry and flow injection-methylene blue spectrophotometry. The detection limit, precision, accuracy and recovery of three methods were studied. The determination results of actual water samples were evaluated with T-test and uncertainty. The results showed that there was no significant difference in the results of gas phase molecular absorption spectrum and flow injection methylene blue spectrophotometry. Compared with methylene blue spectrophotometry, gas phase molecular absorption spectrometry and flow injection methylene blue spectrophotometry have the advantages of high automation, convenient operation and fast analysis speed, which can be used for the determination of sulfide content in environmental water with large quantities of samples.
作者
邓茂
张永江
黄晓容
王明胜
肖艳平
姚靖
刘蓉
王文芳
DENG Mao;ZHANG Yongjiang;HUANG Xiongrong;WANG Mingsheng;XIAO Yanping;YAO Jing;LIU Rong;WANG Wenfang(Department of Enviroment and Quality Test,Chongqing Chemical Industry Vocational College,Changshou Chongqing 401220,China;Ecological Environmental Monitoring Station of Qianjiang District in Chongqing,Qianjiang Chongqing 409003,China;Ecological Environmental Monitoring Center of Chongqing,Chongqing 401147,China;Ecological Environmental Monitoring Station of Jiangjin District in Chongqing,Jiangjin Chongqing 402260,China)
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2022年第3期204-210,共7页
Journal of Southwest University(Natural Science Edition)
基金
重庆市科研机构绩效激励引导专项(cstc2018jxjl-yftrX004)。
关键词
亚甲蓝分光光度法
气相分子吸收光谱法
流动注射亚甲蓝分光光度法
不确定度
methylene blue spectrophotometry
gas phase molecular absorption spectrometry
flow injection analysis-methylene blue spectrophotometry
uncertainty
