摘要
利用顶空-气相色谱，质谱联用（Headspace—GasChromatography／MassSpectrometry，HS—GC／MS）技术研究水环境中的挥发性成分二甲胺和二乙胺的分析方法，用外标法进行定量．结果表明，在所选择的色谱操作条件下，ρ（二甲胺）和ρ（二乙胺）分别在1．80～35．90和1．42—28．40mg／L时线性良好，相关系数分别为0．9993和0．9968；ρ（二甲胺）和p（二乙胺）的最低检出限分别为0．09和0．12mg／L；水样平均加标回收率为85．92％～116．08％，相对标准偏差（RelativeStandardDeviation，RSD）为5．47％和2．00％．表明顶空-气相色谱，质谱法适合水中二甲胺和二乙胺的测定．
A method is explored for the determination of dimethylamine and diethylamine, two volatile components in environmental water samples, by headspace-gas chromatography/mass spectrometry （HS-GC/MS）. The contents of the samples are determined by external standard method. The results show that the linearity of dimethylamine and diethylamine is good over the concentration range of 1.80-35.90 mg/L to 1.42-28.40 mg/L,with correlation coefficients of 0. 9993 and 0. 9968 respectively. The lowest detection limits for dimethylamine and diethylamine were 0. 09 mg/L and 0. 12 mg/L respectively. The average recovery rate of spiked water samples was 85.92% -116. 08% ,and the RSD was 5.47% and 2. 00%. It indicated that HS-GC/MS is suitable for the detection of dimethylamine and diethylamine in water environment.
出处
《环境科学研究》
EI
CAS
CSCD
北大核心
2010年第1期112-115,共4页
Research of Environmental Sciences
基金
国家高技术研究发展计划(863)项目(SQ2008AA02Z4477672
2007AA06A404)
