SPE-GC/MS法测定水中苯胺类化合物条件优化的研究
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摘要
采用全自动固相萃取装置(SPE)代替传统的液液萃取前处理方式,通过不断优化固相萃取仪器条件,筛选各种类型的固相小柱,调节不同pH值的样品,增加有机改良剂等方式,使样品的加标回收率及重现性等得到了很大提高。使用气相色谱-质谱联用仪(GC/MS)代替气相色谱仪,使被测物质定性更加准确,也排除了一些杂质和仪器假阳性的干扰,为及时准确地分析检测地表水中的苯胺类物质提供了方法依据。
Automatic solid-phase extraction device(SPE) was used instead of traditional way of liquid-phase extraction pretreatment.Through continuous optimization of solid-phase extraction conditions of instrument,screening of various types of solid-phase column,adjusting the samples of different pH,increasing organic matter and so on,sample standard addition recovery and reproducibility was greatly improved.Using gas chromatography-mass(GC / MS) spectrometry instrument instead of gas chromatography,the measured material qualitative was more accurate,which can also eliminate some impurities and instrument false positive interference,and provided basis for the timely and accurate detection of anilines in water.
Automatic solid-phase extraction device(SPE) was used instead of traditional way of liquid-phase extraction pretreatment.Through continuous optimization of solid-phase extraction conditions of instrument,screening of various types of solid-phase column,adjusting the samples of different pH,increasing organic matter and so on,sample standard addition recovery and reproducibility was greatly improved.Using gas chromatography-mass(GC / MS) spectrometry instrument instead of gas chromatography,the measured material qualitative was more accurate,which can also eliminate some impurities and instrument false positive interference,and provided basis for the timely and accurate detection of anilines in water.
引文
[1]国家环境保护总局《水和废水监测分析方法》编委会.水和废水监测分析方法.4版[M].中国环境科学出版社,2002:549-551.
[2]陈昀,王方圆,洪华嫦,等.环境样品中苯胺类化合物检测方法的研究进展[J].广州化工,2012,40(1):12-15.
[3]邓延慧,夏明芳,王志良,等.气相色谱法测定废水中苯胺类化合物[J].环境监测管理与技术,2008,20(1):35-36.
[4]王洪明,江丕森,侯晓虹,等.气相色谱法测定污水中苯胺类化合物[J].石油化工,2012,41(3):342-346.
[5]赵永刚,沈燕,章勇,等.固相萃取/高效液相色谱法测定水中的苯胺类化合物[J].企业技术开发,2011,29(21):62-63.
[6]储燕萍,唐莺,韩英,等.气相色谱/质谱联用法测定饮用水源水中苯胺类化合物[J].环境监测管理与技术,2011,23(5):58-61.
[2]陈昀,王方圆,洪华嫦,等.环境样品中苯胺类化合物检测方法的研究进展[J].广州化工,2012,40(1):12-15.
[3]邓延慧,夏明芳,王志良,等.气相色谱法测定废水中苯胺类化合物[J].环境监测管理与技术,2008,20(1):35-36.
[4]王洪明,江丕森,侯晓虹,等.气相色谱法测定污水中苯胺类化合物[J].石油化工,2012,41(3):342-346.
[5]赵永刚,沈燕,章勇,等.固相萃取/高效液相色谱法测定水中的苯胺类化合物[J].企业技术开发,2011,29(21):62-63.
[6]储燕萍,唐莺,韩英,等.气相色谱/质谱联用法测定饮用水源水中苯胺类化合物[J].环境监测管理与技术,2011,23(5):58-61.