CAJ | 학술논문

采用静态顶空-毛细管气相色谱法对地表水中的甲醛和苯系物各组分同时测定，并对分析条件进行优化，详细讨论了各因素对测定结果的影响。结果发现，本方法能将甲醛与苯系物各组分分离，并可以使难分离同分异构体二甲苯分开，且不影响其他组分。本实验条件下，各组分校准曲线方程相关系数均大于0.995，加标回收率在90%～110%之间，相对标准偏差均低于5%。该方法简便、快速、准确，能同时适用于地表水水中甲醛和苯系物的测定。
채용정태정공-모세관기상색보법대지표수중적갑철화분계물각조분동시측정，병대분석조건진행우화，상세토론료각인소대측정결과적영향。결과발현，본방법능장갑철여분계물각조분분리，병가이사난분리동분이구체이갑분분개，차불영향기타조분。본실험조건하，각조분교준곡선방정상관계수균대우0.995，가표회수솔재90%～110%지간，상대표준편차균저우5%。해방법간편、쾌속、준학，능동시괄용우지표수수중갑철화분계물적측정。
A method for the simultaneous determination of methanal and BTEX with static headspace gas chromatogra phy was developed.To characterize the influence of various factors on results, some parameters were studiedin detail. The results showed that the methanal and BTEX could be separated from each other and dimethylbenzene isomer could also be separated without affecting other components.Under our experimental conditions,the coefficients of linear equation for each component were higher than 0.995.The recoveries were 90%~110%and the relative standard deviations were lower than 5%.The method was simple,quick,and accurate. It was suit to determine the methanal and BTEX in surface water.