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大连物化所承担的科技部“九五”专题“毛细管固相微萃取器的研制与开发”,不久前通过验收。该仪器的研制成功,表明我国在水样品预处理和在线富集与色谱联用分析方面进入世界先进行列,是水质检测应用中关键技术的突破。 毛细管固相微萃取器采用毛细管柱内微萃取和热脱附方法相结合,实现了样品预处理—吸附—进样并与高分辨率气相色谱在线联用,解决了地表水、饮用水中痕量有机污染物的浓缩富集和样品预处理,富集倍数为103～104,用最普通的火焰离子化检测器检测,芳烃的最小检测限达2×10~(-10)(体积分数),满足水质分析的国际要求。该仪器操作简单,
Ministry of Science and Technology undertook the “Ninth Five-Year Plan” project entitled “Development and Development of Capillary Solid Phase Microextractor” undertaken by Dalian Institute of Chemical Technology recently passed the inspection. The successful development of this instrument shows that our country has entered the world advanced ranks in water sample pretreatment and on-line enrichment and chromatographic analysis, which is a breakthrough of key technologies in the application of water quality testing. Capillary solid-phase microextractor with capillary column by microextraction and thermal desorption method combined to achieve the sample pretreatment - adsorption - injection and high-resolution gas chromatography online, solve the surface water, drinking water marks Enrichment of organic pollutants and sample pretreatment, the enrichment factor of 103 ~ 104, with the most common flame ionization detector detection, the detection limit of aromatics reached 2 × 10 ~ (-10) (volume fraction) , To meet the international requirements of water quality analysis. The instrument is simple,