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报道了实验室研制的电喷雾离子源 ,具有射频四极杆接口的高分辨飞行时间质谱 (ESI- QQQ- TOFMS)仪器。该仪器具有以下特点 :在离子调制区使用三组四极杆 ,有效地减少离子束的空间分散和能量分散 ;采用正负双脉冲推斥和离子垂直引入方式 ;经过优化设计的二级有网反射器 ;新颖的 MCP安装方法。经初步调试 ,该仪器的分辨本领已优于 1 0 ,0 0 0 ,质量测定精度优于 1 0× 1 0 - 6 。该仪器于 2 0 0 2年 6月通过了国家教育部科技成果鉴定 [鉴字 [教 2 0 0 2 ]第 0 0 8号 ],其主要性能指标已经达到了国际先进水平
A laboratory-developed electrospray ionization source, ESI-QQQ-TOFMS instrument with a radio frequency quadrupole interface was reported. The instrument has the following features: the use of three quadrupoles in the ion-modulated zone, effectively reducing the ion beam spatial dispersion and energy dispersion; using positive and negative double pulse repulsion and ion vertical introduction mode; Reflector; novel MCP installation method. After preliminary debugging, the resolution ability of the instrument has been better than 10, 0 0 0, the quality of measurement accuracy is better than 1 0 × 10 6. The instrument in June 2002 passed the Ministry of Education appraisal of scientific and technological achievements [Kam character [teach 2000] No. 0 0 8], the main performance indicators have reached the international advanced level