ICS71.040.10 CCSN53 CITS 团体标准 T/CITS337—2025 基质辅助激光解吸电离-飞行时间质谱 成像性能测试方法 Testingmethodforimagingperformanceofmatrixassistedlaserdesorption ionizationtimeofflightmassspectrometry 2025-04-30发布 2025-04-30实施 中国检验检测学会发布 全国团体标准信息平台 T/CITS337—2025 I目  次 前言.................................................................................III 1范围................................................................................1 2规范性引用文件......................................................................1 3术语和定义..........................................................................1 4缩略语..............................................................................2 5测试环境............................................................................2 6仪器设备............................................................................2 6.1移液管............................................................................2 6.2光学显微镜........................................................................2 6.3电热板............................................................................2 6.4振荡混合器........................................................................2 6.5分析天平..........................................................................2 6.6涡旋仪............................................................................2 6.7瞬时离心机........................................................................2 7试剂或材料..........................................................................3 7.1标准物质..........................................................................3 8性能测试............................................................................3 8.1测试准备..........................................................................3 8.2空间分辨率........................................................................3 8.2.1调整激光直径和二维移动平台移动速率............................................3 8.2.2待测试空间分辨率..............................................................3 8.2.3信噪比测试....................................................................3 8.2.4空间分辨率确认................................................................4 8.3成像速率..........................................................................4 8.3.1调整激光直径和二维移动平台移动速率............................................4 8.3.2像素测试......................................................................4 8.3.3成像速率确定..................................................................4 8.4单像素灵敏度......................................................................4 8.4.1调整激光直径和二维移动平台移动速率............................................4 8.4.2信噪比测试....................................................................4 8.4.3单像素灵敏度确定..............................................................4 8.5成像质量范围（上限）..............................................................4 8.5.1调整激光直径和二维移动平台移动速率............................................4 8.5.2信噪比测试....................................................................5 8.5.3质量范围上限确定..............................................................5 8.6定量重复性........................................................................5 8.7其他性能测试方法..................................................................5 附录A（规范性）试剂耗材及样品制备.....................................................6 A.1试剂或耗材........................................................................6 A.2样品制备..........................................................................6 附录B（资料性）质谱仪成像性能测试实例.................................................8 全国团体标准信息平台 T/CITS337—2025 IIB.1空间分辨率测试....................................................................8 B.2成像速率测试......................................................................9 B.3单像素灵敏度测试.................................................................11 B.4成像质量范围（上限）.............................................................12 B.5定量重复性.......................................................................13 附录C（资料性）测试结果记录格式（示例）.......................................