正模式和负模式下,设备上加的电场的方向是相反的,正模式下收集带正电的离子,负模式下收集带负电的离子。两个模式分别适用于不同的样品;也分别需要不同的定容试剂和流动相(正模式用酸性的,负模式用碱性的),以促进待测物的电离。
[MS-ESI2]: Microsoft Edge / Internet Explorer ECMA-402 ECMAScript Internationalization API (2nd Edition) Specification Standards Support Document 1 Introduction 2 Standards Support Statements 2 Standards Support Statements 2.1 Normative Variations
[MS-ESI2]: Microsoft Edge / Internet Explorer ECMA-402 ECMAScript Internationalization API (2nd Edition) Specification Standards Support Document [MS-ESI2]: Microsoft Edge / Internet Explorer ECMA-402 ECMAScript Internationalization API (2nd Edition) Specification Standards Support Document 1 Introduction...
[MS-ESI2]: Microsoft Edge / Internet Explorer ECMA-402 ECMAScript Internationalization API (2nd Edition) Specification Standards Support Document [MS-ESI2]: Microsoft Edge / Internet Explorer ECMA-402 ECMAScript Internationalization API (2nd Edition) Specification Standards Support Document 1 Introduction...
[MS-ESI2]: Microsoft Edge / Internet Explorer ECMA-402 ECMAScript Internationalization API (2nd Edition) Specification Standards Support Document [MS-ESI2]: Microsoft Edge / Internet Explorer ECMA-402 ECMAScript Internationalization API (2nd Edition) Specification Standards Support Document 1 Introduction...
方法:利用固相萃取技术(SPE)、电喷雾多级串联质谱技术(ESI-MS~n)对山梗菜中生物碱类化合物进行定性分析。结果:初步确定了山梗菜中的2个生物碱结构分别是异山梗菜酮碱和8,10-二乙基山梗二酮,并根据其在正离子条件下表现出的特征质谱行为,提出了山梗菜中生物碱类化合物可能的电喷雾质谱碎裂规律。...
建立UPLC-ESI-MS/MS法测定八子补肾胶囊中14种成分的含量.Waters ACQUITY BEH C18柱(50mm×2.1 mm,1.7μm),柱温为40℃;流动相为A(乙腈)-B(0.1%乙酸),梯度洗脱;电喷雾离子源(ESI源),源温度为150℃,毛细管电压为2.0 k V,离子源补偿电压为50 V,脱溶剂气温度为500℃,脱溶剂气流...
ieesi-ms是什..是一种营销方法,旨在制定组织机构的整体目标以及确定其开展活动和取得成果的人员的组织过程,以满足多边需求的愿望这涉及到将总体目标和为达到这些目标而必须实施的特定行动方案之间的关系进行协调
[MS-ESI2]: Microsoft Edge / Internet Explorer ECMA-402 ECMAScript Internationalization API (2nd Edition) Specification Standards Support Document 1 Introduction 1 Introduction 1.1 Glossary 1.2 References 1.2 References 1.2.1 Normative References
[MS-ESI2]: Microsoft Edge / Internet Explorer ECMA-402 ECMAScript Internationalization API (2nd Edition) Specification Standards Support Document [MS-ESI2]: Microsoft Edge / Internet Explorer ECMA-402 ECMAScript Internationalization API (2nd Edition) Specification Standards Support Document 1 Introduction...