A triple quadrupole mass spectrometer (TQMS), is a tandem mass spectrometer consisting of two quadrupole mass analyzers in series, with a (non-mass-resolving) radio frequency (RF)–only quadrupole between them to act as a cell for collision-induced dissociation. This configuration is often abbreviated QqQ, here Q 1 q 2 Q 3.

2020年9月18日 · 液相色谱-三重四级杆质谱联用仪 LC-QQQ-MS (Agilent 6460)系统主要由1200液相色谱、AJS离子源、四级杆质量分析器、多通道板（MCP）检测器、MassHunter数据处理软件组成。

The Agilent 8900 triple quadrupole ICP-MS (ICP-QQQ) is the world’s most successful and widely used tandem ICP mass spectrometer. Available in a range of configurations to cover applications from routine contract analysis to advanced research and high-purity materials analysis, the Agilent 8900 ICP-QQQ redefines ICP-MS performance, delivering ...

2016年7月19日 · ICP-QQQ outperforms conventional quadrupole ICP-MS for established applications, and provides far superior control of interferences in reaction mode, due to the additional quadrupole (Q1) positioned before the CRC. This additional mass filter enables MS/MS operation, where both Q1 and Q2 are operated as unit mass filters;

2024年6月29日 · 时间飞行质谱（Time-of-Flight Mass Spectrometry, TOF-MS）和四级杆质谱（Triple Quadrupole Mass Spectrometry, QQQ-MS）是两种不同类型的质谱技术，它们在原理、性能和应用方面有着明显的区别：

A triple-quadrupole mass spectrometer, also known as QqQ, is a tandem MS method in which the first and third quadrupoles act as mass filters and the second causes fragmentation of the analyte through interaction with a collision gas—it is a radiofrequency-only quadrupole, and can be used in either SIM or scan mode.

2024年11月26日 · 本研究通过UPLC-Q-TOF-MS/MS技术对洋甘菊的化学成分进行鉴别，并分析不同化学成分的裂解规律，类别主要包括黄酮类、苯丙素类、有机酸类等化合物，多种类型的活性成分共同发挥作用，产生协同或互补效应，从而实现多成分、多作用的综合治疗效果。 此外，本研究未检测到洋甘菊中的某些已知成分，可能与ESI离子化效率或提取方法有关[ 13]。

2020年12月3日 · 三重四极杆质谱仪（TQMS或QqQ）是由两个四极杆质量分析器组成的串联质谱仪，它们之间有一个（非质量分辨）射频-只有四极杆，充当碰撞-诱导解离（CID）的碰撞池，裂解选定的前体/母离子，并产生碎片/子离子。 三重…

The 6495D triple quadrupole LC/MS system provides ultrahigh performance for labs analyzing large batches of samples in ‘omics, food, and environmental. Equipped with innovative iFunnel technology, this LC-QQQ achieves ppq-level detection limits for challenging analytes in …

开发了一种基于 uhplc-qqq-ms/ms 的多功能、灵敏且快速的方法，用于同时定性和定量香豆素、呋喃香豆素、类黄酮和酚酸。 色谱洗脱和多反应监测模式转换经过优化，可在 13 分钟的色谱运行中实现 47 种分析物（包括 13 组异构体）的良好分离和准确定量。