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Proton-transfer-reaction mass spectrometry … Proton-transfer-reaction mass spectrometry (PTR-MS) is an analytical chemistry technique that uses gas phase hydronium reagent ions which are produced in an ion source. PTR-MS is used for online monitoring of volatile organic compounds (VOCs) in ambient air and was developed in 1995 by scientists at the Institut für Ionenphysik at the Leopold-Franzens University in Innsbruck, Austria. A PTR-MS instrument consists of an ion source that is directly connected to a drift tube (in contrast to SIFT-MS no mass filter is interconnected) and an analyzing system (quadrupole mass analyzer or time-of-flight mass spectrometer). Commercially available PTR-MS instruments have a response time of about 100 ms and reach a detection limit in the single digit pptv or even ppqv region. Established fields of application are environmental research, food and flavor science, biological research, medicine, security, cleanroom monitoring, etc.cine, security, cleanroom monitoring, etc.
, 质子转移反应质谱法（英語：Proton-transfer-reaction mass … 质子转移反应质谱法（英語：Proton-transfer-reaction mass spectrometry，缩写：PTR-MS），是一种使用气相水合氢离子作为离子源试剂的分析化学方法。使用质子转移反应质谱法进行分析的仪器称为质子转移反应质谱仪。1995年，因斯布鲁克大学粒子物理研究所的科学家们发明了这一分析方法。目前，PTR-MS多用于环境空气中的挥发性有机物的实时监测。质子转移反应质谱仪通常由一个与漂移管直接连接的离子源以及分析系统共同组成（与选择粒子流动管质谱仪SIFT-MS不同，SIFT-MS并不与滤质器直接连通）。质子转移反应质谱仪通常使用四极杆质量选择器或飞行时间质谱仪作为分析系统。商用的PTR-MS通常反应时间为100毫秒，并且可以达到兆分之一的灵敏度。目前PTR-MS的主要应用领域包括环境研究，食品与风味科学，生物研究，医学研究等。。目前PTR-MS的主要应用领域包括环境研究，食品与风味科学，生物研究，医学研究等。
, Spektrometria mas z jonizacją poprzez prze … Spektrometria mas z jonizacją poprzez przeniesienie protonu (PTR-MS, z ang. Proton Transfer Reaction - Mass Spectrometry) – technika analityczna zaliczana do metod spektroskopowych, w których stosuje się pomiar stosunku masy do ładunku elektrycznego danego jonu (m/z). Jonem tym staje się cząsteczka oznaczanej substancji po przeniesieniu na nią protonu z jonu hydroniowego wytworzonego w źródle jonów. Technika spektrometrii mas z jonizacją poprzez przeniesienie protonu jest rozwiązaniem wykorzystywanym m.in. do oznaczania lotnych związków organicznych w fazie gazowej występujących na bardzo niskich poziomach stężeń rzędu ppt (liczba cząsteczek na bilion, 10−12). ppt (liczba cząsteczek na bilion, 10−12).
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Proton-transfer-reaction mass spectrometry … Proton-transfer-reaction mass spectrometry (PTR-MS) is an analytical chemistry technique that uses gas phase hydronium reagent ions which are produced in an ion source. PTR-MS is used for online monitoring of volatile organic compounds (VOCs) in ambient air and was developed in 1995 by scientists at the Institut für Ionenphysik at the Leopold-Franzens University in Innsbruck, Austria. A PTR-MS instrument consists of an ion source that is directly connected to a drift tube (in contrast to SIFT-MS no mass filter is interconnected) and an analyzing system (quadrupole mass analyzer or time-of-flight mass spectrometer). Commercially available PTR-MS instruments have a response time of about 100 ms and reach a detection limit in the single digit pptv or even ppqv region. Established fields of apeven ppqv region. Established fields of ap
, Spektrometria mas z jonizacją poprzez prze … Spektrometria mas z jonizacją poprzez przeniesienie protonu (PTR-MS, z ang. Proton Transfer Reaction - Mass Spectrometry) – technika analityczna zaliczana do metod spektroskopowych, w których stosuje się pomiar stosunku masy do ładunku elektrycznego danego jonu (m/z). Jonem tym staje się cząsteczka oznaczanej substancji po przeniesieniu na nią protonu z jonu hydroniowego wytworzonego w źródle jonów. hydroniowego wytworzonego w źródle jonów.
, 质子转移反应质谱法（英語：Proton-transfer-reaction mass … 质子转移反应质谱法（英語：Proton-transfer-reaction mass spectrometry，缩写：PTR-MS），是一种使用气相水合氢离子作为离子源试剂的分析化学方法。使用质子转移反应质谱法进行分析的仪器称为质子转移反应质谱仪。1995年，因斯布鲁克大学粒子物理研究所的科学家们发明了这一分析方法。目前，PTR-MS多用于环境空气中的挥发性有机物的实时监测。质子转移反应质谱仪通常由一个与漂移管直接连接的离子源以及分析系统共同组成（与选择粒子流动管质谱仪SIFT-MS不同，SIFT-MS并不与滤质器直接连通）。质子转移反应质谱仪通常使用四极杆质量选择器或飞行时间质谱仪作为分析系统。商用的PTR-MS通常反应时间为100毫秒，并且可以达到兆分之一的灵敏度。目前PTR-MS的主要应用领域包括环境研究，食品与风味科学，生物研究，医学研究等。。目前PTR-MS的主要应用领域包括环境研究，食品与风味科学，生物研究，医学研究等。
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| rdfs:label |
质子转移反应质谱法
, PTR-MS
, Proton-transfer-reaction mass spectrometry
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