massn. 1.[C][~ (of sth)]团,块,堆;大量,大批,众多 2. 群众的,人数极多的 3.[U](物体的)质量(即其惯性的大小) 4.[pl]劳动者阶层(尤指政治领导人或思想家所 in flighta. 在飞行中的 timen. 1.时间;(Time)时间老人 2.(一段)时间 3.时刻;时令 4.规定时间;合适时候 5.时机;机会 6.(tim...
MASS SPECTROMETRY | Time-of-FlightM. GuilhausELSEVIEREncyclopedia of Analytical Science (Second Edition)
光谱分析中 time-of-flight mass 相关知识点: 试题来源: 解析 飞行时间质谱.质谱( Mass SPectrometry)是带电原子、分子或分子碎片按质荷比(或质量)的大小顺序排列的图谱.质谱仪是一类能使物质粒子高化成离子并通过适当的电场、磁场将它们按空间位置、时间先后或者轨道稳定与否实现质荷比分离,并检测强度后进行物质...
Time of Flight Mass Spectrometry (ToF-MS) is defined as a technique that measures the time taken by ions of different masses to travel a fixed distance after laser ionization, based on their mass-to-charge ratio. AI generated definition based on: Analytica Chimica Acta, 2010 ...
百度试题 结果1 题目time of flight-secondary ion mass spectrometry 是什么 相关知识点: 试题来源: 解析 飞行时间---次级离子质谱分析法secondary ion mass spectrometry网络释义secondary ion mass spectrometry:次级离子质谱分析法 | 次级离子质谱法反馈 收藏 ...
1)gas chromatography time-of-flight mass spectrometry(GC-TOF MS)气相色谱-飞行时间质谱(GC-TOFMS) 2)comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry (GC×GC/TOFMS)全二维气相色谱/飞行时间质谱(GC×GC/TOFMS) 3)Time of flight mass spectra (TOFMS)飞行时间质谱(TOFMS...
Tandem time-of-flight (TOF/TOF) mass spectrometry and the curved-field reflectron The curved-field reflectron (CFR), when used as the second mass analyzer in a tandem time-of-flight mass spectrometer, provides a design that enables the u... RJ Cotter,W Griffith,C Jelinek - 《Journal of...
spectrometry;collision-induceddissociation;electrospray;matrix-assistedlaserdesorption/ionizationINTRODUCTIONAlthoughfirstintroducedcommerciallyonly6yearsago,quadrupole–time-of-flight(TOF)massspectrometershaverapidlybeenembracedbytheanalyticalcommunityaspowerfulandrobustinstrumentswithuniquecapabilities.Inparticular,they...
Since the first flying of two double-focusing magnetic spectrometers on the Earth's upper atmosphere carried on Explorer XVII [17], mass spectrometry has become an important payload in space exploration missons [18]. In order to meet the demands of space detection task, research and application ...
Time-of-flight mass spectrometry coupled with liquid chromatography (TOF-MS) has been developed for screening and determination of benzodiazepines with an exact mass database. Benzodiazepines display similar chemical structures and molecular weights, and thus show similar mass spectra and protonated molecul...