Mass 英[mas]美 [mæs] 释 义 n. 块,团;群众,民众;大量,众多;质量 adj. 群众的,民众的;大规模的,集中的 vi. 聚集起来,聚集 vt. 使集合 例 句 The sky was a mass of black cloud out of which lightnings flashed.天空布满乌云,闪电从中掠过。 Spectrometry 英[spek'trɒmɪtrɪ] 释 义...
Figure 5. Product ion mass spectrum of protonated reserpine, m/z 609, obtained with the Q2 linear ion trap at a mass scan rate of 5200 Th s−1. (Reproduced with permission from Hager JW (2002) A new linear ion trap mass spectrometer. Rapid Communications in Mass Spectrometry 16: 512–...
(10−15, 10−18, 10−21). Peak intensities are proportional to the amount of the material or concentration of the compound present (such as light absorption in photometry). This is the basis ofquantitative measurements. Mass spectrometry is alsovery selective,so trace components may be ...
Kit enables stepwise lysis of cells into functional cytoplasmic, membrane, nuclear-soluble, chromatin bound, and cytoskeletal protein fractions using low speed microcentrifugation in less time than traditional methods and with high reproducibility, for optimized downst...
PURPOSE: To select switching of a peak and mass so as to have an integer step of a constant number every mass peak over mass range, and facilitate the digital selection of the specific mass peak, especially in low mass. ;CONSTITUTION: In a mass spectrometry method and a mass spectrometer ...
1、质谱质谱 Mass SpectrometrySpectrometry NOT SpectroscopylSpectroscopy n. 光谱学, 波谱学, 光谱仪lSpectrometry n. 度谱术,质谱计lSpectrometry : SpectrometerlAbbreviated to: Mass spec. or MS质谱例子质谱例子m /z1 52 94 35 78 59 91 1 31 4 27 1MS identifies analytes by:pProducing gas phase io...
质谱Mass Spectrometry (MS) - 仪器信息网.PPT,质谱 Mass Spectrometry (Mass) 以某种方式使有机分子电离,碎裂,然后按离子的质荷比(m/z)大小把生成的各种离子分离,检测它们的强度,并将其排列成谱,这种研究方法叫做质谱法,简称质谱。 离子按其质荷比大小排列而成的谱
measuresthemass(m)oftheindividualions.MassSpectrometryIntroduction:5•Thetallestpeakinthemassspectrumiscalledthebasepeak.•ThebasepeakmayalsobetheMpeak,althoughthismaynotalwaysbethecase.•Isotopes:•ThoughmostCatomshaveanatomicmassof12,1.1%haveamassof13.Thus,13CH4isresponsibleforthepeakatm/z=87inhexane....
Spectrometry:SpectrometerAbbreviatedto:Massspec.orMS 质谱例子 43 57 2915 718599113 142 m/z MSidentifiesanalytesby:ProducinggasphaseionsSeparatingtheseionsaccordingtom/zratioDetectingtheions Sensitive:Detectmoleconcentrations 乙醇的质谱图相对丰度 31乙醇 2715 4546m/e 相对丰度(RA)——以图中...
Mass spectrometry software This article reads like a news release, or is otherwise written in an overly promotional tone.Please help rewrite this article from