2010年2月6日 · All mass spectra in this site (plus many more) are available from the NIST/EPA/NIH Mass Spectral Library. Please see the following for information about the …

Metal ions form adducts with varying numbers of substrates to give characteristic ESI+ ions. In this poster, the accurate mass of elements, organic solvents and all potential contaminant ions …

When interpreting accurate mass data, it is often possible to obtain useful information from the mass differences seen in the spectrum. Below are some common mass differences we have …

2024年5月27日 · interpret the fragmentation pattern of the mass spectrum of a relatively simple, known compound (e.g., hexane). use the fragmentation pattern in a given mass spectrum to …

Allow more atoms of elements in formula than specified. (Help) You may search for species based on molecular weight values in two ways: Specify a single value; the system will search for …

生物质谱分析（Biological mass spectrometry）是以质谱分析技術用于精确测量生物大分子，如蛋白质，核苷酸和糖类等的分子量，并提供分子结构訊息。 对存在于生命复杂体系中的微量或 …

Mass Spectrometry •NOT part of electromagnetic spectrum •What is measured are (typically) positively charged ions •Under certain circumstances negative ions can be detected •Once …

How the mass spectrometer works . . . The mass spectra of elements . . . How the mass spectrum of an element can be used to find its relative atomic mass. The formation of fragmentation …

質譜 （德語： Massenspektrometrie，英語： mass spectrometry，縮寫：MS）是一種電離化學物質並根據其 質荷比 （質量 - 電荷 比）對其進行排序的分析技術。 簡單來說，質譜測量樣品內 …

GitHub - PNNL-Comp-Mass-Spec/MASIC: MASIC generates selected ion chromatograms (SICs) for all of the parent ions chosen for fragmentation in an LC-MS/MS analysis, characterizing the …