2.UV检测是一种基于紫外-可见光谱的检测方法,它通过测量样品在特定波长下的吸光度来进行检测。 UV检测通常用于检测具有共轭体系的化合物,这些化合物在紫外光区域有吸收。 在类胡萝卜素的分析中,UV检测可以提供总类胡萝卜素的含量,但无法区分不同类胡萝卜素的含量。 3.UV检测提供的是总...
利用长光程 UV 流通池或质谱检测器能够提高传统 LC-UV 方法的灵敏度2。此外,偶尔观察到未知化合物,应当在 CV 研究中进行鉴定。本研究的目的是展示一种快速、灵敏、通用的 UHPLC/UV/MS 方法,用于对高效药物进行清洁验证,并建立一种更简单的鉴定未知化合物的方法。配备 UV 最大光强流通池的 Agilent 1290Infinity ...
UHPLC-UV-Q-Orbitrap HRMS combined with machine learning algorithms reveals the chemical markers of Euodiae Fructus among closely related cultivarsEuodiae FructusUHPLC-UV-Q-Orbitrap HRMSMachine learning algorithmsChemical markersClassification thresholds...
标准名称:婴儿配方奶粉和成人营养品——采用(超)高效液相色谱法(UPLC-UV)测定维生素C含量 英文名称:Infant formula and adult nutritionals — Determination of vitamin C by (ultra) high performance liquid chromatography with ultraviolet detection ((U)HPLC-UV) 标准状态:现行 发布日期:2018-07-02 文档简介 IS...
RP-UHPLC-UV-ESI-MS/MS analysis of LPMO generated C4-oxidized gluco-oligosaccharides after non-reductive labeling with 2-aminobenzamidedimethyl sulfoxide (PubChem CID: 679)deuterated sodium borohydride (PubChem CID: 24852210)LPMOLignocellulose
Validation and application of sub-2 μm core-shell UHPLC-UV-ESI-Orbitrap MS for identification and quantification of β-carotene and selected cleavage products with preceding solid-phase extraction. Anal Bioanal Chem 2014;406:2909-2924.G., MartanoE., BojaxhiI. C., ForstenlehnerC. G., ...
Our results show that RP-UHPLC-UV-ESI-MS in combination with non-reductively 2-AB labeling is a suitable technique for the separation and identification of LPMO-generated C4-oxidized gluco-oligosaccharides. 展开 关键词: dimethyl sulfoxide (PubChem CID: 679) deuterated sodium borohydride (PubChem...
8 1.7 µm Column. UHPLC-UV Method for the Determination of Esomeprazole Using a Syncronis C18 1.7 µm Column.UHPLC-UV Method for the Determination of Esomeprazole Using a Syncronis C18 1.7 µm Column.The article focuses on Ultra High Pressure Liquid Chromatography -ultra violet (UHPLC-...
An ultra-high-performance liquid chromatographic (UHPLC) separation was developed for six kava pyrones (methysticin, dihydromethysticin (DHM), kavain, dihydrokavain (DHK), desmethoxyyangonin (DMY), and yangonin), two unidentified components, and three Flavokavains (Flavokavain A, B, and ...
采用UHPLC-Q-TOF-MS/MS技术定性分析方法,探讨厚朴姜制前后以及不同姜制方法化学成分变化.定性采用正负离子扫描模式,利用Peakview1.2软件分析鉴定出35种成分,发现厚朴姜制前后质变成分较少,并结合Marker-View1.2.1软件进行主成分分析和t检验,得出6种主要差异性成分发现厚朴经过姜炙之后厚朴酚、厚朴三酚、十四烷酸、...