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...
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-...
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、...
Background: The purpose of the current study was to develop a selective, precise, fast economical and advanced reverse phase ultra-high-performance liquid chromatography (UHPLC UV) method and validate it for the simultaneous estimation of cholecalciferol and its analogue 25-hydroxycholecalciferol in li...
oil palm leaves; luteolin and apigenin derivatives; UHPLC-UV/PDA method validation; simultaneous quantification; antioxidant activity; partial least square analysis Graphical Abstract1. Introduction The oil palm (Elaeis guineensis Jacq.) tree is a primary industrial crop in many countries, including ...