Chemical profiling analysis of Maca using UHPLC-ESI-Orbitrap MS coupled with UHPLC-ESI-QqQ MS and the neuroprotective study on its active ingredients(Maca), originated from Peru, has been cultivated widely in China as a popular health care food. However, the chemical and effective studies of ...
(UHPLC-ESI-Qq Q-MS/MS)新方法,为产品提供全面高效的质量控制方法.方法采用Agilent 1290II高效液相色谱系统,Agilent Zorbax Eclipse Plus C18色谱柱(150 mm×4.6 mm,3.5μm),乙腈-0.1%甲酸水溶液为流动相进行梯度洗脱;采用正负离子多反应监测模式对各成分特定离子对进行监测,测定新天泰1号样品中19种活性成分...
采用正负离子多反应监测模式对药物成分的特定离子进行监测,测定复方景川片中的药物成分含量.结果:UHPLC-ESI-QQQ-MS/MS技术用于复方景川片中的药物成分进行分析在15 min内即可得出结果,药物中的峰面积与质量浓度有...
UHPLC-ESI-Orbitrap MS was the valid solu- tion for the chemical analysis of secondary metabolites in Maca, which could provide accurate full MS and MS/ MS fragments measurements of the target compounds with high sensitivity and precision. For quantitative anal- ysis, UHPLC-ESI-QqQ MS could ...
SulfoquinovosyldiacylglycerolsHPLC-ESI-QqQ-MS/MSMethod validationThe use of macro- and microalgae, as well as cyanobacteria, becomes increasingly important for human nutrition, even in Western diets. Health effects, positive as well as negative, are believed to result mainly from minor components ...
UHPLC-ESI-QqQ-MS/MS多药效质量控制目的:探讨分析复方景川片多药效成分质量控制的有效方法.方法:采用基于UHPLC-ESI-QQQ-MS/MS技术的方法对复方景川片进行梯度洗脱,采用正负离子多反应监测模式对药物成分的特定离子进行监测,测定复方景川片中的药物成分含量.结果:UHPLC-ESI-QQQ-MS/MS技术用于复方景川片中的药物成分...
Herein, the amygdalin content of 20 varieties of nonbitter, semibitter, and bitter almonds from four primary growing regions of California was determined using solid-phase extraction and ultrahigh-pressure liquid chromatography electrospray triple-quadrupole mass spectrometry (UHPLC-(ESI)QqQMS/MS). The...
UPLC-DAD-QqQ-MS and LC-DAD-ESI-QTOF-MS were used for the rapid profiling of phenolic compounds, mainly hydrolysable tannins. Green leaves consisted of 55% ellagitannins, 29% gallic acid derivatives and 11% flavonoids, with the remaining gallic acid, arbutin, bergenin and caffeoyl quinic acid...
Analysis of proanthocyani- dins in almond blanch water by HPLC-ESI-QqQ-MS/MS and MALDI-TOF/TOF [J] . Food Research International, 2012, 49 (2): 798-806.Perez-Jimenez, J.; Torres, J.L. Analysis of proanthocyanidins in almond blanch water by HPLC-ESI-QqQ-MS/MS and MALDI-TOF/TOF ...
HPLC–ESI/MS QQQABTS+ scavengingHypericum perforatum LRutinHyperosideQuercitrinQuercetinHypericum perforatum L. (HPL) has been used as a beneficial herb on menopause related syndromes for many years due to its antioxidant activity by inhibiting lipid oxidation. The major bioactive gradients of HPL are ...