scholarly journals Strategies for the multi-residue analysis of 100 pesticides by liquid chromatography–triple quadrupole mass spectrometry

2012 ◽  
Vol 1249 ◽  
pp. 164-180 ◽  
Author(s):  
Oscar Núñez ◽  
Héctor Gallart-Ayala ◽  
Imma Ferrer ◽  
Encarnación Moyano ◽  
Maria Teresa Galceran
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Residue Analysis ◽  
Triple Quadrupole ◽  
Quadrupole Mass ◽  
Triple Quadrupole Mass Spectrometry ◽  
Quadrupole Mass Spectrometry

scholarly journals Determination of Polyphenols in Ilex kudingcha and Insect Tea (Leaves Altered by Animals) by Ultra-high-performance Liquid Chromatography-Triple Quadrupole Mass Spectrometry (UHPLC-QqQ-MS) and Comparison of Their Anti-Aging Effects

2021 ◽  
Vol 11 ◽  
Author(s):  
Jianfei Mu ◽  
Fuping Yang ◽  
Fang Tan ◽  
Xianrong Zhou ◽  
Yanni Pan ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Triple Quadrupole ◽  
Aging Effects ◽  
Quadrupole Mass ◽  
Triple Quadrupole Mass Spectrometry ◽  
Quadrupole Mass Spectrometry

Ilex kudingcha C.J. Tseng tea and insect tea, as traditional Chinese teas, are favored for their original craftsmanship, unique flavor, and biological functionality. In this study, ultra high-performance liquid chromatography-triple quadrupole mass spectrometry (UHPLC-QqQ-MS) was used to analyze the bioactive components of the extracts of Ilex kudingcha and insect tea, and D-galactose-induced aging mice were used to compare the in vivo anti-aging effects of Ilex kudingcha and insect tea extracts. The results were remarkable, UHPLC-QqQ-MS analysis showed that ITP contains 29 ingredients, while IKDCP contains 26 ingredients. However, due to the large differences in the content of the main chemical components in IKDCP and ITP, the effects are equally different. At the same time, the in vivo research results suggesting that the anti-aging effects of IKDCP and ITP (500 mg/kg) include the regulation of viscera indices of major organs; improvement in liver, skin, and spleen tissue morphology; decreased production of inflammatory cytokines; up regulation of SOD, CAT, GSH, GSH-PX, and T-AOC and down regulation of NO and MDA levels in serum and liver tissue; reductions in the concentration of pro-inflammatory factors, and increases in the concentration of anti-inflammatory factor. RT-qPCR and western blot assay also showed that IKDCP and ITP affect anti-aging by regulating the gene and protein expression of GSH-PX, GSH1, SOD1, SOD2, and CAT. The overall results indicate that ITP is more effective in treating oxidative damage in aging mice induced by D-galactose. Thus, ITP appears to be an effective functional drink owing to its rich nutritional components and anti-aging activities.

Sign in / Sign up

Export Citation Format

Share Document