1 resultado para Mass spetrum analysis
em Bioline International
Filtro por publicador
- Aberystwyth University Repository - Reino Unido (3)
- Academic Archive On-line (Jönköping University; Sweden) (1)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (2)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (1)
- Aquatic Commons (4)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (11)
- Archimer: Archive de l'Institut francais de recherche pour l'exploitation de la mer (2)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (5)
- Aston University Research Archive (9)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (14)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (10)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (1)
- Bioline International (1)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (38)
- Boston University Digital Common (1)
- Brock University, Canada (10)
- Bucknell University Digital Commons - Pensilvania - USA (4)
- CaltechTHESIS (8)
- Cambridge University Engineering Department Publications Database (14)
- CentAUR: Central Archive University of Reading - UK (15)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (150)
- Cochin University of Science & Technology (CUSAT), India (1)
- Coffee Science - Universidade Federal de Lavras (1)
- Collection Of Biostatistics Research Archive (1)
- CORA - Cork Open Research Archive - University College Cork - Ireland (3)
- Deakin Research Online - Australia (13)
- Digital Commons at Florida International University (15)
- DigitalCommons@The Texas Medical Center (5)
- Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (1)
- DRUM (Digital Repository at the University of Maryland) (1)
- Duke University (5)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (6)
- Glasgow Theses Service (1)
- Greenwich Academic Literature Archive - UK (3)
- Helda - Digital Repository of University of Helsinki (32)
- Illinois Digital Environment for Access to Learning and Scholarship Repository (1)
- Indian Institute of Science - Bangalore - Índia (108)
- INSTITUTO DE PESQUISAS ENERGÉTICAS E NUCLEARES (IPEN) - Repositório Digital da Produção Técnico Científica - BibliotecaTerezine Arantes Ferra (1)
- Instituto Nacional de Saúde de Portugal (1)
- Instituto Politécnico do Porto, Portugal (11)
- Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States (1)
- Massachusetts Institute of Technology (2)
- Memorial University Research Repository (2)
- National Center for Biotechnology Information - NCBI (16)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (6)
- Portal de Revistas Científicas Complutenses - Espanha (2)
- Publishing Network for Geoscientific & Environmental Data (27)
- QSpace: Queen's University - Canada (2)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (128)
- Queensland University of Technology - ePrints Archive (133)
- Repositório Científico da Universidade de Évora - Portugal (1)
- Repositório Digital da UNIVERSIDADE DA MADEIRA - Portugal (3)
- Repositório Institucional da Universidade de Aveiro - Portugal (4)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (55)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (1)
- SAPIENTIA - Universidade do Algarve - Portugal (1)
- Universidad de Alicante (3)
- Universidad del Rosario, Colombia (1)
- Universidad Politécnica de Madrid (3)
- Universidade Complutense de Madrid (1)
- Universidade Federal do Pará (1)
- Universita di Parma (1)
- Université de Lausanne, Switzerland (18)
- Université de Montréal (2)
- Université de Montréal, Canada (14)
- University of Michigan (5)
- University of Queensland eSpace - Australia (4)
- University of Washington (3)
- WestminsterResearch - UK (3)
- Worcester Research and Publications - Worcester Research and Publications - UK (2)
Resumo:
Purpose: This study analyzes the chemical composition of ethanol root extracts of Maesa perlaria var formosana by gas chromatography-mass spectrometry (GC-MS). Methods: The dried root of Maesa perlaria var formosana was extracted with 95 % ethanol for composition analysis under the following optimum GC-MS conditions: 250 °C inlet temperature, 250 °C MSD detector temperature, and GC oven temperature programmed as follows: initial temperature held at 70 °C for 15 min, then increased at a rate of 2.5 °C/min and held at 170 °C for 15 min; then raised at a rate of 2 °C/min and kept at 180 °C for 20 min; then raised at 2 °C/min and kept at 250 °C for 20 min. Finally, it was raised at 3 °C/min and kept at 280 °C for 15 min. Results: A total of 59 chemical compounds were identified, representing 88.82 % of the composition of the ethanol extracts. The three major components, include 2,4-di-tert-butylphenol (16.76 %), stigmasterol (15.86 %) and campesterol (7.33 %). Conclusion: The results show that a total of 59 components were identified in the ethanol extract of Maesa perlaria var. formosana. The major component, 2,4-Di-tert-butylphenol, exhibits various biological activities.