Results 11 to 20 of about 118,551,513 (168)
Arquivos de Neuro-Psiquiatria, 1981 Foi padronizado um método de determinação dos níveis plasmáticos do ácido valpróico por cromatografia a gás. Trata-se de método rápido e exato, que evita etapas como evaporação ou derivação.
Lolita M. Tsanaclis, Telma G. Garcia
doaj +2 more sources
ÓLEO ESSENCIAL DE pimenta pseudocaryophyllus varo pseudocaryophyllus (Gomes) Landrum (MYRTACEAE) I: CROMATOGRAFIA A GÁS/ESPECTROMETRIA DE MASSA (CG/EM) [PDF]
Revista do Instituto Florestal, 1994 As folhas de Pimenta pseudocaryophyllus varo pseudocaryophyllus (Gomes) Landrum (Myrtaceae), coletadas no Parque Estadual de Campos do Jordão do Instituto Florestal, foram submetidas à destilação pelo método de CLEVENGER, obtendo-se rendimento em óleo ...
Massako Nakaoka Sakita +3 more
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Food Safety and Health, Volume 1, Issue 1, Page 93-101, July 2023., 2023 Radishes are an important source of bioactive isothiocyanates. We studied the bioaccessibility of isothiocyanates and I3C of radishes. Analytical implications of human intake were considered. Aqueous‐hydrolysis/DLLME showed good suitability for the bioaccessibility assessment.
Daniela Ramirez +3 more
wiley +1 more source
Journal of Ecology, Volume 110, Issue 1, Page 57-67, January 2022., 2022 Crude extract 1H NMR diversity synthesizes the compositional diversity and structural complexity of phytochemical mixtures. Plants can develop chemical diversity through different combinations of structural and compositional biosynthetic mechanisms; thus, methods incorporating both dimensions of phytochemical diversity can provide new theoretical ...
Casey S. Philbin +4 more
wiley +1 more source
Folin‐Ciocalteu Reaction Alternatives for Higher Polyphenol Quantitation in Colombian Passion Fruits
International Journal of Food Science, Volume 2021, Issue 1, 2021., 2021 Passiflora edulis Flavicarpa, Passiflora edulis Sims, and Passiflora ligularis Juss are Colombian fruits (passion fruits) of important exportation value. They act efficiently as antioxidants, antifungal, and antimicrobial compounds due to their high polyphenol content. Polyphenols can be quantified by the Folin‐Ciocalteu (F‐C) reaction.
Juan C. Carmona-Hernandez +3 more
wiley +1 more source
Estudo do óleo essencial do puxuri por cromatografia de gás /espectrometria de massa (CG/EM) . [PDF]
, 1985 Utilizando cromatografia gás-espectrometria de massa (CG/EM) com computador, descreve-se os constituintes voláteis do óleo essencial das sementes de puxuri (Licaria puchury-major).
Maia,J. G. Soares +5 more
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Chemical signature of colorectal cancer: case–control study for profiling the breath print
BJS Open, Volume 4, Issue 6, Page 1189-1199, December 2020., 2020 Available screening methods for colorectal cancer have poor reliability and low patient compliance. Cancer cells produce altered metabolites, which are transported in the bloodstream and released in the alveoli; these volatile organic compounds (VOCs) can be detected in exhaled breath.
D. F. Altomare +8 more
wiley +1 more source
Spasmolytic and Antibacterial Activity of Two Citrus sinensis Osbeck Varieties Cultivated in Mexico
Evidence-Based Complementary and Alternative Medicine, Volume 2017, Issue 1, 2017., 2017 Antibacterial activity on ATCC strains of Escherichia coli, Salmonella enterica, Salmonella enteritidis, and Salmonella choleraesuis and spasmolytic effect on contraction on rat ileum trips were determinate. Eight organic extracts (hexanic and methanolic) of albedo (mesocarp) and flavedo (pericarp) of two varieties (Valencian and National) of Citrus ...
Amanda Sánchez-Recillas +5 more
wiley +1 more source
Química Nova, 2012 This paper regards the implementation of the QuEChERS method for the analysis by GC-FPD of 53 different pesticides from the organophosphate class, in whole UHT and pasteurized milk.
Lucia Helena Pinto Bastos +5 more
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International Journal of Polymer Science, Volume 2016, Issue 1, 2016., 2016 Polyhydroxyalkanoates (PHAs) are biodegradable and biocompatible plastics. They are synthesized by a wide variety of microorganisms (i.e., fungi and bacteria) and some organisms such as plants, which share characteristics with petrochemical‐based plastics.
Javier Ricardo Gómez Cardozo +4 more
wiley +1 more source