Study of acute toxicity and investigation of the presence of β-N-methylamino-L-alanine in the Gunnera manicata L. a species native to Southern Brazil

Autor: Kristiane de Cássia Mariotti, Fabiano Barreto, Gabriela Cristina Schmitt, Ivomar Zancanaro, Eliane Dallegrave, Rodrigo Bustos Singer, Mirna Bainy Leal, Renata Pereira Limberger

Publikováno v: Brazilian Journal of Pharmaceutical Sciences, Vol 47, Iss 3, Pp 623-628 (2011)

Gunnera (Gunneraceae) forms a complex association with the cyanobacterium Nostoc puctiforme L. Gunnera-Nostoc symbiosis is the only one reported involving a flowering plant, and results in the formation of the neurotoxic amino acid β-N-methylamino-L

Externí odkaz: https://doaj.org/article/2fcf051dc715437787a2ba7daa39292b

Prescription and illicit psychoactive drugs in oral fluid—LC–MS/MS method development and analysis of samples from Brazilian drivers

Autor: Paula O. Bohel, Renata Pereira Limberger, Eloisa Dutra Caldas, Maíra Kerpel dos Santos, Flavio Pechansky, Ivomar Zancanaro, Raquel Brandini De Boni

Publikováno v: Forensic Science International. 223:208-216

This study is part of a larger project designed to investigate the prevalence of psychoactive drug (PAD) use among Brazilian drivers. In this paper we describe the development and validation of an analytical method to analyze 32 prescription and illi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e7d80b0a457e97e990e54bbeee9df6c
https://doi.org/10.1016/j.forsciint.2012.08.048

Which Amphetamine-Type Stimulants Can Be Detected by Oral Fluid Immunoassays?

Autor: Daniele Z Souza, Paula O Boehl, Eloisa Comiran, Débora S Prusch, Ivomar Zancanaro, Alexandre M Fuentefria, Flavio Pechansky, Paulina C.A.V Duarte, Raquel B De Boni, Pedro E Fröehlich, Renata P Limberger

Publikováno v: Therapeutic Drug Monitoring. 34:98-109

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cd0cee3629017af0735813232011a834
https://doi.org/10.1097/ftd.0b013e31823d8e8d

Chemical Profiling of Street Cocaine from Different Brazilian Regions

Autor: Thiago R.L.C. Paixão, Adriano O. Maldaner, Jorge Jardim Zacca, Élvio D. Botelho, Leonardo B. Kasakoff, Ivomar Zancanaro, Raimundo C. A. Melo, Celinalva da Silva Lima Oliveira, Jose Luiz Costa

Publikováno v: Journal of the Brazilian Chemical Society v.27 n.4 2016
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 27, Issue: 4, Pages: 719-726, Published: APR 2016

This work describes results of chemical profiling by gas chromatography with flame ionization detector (GC-FID) of the main components (purity, oxidation level, and cutting agents) in 642 street cocaine samples seized in five different Brazilian Stat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf1c4a6e8638edac2b50d12763d4022d
https://doi.org/10.5935/0103-5053.20150321

Triterpenes and new saponins from Ilex chamaedryfolia: chemotaxonomic tool to ilex species differentiation

Autor: Eloir Paulo Schenkel, Ivomar Zancanaro, Grace Gosmann, Dominique Guillaume, Mariana C. de Cardoso, Viviane Silva Pires, Claiton Leoneti Lencina, Pascal Sonnet

Publikováno v: Química Nova v.34 n.2 2011
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Vol 34, Iss 2, Pp 222-225 (2011)
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Química Nova, Volume: 34, Issue: 2, Pages: 222-225, Published: 2011

Three saponins were isolated from leaves of Ilex chamaedryfolia. Their structures were established by spectroscopic and mass spectrometry data as the new saponin 3β-O-β-D-glucopyranosyl-(1-3)-α-L-arabinopyranosyl-20( S)-19α-hydroxyurs-12-en-28-oi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5089a29a528344759fc4f647c22e2db
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000200010