Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Sandro Navickiene"'
Publikováno v:
Eclética Química, Vol 31, Iss 2, Pp 59-62 (2018)
A preliminary study was conducted to determine the residue levels of prochloraz in ginger samples treated with Sportak 450 CE (prochloraz as active ingredient) under laboratory conditions and cold-storage for 15 days at 10°C and 89% RH. Sampling
Externí odkaz:
https://doaj.org/article/5cafd84573d043f0ba625660a9ddd275
Autor:
Luciana POLESE, Eliana Freire Gaspar de Carvalho DORES, Elaine Fátima Galatti JARDIM, Sandro NAVICKIENE, Maria Lúcia RIBEIRO
Publikováno v:
Eclética Química, Vol 27, Iss 1 (2018)
Herbicides such as trifluralin, simazine, atrazine, metribuzin and metolachlor are used in Brazilian agriculture. The efficiency of a small scale method for determination of these herbicides and two degradation products (deisopropylatrazine and deeth
Externí odkaz:
https://doaj.org/article/68f4783a3dfb49bb9fd5da14070e9bd1
Autor:
Débora Santos Silva Bezerra, Marcell Mendes Santos Silva, Pedro Henrique Viana de Carvalho, Adriano Aquino, Sandro Navickiene
Publikováno v:
Química Nova, Vol 33, Iss 6, Pp 1348-1351 (2010)
A method based on matrix solid-phase dispersion and gas chromatography-mass spectrometry to determine procymidone, malathion, bifenthrin and pirimicarb in honey is described. The best results were obtained using 1.0 g of honey, 1.0 g of silica-gel as
Externí odkaz:
https://doaj.org/article/8a5a8c66cf1c4840a4ef926082366cc9
Autor:
Sandro Navickiene, Maria Lúcia Ribeiro
Publikováno v:
Química Nova, Vol 27, Iss 5, Pp 744-746 (2004)
A rapid and sensitive method is described for the determination of clofentezine residues in apple, papaya, mango and orange. The procedure is based on the extraction of the sample with a hexane:ethyl acetate mixture (1:1, v/v) and liquid chromatograp
Externí odkaz:
https://doaj.org/article/b0c985db16aa47ab8b35094743258de0
Autor:
Roberta Anjos de Jesus, Michel R.R. Souza, José Arnaldo Santana Costa, Sandro Navickiene, Maria E. de Mesquita, Alysson Santos Barreto
Publikováno v:
Journal of Consumer Protection and Food Safety. 16:83-91
Two isostructural metal–organic frameworks (MOFs) were tested as adsorbent materials in matrix solid-phase dispersion (MSPD) for the extraction of lindane, bifenthrin, and pirimicarb from freeze-dried chicken eggs (Gallus gallus domesticus). A vali
Publikováno v:
Journal of pharmaceutical and biomedical analysis. 218
Alkaloids play an important role in the chemical composition of tobacco, due to their effects that have led to the global consumption of this commodity. The β-carboline alkaloids present inhibitory action against the enzyme monoamine oxidase (MAO),
Autor:
Lucas Gabriel Teixeira Gouveia, José Arnaldo Santana Costa, Roberta Anjos de Jesus, Luis Fabrício Santana Santos, Maria E. de Mesquita, Sandro Navickiene
Publikováno v:
Inorganic Chemistry Communications. 101:45-51
The MCM-41 and MCM-48 mesoporous materials were tested for extraction of thiamethoxam, thiacloprid, thiophanate-methyl, teflubenzuron, and bifenthrin from the fruit of soursop (Annona muricata), using liquid chromatography with ultraviolet diode arra
Publikováno v:
Journal of the Brazilian Chemical Society v.30 n.1 2019
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 30, Issue: 1, Pages: 180-187, Published: JAN 2019
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 30, Issue: 1, Pages: 180-187, Published: JAN 2019
An extraction method based on solid-phase extraction was developed to determine the major alkaloid components, N,N-dimethyltryptamine, harmine, harmaline, harmalol, and tetrahydroharmine, in ayahuasca using ultra-performance liquid chromatography-tan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1bef3575dba77b8383ab1de238992a1
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000100180
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532019000100180
Autor:
Alberto Wisniewski, Luciane P. C. Romão, Ana Karla de Souza Abud, Sandro Navickiene, Joselaine Carvalho Santana
Publikováno v:
Biomass and Bioenergy. 133:105454
Organosolv pretreatment reactions with glycerol, applied to water hyacinth, were performed with evaluation of the effects of the following variables: time (10–120 min), temperature (100–220 °C), solid/liquid ratio (1–6%), water percentage (0
Publikováno v:
Journal of AOAC International.
Background: A simple and effective extraction method based on ultrasonic solvent extraction and liquid-liquid microextraction (as the cleaning step) was developed to determine seven pesticide residues in roasted coffee (Coffea arabica) using ultra-pe