Zobrazeno 1 - 7 of 7 pro vyhledávání: '"Welma T. S. Vilar"'
1
Chemometric-assisted UV spectrophotometric method for determination of N, N- diethyl-3-methylbenzamide in insect repellents
Autor: Welma T. S. Vilar, Daniella Iris Oliveira Silva, Márcio José Coelho Pontes
Publikováno v: Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 241
In recent years outbreaks of vector-borne diseases have caused great concern to the population, especially those diseases transmitted by mosquitoes. Repellents appear as an affordable alternative for prevention, making it increasingly important to co
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de4e83d8743040bb63681b1fa88083e4
https://pubmed.ncbi.nlm.nih.gov/32653822
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2
Development and validation of a HPLC method to quantify DEET and IR3535 in insect repellents
Autor: Márcio José Coelho Pontes, Mário César Ugulino de Araújo, Licarion Pinto, Emanuella Santos Sousa, Welma T. S. Vilar
Publikováno v: Analytical Methods. 10:1911-1917
The increasing number of cases of dengue, chikungunya, yellow fever and Zika virus has caused many people to use repellents to try to protect themselves from the Aedes aegypti mosquito that transmits these diseases. There are a variety of products th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fbf6fe03e4a4228af7654825b1a78b6a
https://doi.org/10.1039/c8ay00486b
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3
An analytical method for determination of quality parameters in cotton plumes by digital image and chemometrics
Autor: Maria Ivanda S. Gonçalves, Everaldo Paulo de Medeiros, Márcio José Coelho Pontes, Welma T. S. Vilar
Publikováno v: Computers and Electronics in Agriculture. 123:89-94
Display Omitted A simple and inexpensive analytical method based on digital image.Determination of quality parameters in cotton plumes.Comparative evaluation of two multivariate calibration techniques.Fast analysis of cotton plume without destroying
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c04d94513d338e023b8feac3a587f90
https://doi.org/10.1016/j.compag.2016.02.007
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4
Determination of N, N-diethyl-3-methylbenzamide and ethyl-butyl-acetylaminopropionate in insect repellent using near infrared spectroscopy and multivariate calibration
Autor: Welma T. S. Vilar, Mayara F. Barbosa, Mário César Ugulino de Araújo, Licarion Pinto, Márcio José Coelho Pontes
Publikováno v: Microchemical Journal. 152:104285
Aedes aegypti mosquitoes are vectors of diseases such as dengue, chikungunya, zika and yellow fever. With the increase in the incidence of these diseases the population has resorted to the use of repellents searching to protect themselves from mosqui
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec7f9d04978e7165168e54f18aab7e7b
https://doi.org/10.1016/j.microc.2019.104285
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5
A novel strategy for the classification of naturally colored cotton fibers based on digital imaging and pattern recognition techniques
Autor: Everaldo Paulo de Medeiros, Márcio José Coelho Pontes, Welma T. S. Vilar, Maria Ivanda S. Gonçalves
Publikováno v: Analytical Methods. 7:5869-5875
This study proposes the use of digital images and multivariate analysis as an alternative methodology for the classification of naturally colored cotton fiber, according to cultivar type. For this purpose, two groups were evaluated: the first compris
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d929938f23117d809573f6cef17123a1
https://doi.org/10.1039/c5ay01116g
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6
Classification of Individual Castor Seeds Using Digital Imaging and Multivariate Analysis
Autor: Everaldo Paulo de Medeiros, Márcio José Coelho Pontes, Rayanne Macedo Aranha, Welma T. S. Vilar
Publikováno v: Journal of the Brazilian Chemical Society, Volume: 26, Issue: 1, Pages: 102-109, Published: JAN 2015
Journal of the Brazilian Chemical Society v.26 n.1 2015
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
This paper presents a method based on digital imaging and multivariate analysis for the classification of castor seeds with respect to the cultivar type. For this purpose, two seed groups most commonly employed on Brazilian plantations were evaluated
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2c778020a0c4b15d1022f674b8f50af
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532015000100102&lng=en&tlng=en
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7
Non-Destructive NIR Spectrometric Cultivar Discrimination of Castor Seeds Resulting from Breeding Programs
Autor: Pollyne Borborema Alves de Almeida, Roberto Kawakami Harrop Galvão, Everaldo Paulo de Medeiros, Welma T. S. Vilar, M. Milani, Márcia Barreto de Medeiros Nóbrega, Maria Betania Hermenegildo dos Santos, Mário César Ugulino de Araújo, Adriano de Araújo Gomes
Publikováno v: Journal of the Brazilian Chemical Society.
This article proposes a near-infrared (NIR) diffuse reflectance spectrometric method for non-destructive discrimination of castor seeds from the two cultivars most commonly employed in Brazilian plantations (BRS Nordestina and BRS Paraguacu). For thi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1275f13c5565c1f3ef3cdae88291ab6b
https://doi.org/10.5935/0103-5053.20140068
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