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Utilization of solid-phase extraction (SPE) for the determination of polycyclic aromatic hydrocarbons in environmental aqueous matrices
- 摘要：
- Polycyclic aromatic hydrocarbons (PAHs) are a great environmental concern mainly because of their to...
- doi：
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10.1590/S0100-40422007000300010
- 作 者：
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Cavalcante, Rivelino...
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- 期刊编号：
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- 期刊标题：
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Química Nova
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The use of pressure generated by a water column to control flow rates in flow analysis systems
- 摘要：
- This work presents a new approach to control the flow rate in hydrodynamic flow experiments. The com...
- doi：
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10.1590/S0100-40422007000700044
- 作 者：
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Universidade Federal...
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- 期刊编号：
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- 期刊标题：
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Química Nova
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Spatial-temporal diagnostic of herbicide occurrence in surface waters and sediments of Corumbataí River and main affluents
- 摘要：
- Residues of herbicides from sugarcane were monitored in waters and sediments of Corumbata铆 River and...
- doi：
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10.1590/S0100-40422007000500013
- 作 者：
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Armas, Eduardo Dutra...
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- 期刊编号：
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- 期刊标题：
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Química Nova
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Abitane diterpenoids isolation from Plectranthus barbatus
- 摘要：
- Plectranthus barbatus is largely used in the Northeast region of Brazil by the local population for ...
- doi：
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10.1590/S0100-40422007000800016
- 作 者：
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Braz-Filho, Raimundo...
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- 期刊编号：
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- 期刊标题：
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Química Nova
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Chemical biology: a modern strategy for the natural products research
- 摘要：
- This paper presents an overview of the Natural Products Research in Brazil in the last five years (2...
- doi：
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10.1590/S0100-40422007000600014
- 作 者：
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Gallo, Margareth Bor...
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- 期刊编号：
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- 期刊标题：
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Química Nova
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Sunscreens
- 摘要：
- Health problems related to UV radiation can be minimized by the appropriate use of sunscreens. Diffe...
- doi：
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10.1590/S0100-40422007000100027
- 作 者：
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Davolos, Marian Rosa...
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- 期刊编号：
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- 期刊标题：
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Química Nova
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Non-supervised pattern recognition methods: exploring chemometrical procedures for evaluating analytical data
- 摘要：
- An activity for introducing hierarchical cluster analysis (HCA) and principal component analysis (PC...
- doi：
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10.1590/S0100-40422007000200042
- 作 者：
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Ferreira, Márcia M. ...
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- 期刊编号：
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- 期刊标题：
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Química Nova
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Mechanicals resistance of thermosensitive hydrogels consisting of alginate-Ca2+ / PNIPAAm, type Semi-IPN
- 摘要：
- Thermosensitive hydrogels were synthesized using alginate-Ca2+ in association with a thermosensitive...
- doi：
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10.1590/S0100-40422007000700028
- 作 者：
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Youssef, Elza Yousse...
- 作者机构：
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- 期刊编号：
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- 期刊标题：
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Química Nova
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Flavonoidic biodiversiy and pharmacologic aspects in the species of the Ouratea and Luxemburgia genera (Ochnaceae)
- 摘要：
- This work describes the flavonoids and biflavonoids found in species of Ouratea and Luxemburgia as c...
- doi：
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10.1590/S0100-40422007000400038
- 作 者：
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Kaplan, Maria Auxili...
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- 期刊编号：
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- 期刊标题：
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Química Nova
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Structural and microstructural properties of Cu-doped manganites
- 摘要：
- We report a structural study on polycrystalline La0.86Sr0.14Mn1-y CuyO3+d samples (y = 0, 0.05, 0.10...
- doi：
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10.1590/S0100-40422007000700004
- 作 者：
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Universidade Federal...
- 作者机构：
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- 期刊编号：
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- 期刊标题：
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Química Nova
