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Avaliation of the environmental risk by metal distribution in sediments from lakes formed by Cambé Stream at Londrina
- 摘要：
- The proposal ofthis study was to obtain the profile of these metals distribution Al, Co, Cu,Pb, Cr, ...
- doi：
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10.1590/S0100-40422009000700012
- 作 者：
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Ohe, Thiago Hideyuki...
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Quimica nova
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Contamination of cosmetics and personal care products by n-nitrosamines
- 摘要：
- N-nitrosamines are carcinogenic compounds that have been found during the last three decades in a va...
- doi：
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10.1590/S0100-40422009000800030
- 作 者：
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Rath, Susanne;Canaes...
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Quimica nova
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Natural products derived sunscreen: market perspectives and interactions between business and research institutes
- 摘要：
- Ultraviolet radiation is the major exogenousmediators of skin damage. To prevent such damage, sunscr...
- doi：
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10.1590/S0100-40422009000300015
- 作 者：
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Lopes, Norberto Pepo...
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Quimica nova
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Application of a thiazolylazo dye as an acid-base indicator and determination of its acid ionization constants
- 摘要：
- The pKavalues of the 6-[2麓-(6麓-methyl-benzothiazolylazo)]-1,2-dihydroxy-3,5-benzenedisulfonicacid (M...
- doi：
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10.1590/S0100-40422009000700042
- 作 者：
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Oliveira, Hygor Rodr...
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Quimica nova
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Construction of a differential isothermal calorimeter of high sensitivity and low cost
- 摘要：
- The high cost ofsensitivity commercial calorimeters may represent an obstacle for many calorimetricr...
- doi：
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10.1590/S0100-40422009000600050
- 作 者：
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Trinca, Rafael Berga...
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Quimica nova
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Chemical and biological study of the Tephrosia toxicaria Pers.
- 摘要：
- The ethanol extracts from leaves, stems, pods and roots were assayed against the 3rd instar Aedes ae...
- doi：
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10.1590/S0100-40422009000200021
- 作 者：
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Braz-Filho, Raimundo...
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Quimica nova
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Modified synthetic niobia as catalyst in the oxidation of organic dye: utilization of H2O2 and atmospheric O2 as oxidants
- 摘要：
- In this work syntheticniobia was used to promote the oxidation of methylene blue dye in aqueous medi...
- doi：
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10.1590/S0100-40422009000600002
- 作 者：
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Magriotis, Zuy M.;Si...
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Quimica nova
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Synthesis and evaluation of the phytotoxic activity of α-Santonin derivatives
- 摘要：
- Mixtures of 伪-Santonin and various solvents were irradiated by either high or low pressure mercury l...
- doi：
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10.1590/S0100-40422009000200025
- 作 者：
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Demuner, Antônio J.;...
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- 期刊标题：
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Quimica nova
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Aerosol particle size distributions at a traffic exposed site and an urban background location in Oporto, Portugal
- 摘要：
- Aerosol size distributionsfrom 6 to 700 nm were measured simultaneously at an urban background site ...
- doi：
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10.1590/S0100-40422009000400019
- 作 者：
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Alves, Célia;Oliveir...
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Quimica nova
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Spectroscopy study on structural elucidation of flavonoids from Solanum jabrense Agra & Nee e S. paludosum Moric
- 摘要：
- The NMR (RMN1H, 13C, COSY, HMQC, HMBC, NOE-DIFF, NOESY) and mass spectra data analysis of sixteen fl...
- doi：
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10.1590/S0100-40422009000500008
- 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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Quimica nova
