Diffusion coefficients of metals in non-conventional materials (agarose and cellulose acetate) used in the diffusive gradients in thin films technique
摘要：
The DGT technique allows one to measure quantitatively free and labile metal species in aquatic syst...
doi：
10.1590/S0100-40422012000700014
作 者：
Colaço, Camila Destr...
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Química Nova
Determination of polychlorinated biphenyls in corn by solid phase extraction followed by gas chromatography-mass spectrometry
摘要：
This paper describes an analytical method for analyzing polychlorinated biphenyls in corn samples us...
doi：
10.1590/S0100-40422012000300021
作 者：
Costabeber, Joni Hil...
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Química Nova
Optimization of wood flour acetylation by factorial design and partial least squares regression
摘要：
Acetylation was performed to reduce the polarity of wood and increase its compatibility with polymer...
doi：
10.1590/S0100-40422012000900011
作 者：
Pinheiro, Luís A.;Un...
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Química Nova
Distribution of chemical compartments of soil organic matter and c stocks of a cambisol from south Brazil as affected by Pinus afforestation
摘要：
Distribution and stocks of soil organic matter (SOM) compartments after Pinus monoculture introducti...
doi：
10.1590/S0100-40422012000700009
作 者：
Bertotto, Francielle...
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Química Nova
Determination of Cu, Fe, Mn, Zn and total protein content in wheat and soybean samples after sequential extraction procedure
摘要：
A sequential extraction procedure was applied to wheat and soybean seed samples. The total protein c...
doi：
10.1590/S0100-40422012001000006
作 者：
Bittencourt, Leila M...
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Química Nova
Preconcentration, determination and speciation of iron by solid-phase extraction using dimethyl (E)-2-[(Z)-1-acetyl)-2-hydroxy-1-propenyl]-2-butenedioate
摘要：
A new sensitive and selective procedure for speciation of trace dissolved Fe(III) and Fe(II), using ...
doi：
10.1590/S0100-40422012000300018
作 者：
Zolali, Amin;Khayati...
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Química Nova
Monitoring of praseodymium(III) ions in aqueous solutions, soil and sediment samples by a PVC membrane sensor based on a furan-triazole derivative
摘要：
A furan-triazole derivative has been explored as an ionophore for preparation of a highly selective ...
doi：
10.1590/S0100-40422012001000016
作 者：
Islamic Azad Univers...
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Química Nova
Development of an electrochemical microcell for studies of micro regions
摘要：
The construction and optimization of a device that can be applied to electrochemical studies in flat...
doi：
10.1590/S0100-40422012000100038
作 者：
Akita, Adriano Helen...
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Química Nova
Determination of Mn and Zn in rice by energy dispersive x-ray fluorescence spectrometry
摘要：
A simple, fast and inexpensive method was developed to determine essential elements in pellets of ri...
doi：
10.1590/S0100-40422012000600012
作 者：
Korn, Maria das Graç...
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Química Nova
Volatile and non-volatile compounds and antimicrobial activity of Mansoa difficilis (Cham.) Bureau & K. Schum: (Bignoniaceae)
摘要：
Essential oil from the leaves of Mansoa difficilis was analyzed by GC/MS. Oct-1-en-3-ol (49.65%) was...
doi：
10.1590/S0100-40422012001100030
作 者：
Museu Paraense Emíli...
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Química Nova
