Biomolecular archaeology: preliminary steps for interpretation of the origin of preserved organic residues in Brazilian pre-colonial potsherds

期刊论文
摘要:
Organic residue analysis of archaeological potsherds is a well-established method for determining th...
doi:
10.1590/S0100-40422006000300004
作 者:
Hansel, Fabrício Aug...
作者机构:
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Química Nova

Chiral analysis by mass spectrometry using the kinetic method

期刊论文
摘要:
Novel and quantitative mass spectrometry methods for rapid and accurate enantiomeric excess determin...
doi:
10.1590/S0100-40422006000200027
作 者:
Augusti, Rodinei;Aug...
作者机构:
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Química Nova

Direct determination of molybdenum in polyvitaminic tablets by voltammetry in non-aqueous media

期刊论文
摘要:
Adsorptive stripping voltammetry carried out in a homogeneous ternary solvent composed of N,N-dimeth...
doi:
10.1590/S0100-40422006000100027
作 者:
Universidade Federal...
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Química Nova

Study of recovery and stability of derivatized gliphosate and AMPA in soil using national resins

期刊论文
摘要:
In the present paper we studied the recoveries of glyphosate, N-(phosphonomethyl)glycine (GLY) and i...
doi:
10.1590/S0100-40422006000600037
作 者:
Matta, Marcia Helena...
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Química Nova

A novel synthesis of alpha-bromoacetophenones and its application in obtaining 2-benzoylbenzofuranes

期刊论文
摘要:
a-Bromoacetophenones are important in organic synthesis. They have been widely used as precursors of...
doi:
10.1590/S0100-40422006000600022
作 者:
Lopes, Cláudio C.;Ca...
作者机构:
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Química Nova

A proposal for the teaching of Qualitative Analytical Chemistry

期刊论文
摘要:
In recent years, because of the need for a more flexible curriculum established by the Curriculum Gu...
doi:
10.1590/S0100-40422006000600039
作 者:
Costa, Carla Regina;...
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Química Nova

Nitrogen oxidation states elucidated by X-ray absorption nitrogen K-edge spectroscopy

期刊论文
摘要:
The potentialities of X-ray Absorption Near Edge Spectroscopy (XANES) of the N K edge (N K) obtained...
doi:
10.1590/S0100-40422006000400033
作 者:
Nascimento, Gustavo ...
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Química Nova

Evaluation of the essential oil of Aloysia sellowii (Briquet) moldenke (Verbenaceae) from South Brazil

期刊论文
摘要:
This work was performed with the aim of evaluating the chemical variability among samples of Aloysia...
doi:
10.1590/S0100-40422006000200004
作 者:
Pansera, Marcia Regi...
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Química Nova

Evaluation of the reactivity of iron sulfides and mining wastes: methodology based on cyclic voltammetry

期刊论文
摘要:
The mining industry around the world produces an important amount of wastes, which by their high tox...
doi:
10.1590/S0100-40422006000300020
作 者:
Universidad Autónoma...
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Química Nova

Recovery of elements from spent hydrorefining catalysts after fusion with KHSO4

期刊论文
摘要:
This work describes a process for metal recovery from spent NiMo and CoMo/Al2O3 commercial hydrorefi...
doi:
10.1590/S0100-40422006000400038
作 者:
Afonso, Julio Carlos...
作者机构:
期刊编号:
期刊标题:
Química Nova
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