Caffeine determination at a carbon fiber ultramicroelectrodes by fast-scan cyclic voltammetry

期刊论文
摘要:
Caffeine determination using a fast-scan voltammetric procedure at a carbon fiber ultramicroelectrod...
doi:
10.1590/S0103-50532012000400012
作 者:
Nunes, Ronaldo S.;Ca...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Mesophase evolution in heat-treated solid petroleum pitches

期刊论文
摘要:
A combination of analytical techniques was used to follow the mesophase evolution of petroleum pitch...
doi:
10.1590/S0103-50532012000700021
作 者:
França, Tanos C. C.;...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Ceramides and cytotoxic constituents from Ficus glumosa Del. (Moraceae)

期刊论文
摘要:
Chemical investigation of the stem bark of Ficus glumosa (Moraceae) yielded two new ceramides (2R,7E...
doi:
10.1590/S0103-50532012000300015
作 者:
Kuete, Victor;Univer...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

The future we want

期刊论文
摘要:
doi:
10.1590/S0103-50532012000500001
作 者:
Universidade Federal...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Electrospray ionization mass spectrometry fingerprinting of extracts of the leaves of Arrabidaea chica

期刊论文
摘要:
Arrabidaea chica (crajiru) is an important Amazonian plant. Its extracts are used as red pigments, a...
doi:
10.1590/S0103-50532012000300006
作 者:
Barata, Lauro E. S.;...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

8-O-4'-Neolignans from flower buds of Magnolia fargesii and their biological activities

期刊论文
摘要:
Three new 8-O-4'-neolignans, fargesiphenols A-C, together with six known neolignans, were isolated f...
doi:
10.1590/S0103-50532012000700011
作 者:
Gao, Xuemei;Li, Ganp...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Simultaneous spectrophotometric determination of Cu(II), Co(II) and Ni(II) using ratio spectra-continuous wavelet transformation in some food and environmental samples

期刊论文
摘要:
Ratio spectra-continuous wavelet transformation was used for the simultaneous determination of terna...
doi:
10.1590/S0103-50532012000700016
作 者:
Tarighat, Maryam Abb...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

In situ solvent formation microextraction based on ionic liquids and 1-(2-hydroxynaphtalene-1-yl)ethane oxime for determination of zinc

期刊论文
摘要:
A simple in situ solvent formation microextraction (ISFME) method based on use of ionic liquid (IL) ...
doi:
10.1590/S0103-50532012000100012
作 者:
University of Razi, ...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Education: a duty of all

期刊论文
摘要:
doi:
10.1590/S0103-50532012000700001
作 者:
Pinto, Angelo C.
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

A validated chiral LC method for the enantiomeric separation of repaglinide on immobilized amylose based stationary phase

期刊论文
摘要:
A simple, rapid, isocratic, normal phase chiral HPLC method was developed and validated for the enan...
doi:
10.1590/S0103-50532012000600008
作 者:
Dr. Babasaheb Ambedk...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society
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