Cytochalasins produced by Xylaria sp., an endophytic fungus from Piper aduncum

期刊论文
摘要:
A chemical study on the EtOAc extract produced by Xylaria sp., an endophytic fungus from Piper adunc...
doi:
10.1590/S0100-40422010001000006
作 者:
Pfenning, Ludwig H.;...
作者机构:
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Química Nova

Enzymatic modification on rice flour seeking the production of resitant starch

期刊论文
摘要:
The aim of this work was to study the enzymatic modification on rice flour using lipase pancreatic a...
doi:
10.1590/S0100-40422010000200021
作 者:
Universidade Federal...
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Química Nova

Use of manganese oxides recovered from spent batteries in electrocatalysis of oxygen reduction reaction in alkaline medium

期刊论文
摘要:
The oxygen reduction reaction was studied in alkaline media using manganese oxides obtained from spe...
doi:
10.1590/S0100-40422010000300043
作 者:
Universidade Federal...
作者机构:
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Química Nova

Development and validation of a simple and rapid analytical method by UV spectroscopy for acyclovir quantification in hydrophilic matrices for sustained release

期刊论文
摘要:
This work reports the validation of an analytical UV spectrophotometric method to assay acyclovir in...
doi:
10.1590/S0100-40422010000300047
作 者:
Pereira, Airton Vice...
作者机构:
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期刊标题:
Química Nova

Aporphine alkaloids from Ocotea macrophylla (Lauraceae)

期刊论文
摘要:
Four aporphine alkaloids from the wood of Ocotea macrophylla (Lauraceae) were isolated and character...
doi:
10.1590/S0100-40422010000400021
作 者:
Universidad Nacional...
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期刊标题:
Química Nova

Determination of phenolic compounds by isocratic high performance liquid chromatografic method during storage of yerba-mate

期刊论文
摘要:
Different phenolic compound, 5- caffeoylquinic acid (5-CQA), caffeic acid (AC) and rutin (Ru) conten...
doi:
10.1590/S0100-40422010000100022
作 者:
Ribani, Marcelo;Dutr...
作者机构:
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期刊标题:
Química Nova

Solvation simplified

期刊论文
摘要:
The effects of solvents on chemical phenomena is complex because there are various solute-solvent in...
doi:
10.1590/S0100-40422010001000031
作 者:
El Seoud, Omar A.;Un...
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期刊标题:
Química Nova

Recovery of manganese and zinc from spent Zn-C and alkaline batteries in acidic medium

期刊论文
摘要:
The anode and the internal paste of spent Zn-C and alkaline batteries were leached with 2 mol L-1 H2...
doi:
10.1590/S0100-40422010000900024
作 者:
Universidade Federal...
作者机构:
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期刊标题:
Química Nova

Spectrophotometric determination of cephalexin in pharmaceutical formulations exploring its charge transfer reaction with quinalizarin

期刊论文
摘要:
This work proposes a new simple and fast spectrophotometric method for cephalexin determination in p...
doi:
10.1590/S0100-40422010000400029
作 者:
Universidade Federal...
作者机构:
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期刊标题:
Química Nova

Possibilities and limitations of using temperature in reversed phase liquid chromatography

期刊论文
摘要:
High-temperature liquid chromatography (HTLC) is a technique that presents a series of advantages in...
doi:
10.1590/S0100-40422010000400033
作 者:
Bottoli, Carla B. G....
作者机构:
期刊编号:
期刊标题:
Química Nova
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