Chromatographic determination of riboflavin in the presence of tetracyclines in skimmed and full cream milk using fluorescence detection

期刊论文
摘要:
An easy and simple chromatographic method for the determination of riboflavin in bovine milk in the ...
doi:
10.1590/S0103-50532005000700013
作 者:
Universidade Estadua...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Synthesis and tautomeric studies of enamines from 1-(n-Hexyl)-3-methyl-2-pyrazolin-5-one

期刊论文
摘要:
1-(n-Hexyl)-3-methyl-2-pyrazolin-5-one was acylated with acid chlorides. Condensation of acyl deriva...
doi:
10.1590/S0103-50532005000200009
作 者:
Pérez, Fredy R.;Alde...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Titanium and vanadium ethylene polymerization catalysts containing tris(pyrazolyl)borate ligand: Effects of polymerization parameters on activity and polymer properties

期刊论文
摘要:
The ethylene polymerization behavior of a series of titanium(IV) and vanadium(V) complexes, [Tp'MXCl...
doi:
10.1590/S0103-50532005000700029
作 者:
Gil, Marcelo P.;Univ...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Muscicapines, a new class of guaiane-type sesquiterpene alkaloids from Croton muscicapa

期刊论文
摘要:
Three new guaiane-type sesquiterpene alkaloids, muscicapine A (1), muscicapine B (2), and muscicapin...
doi:
10.1590/S0103-50532005000400010
作 者:
Braz-Filho, Raimundo...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Inhibition of the symbiotic fungus of leaf-cutting ants by coumarins

期刊论文
摘要:
Leaf-cutting ants are known to be a serious pest for agriculture due to the high amounts of vegetal ...
doi:
10.1590/S0103-50532005000400031
作 者:
Victor, Sandra R.;Bu...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Optimized and validated spectrophotometric methods for the determination of lisinopril in pharmaceutical formulations using ninhydrin and ascorbic acid

期刊论文
摘要:
Two simple and sensitive spectrophotometric methods are described for the determination of lisinopri...
doi:
10.1590/S0103-50532005000600018
作 者:
Aligarh Muslim Unive...
作者机构:
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期刊标题:
Journal of the Brazilian Chemical Society

Simultaneous monitoring of toxic metals on white poplar (populus) by SWASV

期刊论文
摘要:
Square wave anodic stripping voltammetry (SWASV) was applied to the simultaneous determination of tr...
doi:
10.1590/S0103-50532005000700028
作 者:
Instituto Superior d...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Calorimetric study of the antibacterial activity of sodium n-alkylsulfates on the metabolism of Chromobacterium violaceum

期刊论文
摘要:
The bioactivity of a series of sodium n-alkylsulfates (C6-C10 and C12) was studied with flow calorim...
doi:
10.1590/S0103-50532005000600030
作 者:
Universidade Estadua...
作者机构:
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期刊标题:
Journal of the Brazilian Chemical Society

New pyrone and quinoline alkaloid from Almeidea rubra and their trypanocidal activity

期刊论文
摘要:
The investigation of the ethyl acetate fraction of methanol extract from leaves of Almeidea rubra A....
doi:
10.1590/S0103-50532005000300018
作 者:
Albuquerque, Sérgio ...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society

Study on the determination of lead, cadmium, mercury, nickel and zinc by a rapid column high-performance liquid chromatography

期刊论文
摘要:
A new method for the simultaneous determination of five heavy metal ions in water, food and human ha...
doi:
10.1590/S0103-50532005000700011
作 者:
Yang, Guangyu;Hu, Qi...
作者机构:
期刊编号:
期刊标题:
Journal of the Brazilian Chemical Society
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