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Preparative separation of flavonoids from the medicinal plant Davilla elliptica St. Hill. by high-speed counter-current chromatography
(Sociedade Brasileira de Química, 2006-10-01)
High-speed counter-current chromatography (HSCCC) is a major tool for the fast separation of natural products from plants. It was used for the preparative isolation of the flavonoid monoglucosides present in the aerial ...
Pharmacokinetic Study of Nobiletin and Tangeretin in Rat Serum by High-Performance Liquid Chromatography-Electrospray Ionization-Mass Spectrometry
(Amer Chemical Soc, 2011-01-12)
Nobiletin (NOB) and tangeretin (TAN), two of the main polymethoxylated flavones (PMFs) in citrus, influence a number of key biological pathways in mammalian cells. Although the impacts of NOB and TAN on glucose homeostasis ...
Avaliação de Hb A2 e Hb F em doadores de sangue de região malarígena da Amazônia Oriental brasileira por HPLC
(Associação Brasileira de Hematologia e Hemoterapia e daSociedade Brasileira de Transplante de Medula Óssea, 2003-01-01)
In malaria endemic regions of Africa, resistance to infection by Plasmodium has been observed in under 6-month-old children, when there are higher fetal hemoglobin (Hb F) levels. Research performed in the São José do Rio ...
INTERACTION of ENANTIOMERS of LYSYL-7-AZATRYPTOPHYL-LYSINE WITH ACIDIC PHOSPHOLIPID-VESICLES - A FLUORESCENCE STUDY
(Soc Applied Spectroscopy, 1995-01-01)
A tripeptide containing a single 7-azatryptophan (7AW) residue was synthesized with the use of racemic 7AW and purified by high-performance liquid chromatography (HPLC), the peptide NH2-lysyl-7-aza-tryptophyl-lysine (K7AWK) ...
Estudo da adsorção/dessorção de 2,4-D em solos usando técnica cromatográfica
(Editora Unesp, 2002-01-01)
Este trabalho estudou a adsorção e a desorção do herbicida ácido 2,4-Diclorofenoxiacético (2,4-D) em solo da região de Urbano Santos - MA. A região possui campos de cultivo de eucaliptos para obtenção de celulose. Para a ...
Leachability of degradation products from hard chairside reline resins in artificial saliva: effect of water-bath post-polymerization treatment
(Wiley-Blackwell, 2012-01-15)
The effect of a post-polymerization treatment on the leaching of methacrylic acid (MA) and benzoic acid (BA) from the reline resins [Kooliner (K), New Truliner (N), Ufi Gel hard (U), and Tokuso Rebase Fast (T)] was evaluated. ...
On line extraction and separation of bendiocarb, methomyl, methylparathion, and pentachlorophenol pesticides from raw milk
(Marcel Dekker Inc, 1998-01-01)
A high performance liquid chromatography (HPLC) method for extraction and determination of pesticides from raw milk was developed. The method involves direct injection of raw milk samples on a bovine serum albumin-dimeth ...
Determination of acetaldehyde in fuel ethanol by high-performance liquid chromatography with electrochemical detection
(Japan Soc Analytical Chemistry, 2005-04-01)
The cyclic voltammetric behavior of acetaldehyde and the derivatized product with 2,4-dinitrophenylhydrazine (DNPHi) has been studied at a glassy carbon electrode. This study was used to optimize the best experimental ...