نتایج جستجو برای: protocatechuic acid

تعداد نتایج: 747494  

2013
İbrahim Kıvrak Şeyda Kıvrak Mansur Harmandar Yunus Çetintaş

In this study, phenolic content of Pinus brutia’s bark was examined using an ultra-performance liquid chromatography tandem mass spectrometry with electrospray ionization source (UPLC-ESI-MS/MS) working in multiple reaction monitoring mode. Ultrasonic extraction method with 50% ethanol solution was used for the extraction of bark. The bark of Pinus brutia consisted of 15 compounds: gallic acid,...

Journal: :Bioinorganic Chemistry and Applications 2008
Kimon Zavitsanos Konstantinos Tampouris Athinoula L. Petrou

The interactions between chromium(III) and 3,4-dihydroxybenzoic acid (3,4-DHBA) were studied resulting in the formation of oxygen-bonded complexes upon substitution of water molecules in the chromium(III) coordination sphere. The experimental results show that the reaction takes place in at least three stages, involving various intermediates. The first stage was found to be linearly dependent o...

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