1998
DOI: 10.1016/s0960-894x(98)00152-8
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Complexation of okadaic acid : A preliminary study

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Cited by 6 publications
(12 citation statements)
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“…In addition, signals from H-7, H-12, H-14, H-15, H-23 and Me-41 clearly changed their chemical shifts upon addition of EDTA (Figure 1). Following this opening observation, a series of experiments were carried out in order to identify the ion included in this complex [20]. The experiments consisted of the treatment of OA samples with different metal ions such as Li + , Na + , K + , Ca 2+ and Mg 2+ .…”
Section: Dimerization Of Okadaic Acid Overviewmentioning
confidence: 99%
“…In addition, signals from H-7, H-12, H-14, H-15, H-23 and Me-41 clearly changed their chemical shifts upon addition of EDTA (Figure 1). Following this opening observation, a series of experiments were carried out in order to identify the ion included in this complex [20]. The experiments consisted of the treatment of OA samples with different metal ions such as Li + , Na + , K + , Ca 2+ and Mg 2+ .…”
Section: Dimerization Of Okadaic Acid Overviewmentioning
confidence: 99%
“…For example, pahayokolide A, one of the recently isolated compounds, and brevetoxin (PbTx-2 used in this study) were studied for the first time for their complexation with metals. Although microcytins have been studied by a few research groups (Humble et al 1997;Yan et al 2000;Saito et al 2008;Norte et al 1998), complexation of microcystin-YR with metal ions has never been previously studied. In addition to metal ions, metalloid, such as anion HAsO 4 2-was also included in the current study.…”
Section: Discussionmentioning
confidence: 99%
“…The microcystin-metal complexes were observed as both singly charged and doubly charged ion peaks (Saito et al 2008). Norte et al (1998) carried out a study on complexation between okadaic acid and univalent and divalent metal ions utilizing nuclear magnetic resonance (NMR). A summary of previous studies on the complexation of metals and toxins is shown in Table 1.…”
Section: The Complexation Of Algal Toxins With Metalsmentioning
confidence: 99%
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