2003
DOI: 10.1007/s00216-003-1966-2
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Chromatographic behavior of cadmium in an ion-pair reversed-phase micro HPLC system and its application to the determination of bio-available cadmium in soil samples

Abstract: A novel reversed phase ion-pair micro HPLC system with on-line fluorescence detection has been developed systematically and studied for the determination of cadmium in its bio-available fractions of soil samples. In this system, a micro ODS column of 1.0 mm i.d.x150 mm length and a mobile phase containing 6 mmol L(-1) 8-hydroxyquinoline 5-sulphonic acid (HQS), 3 mmol L(-1) cetyltrimethylammonium bromide (CTMABr), 10 mmol L(-1) acetic acid-acetate buffer (pH 5.1) as well as 50% acetonitrile at 50 microL min(-1)… Show more

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Cited by 6 publications
(1 citation statement)
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References 27 publications
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“…The concentration of free metal ions depends on the total concentration of dissolved metal, as well as the type and concentration of the concurrent ligands in the environment [19] . According to the complex stability constants between Cd and EDTA and/or Cys, one can calculate the concentration of Cd 2+ under different concentrations of EDTA and Cys [20] . The distribution coefficients and concentrations of free Cd 2+ under different molar ratios of EDTA and/or Cys to Cd, with the Cd T at 500 μg/mL or 10 mg/L, are listed in Table 1.…”
Section: Growth Status Of P Tricornutum Under CD Stressmentioning
confidence: 99%
“…The concentration of free metal ions depends on the total concentration of dissolved metal, as well as the type and concentration of the concurrent ligands in the environment [19] . According to the complex stability constants between Cd and EDTA and/or Cys, one can calculate the concentration of Cd 2+ under different concentrations of EDTA and Cys [20] . The distribution coefficients and concentrations of free Cd 2+ under different molar ratios of EDTA and/or Cys to Cd, with the Cd T at 500 μg/mL or 10 mg/L, are listed in Table 1.…”
Section: Growth Status Of P Tricornutum Under CD Stressmentioning
confidence: 99%