Determination of cobalt(II) in parts per billion range by fluorescence extinction

Zamochnick, S. B.; Rechnitz, G. A.

doi:10.1007/bf00493598

Cited by 15 publications

(8 citation statements)

References 5 publications

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“…192 5.1 Fluorescent sensors for cobalt ''Turn-off'' fluorescent sensors for cobalt. Zamochnick and Rechnitz 193 developed a fluorescence extinction method for the determination of Co 2+ in the ppb range, which is based on the reaction between Co 2+ and the fluorescent aluminium-Superchrome Blue Black Extra (Co-1) complex. The fluorescence intensity of the complex decreases sharply in the presence of Co 2+ , the decrease being linear over a concentration range of 0.001 mg to 0.02 mg ml À1 of final solution.…”

Section: Cobaltmentioning

confidence: 99%

Fluorescent, MRI, and colorimetric chemical sensors for the first-row d-block metal ions

et al. 2015

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Transition metals (d-blocks) are recognized as playing critical roles in biology, and they most often act as cofactors in diverse enzymes; however, improper regulation of transition metal stores is also connected to serious disorders. Therefore, the monitoring and imaging of transition metals are significant for biological research as well as clinical diagnosis. In this article, efforts have been made to review the chemical sensors that have been developed for the detection of the first-row d-block metals (except Cu and Zn): Cr, Mn, Fe, Co, and Ni. We focus on the development of fluorescent sensors (fall into three classes: "turn-off", "turn-on", and ratiometric), colorimetric sensors, and responsive MRI contrast agents for these transition metals (242 references). Future work will be likely to fill in the blanks: (1) sensors for Sc, Ti, and V; (2) MRI sensors for Cr, Mn, Co, Ni; (3) ratiometric fluorescent sensors for Cr(6+), Mn(2+), and Ni(2+), explore new ways of sensing Fe(3+) or Cr(3+) without the proton interference, as well as extend applications of MRI sensors to living systems.

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Section: Cobaltmentioning

confidence: 99%

Fluorescent, MRI, and colorimetric chemical sensors for the first-row d-block metal ions

et al. 2015

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“…A complete library of customer-proven program tapes is available for numerous spectral data-processing functions, including: methods for paramagnetic ions involve static fluorescence quenching (2,7,25,30). Excited State Ionization.…”

Section: Fluorescencementioning

confidence: 99%

Some Aspects of Fluorescence and Phosphorescence Analysis

Hercules¹

1966

Anal. Chem.

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“…Very few works on fluorimetric determination of cobalt (II) have been reported in the literature. Review on previous works reveals that these are low sensitive, unselective and encountered with high interferences [5][6][7][8][9][10][11][12][13]. Another quenchofluorimetric method for Co (II) determination was reported from this laboratory by Pal and Banerjee [14] using bathophenanthroline in 50% ethanolic medium.…”

Section: Introductionmentioning

confidence: 99%

Quenchofluorimetric Determination of Cobalt (II) At Ultra trace Levels Using Bathophenanthrolinedisulphonate

Pal¹,

Singh²

2014

IOSRJAC

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Determination of cobalt(II) in parts per billion range by fluorescence extinction

Cited by 15 publications

References 5 publications

Fluorescent, MRI, and colorimetric chemical sensors for the first-row d-block metal ions

Fluorescent, MRI, and colorimetric chemical sensors for the first-row d-block metal ions

Some Aspects of Fluorescence and Phosphorescence Analysis

Quenchofluorimetric Determination of Cobalt (II) At Ultra trace Levels Using Bathophenanthrolinedisulphonate

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