Ion chromatographic determination of sulfide and cyanide in real matrices by using pulsed amperometric detection on a silver electrode

Giuriati, Caterina; Cavalli, Silvano; Gorni, A.; Badocco, Denis; Pastore, Paolo

doi:10.1016/j.chroma.2003.10.001

Cited by 127 publications

(52 citation statements)

References 32 publications

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“…2 It is the product of adenosine triphosphate (ATP) hydrolysis under cellular conditions. PPi concentration provides critical information for some important 4 electrochemical method, 27 ion chromatography, 28 polarographic sensors, 29 and gas chromatography. 30 But these assays often result in sample destruction and/or are limited to extracellular detection.…”

Section: Introductionmentioning

confidence: 99%

Pyridine–Biquinoline–Metal Complexes for Sensing Pyrophosphate and Hydrogen Sulfide in Aqueous Buffer and in Cells

et al. 2015

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Herein, we report a new pyridine-biquinoline-derivative fluorophore L for effectively sensing pyrophosphate (PPi) and monohydrogen sulfide (HS(-)) in aqueous buffer and in living cells. L could selectively coordinate with metal ions (M(n+)) in Groups IB and IIB to form L-M(n+) complexes with 1:1 stoichiometry, resulting in fluorescence quenching via photoinduced electron transfer (PET) mechanism. L-Zn(2+) complex was applied to competitively coordinate with PPi to form a new "ate"-type complex, turning on the fluorescence by a 21-fold-increase. The limit of detection (LOD) of this assay for PPi detection in aqueous buffer is 0.85 μM. L-Cu(2+) complex was applied for highly selective detection of HS(-) with an excellent sensitivity by 25-fold decomplexation-induced fluorescence increase. LOD of L-Cu(2+) complex for HS(-) detection in aqueous buffer is 2.24 μM. With the in vitro data obtained, we successfully applied these two complexes for sequential imaging Zn(2+) and PPi, Cu(2+) and HS(-) in living cells, respectively. Since PPi and HS(-) occur in vascular calcification in positive correlation, our multifunctional probe L might help doctors to more precisely diagnose this disease in vivo in the future. For example, we could use radioactive tracer L-(64)Cu for qualitative and quantitative positron emission tomography/computed tomography (PET/CT) imaging of HS(-) in vivo.

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Section: Introductionmentioning

confidence: 99%

Pyridine–Biquinoline–Metal Complexes for Sensing Pyrophosphate and Hydrogen Sulfide in Aqueous Buffer and in Cells

et al. 2015

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“…1,2 Most of the determination procedures, including the widely used methylene blue method, 3−5 face problems, most of which are related with the necessity of reaching a high sensitivity free of interferences. Ion chromatography using special separation resins and suppressor column coupled to a number of detection systems (e.g., conductometric, 6 electrochemical, 7,8 ion-selective electrode, 9 photometric, 10 ICP-MS 11 ) has been a commonly used tool for separation and detection of sulfide ions from complex matrices. Sometimes also derivatization 12,13 or post-column 14 reactions have been applied.…”

Section: Introductionmentioning

confidence: 99%

2,4,6-Triphenylpyrylium Cations as Derivatization Reagents for Sulfide Ions Detection in TLC

Zakrzewski

Ciesielski

Ulanowska

et al. 2009

Phosphorus, Sulfur, and Silicon and the Related Elements

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We report a study of the use of 2,4,6-triphenylpyrylium salts as derivatization reagents for the simple detection of sulfide ions in thin-layer chromatography (TLC). The principle of the presented method is based on the transformation of 2,4,6-triphenylpyrylium compounds into the parent thiopyrylium derivatives upon reaction with sulfide ions. The derivatization reaction took place in a tube or directly on the TLC plate before the developing step. As a consequence of the reaction of sulfide with the 2,4,6-triphenylpyrylium derivatives, the spots became visible as yellow or blue spots on a colorless background. Spots were stable for several hours. The detection limit is at pmol per spot level and depends on the triphenylpyrylium salt used and on the detection method.

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“…While cyanide compounds are widely used in industry, metal plating is responsible for most of the cyanide wastes causing stream pollution [1][2][3][4]. Various instrumental techniques have been suggested for determining cyanides, including the use of potentiometric sensors [5][6][7][8][9][10], chromatography [11,12], spectrofluorimetry [13], indirect atomic absorption spectrometry [14] and spectrophotometry [15][16][17][18][19][20][21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

A novel spectrophotometric method for determination of cyanide using cobalt (II) phthalocyanine tetracarboxylate as a chromogen

Elnemma

Abd-Rabboh

Hassan

2010

International Journal of Environmental Analytical Chemistry

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Ion chromatographic determination of sulfide and cyanide in real matrices by using pulsed amperometric detection on a silver electrode

Cited by 127 publications

References 32 publications

Pyridine–Biquinoline–Metal Complexes for Sensing Pyrophosphate and Hydrogen Sulfide in Aqueous Buffer and in Cells

Pyridine–Biquinoline–Metal Complexes for Sensing Pyrophosphate and Hydrogen Sulfide in Aqueous Buffer and in Cells

2,4,6-Triphenylpyrylium Cations as Derivatization Reagents for Sulfide Ions Detection in TLC

A novel spectrophotometric method for determination of cyanide using cobalt (II) phthalocyanine tetracarboxylate as a chromogen

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