Sequestration of Aluminium(III) by different natural and synthetic organic and inorganic ligands in aqueous solution

Cardiano, Paola; Cigala, Rosalia Maria; Crea, Francesco; Giacobello, Fausta; Giuffrè, Ottavia; Irto, Anna; Lando, Gabriele; Sammartano, Silvio

doi:10.1016/j.chemosphere.2017.08.015

Cited by 28 publications

(15 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They assumed that the resolution of the two chromatographic peaks of Al-citrate and Al-transferrin obtained in HPLC analysis became weak when the flow rate of mobile phase was higher than 0.7 mL min −1 . Further confirmation may come from Cardiano et al (2017), who proved that, together with the increasing molecular weight, the number of charges grows and, as a result, the interaction with metal cations also increases [21]. Additionally, the presence of the -OH group increased the possibility of interaction between Al 3+ .…”

Section: Al/citratementioning

confidence: 85%

See 1 more Smart Citation

Chemical Speciation of Aluminum in Wine by LC–ICP–MS

2020

View full text Add to dashboard Cite

Aluminum is very common in the natural environment and in everyday human life. We are living in the “aluminum age.” Its average daily intake should not exceed a few mg/day. Unfortunately, despite the growing number of alarming data about the toxicity of this element, human exposure to aluminum is constantly increasing. The toxicity and bioavailability of aluminum depends mainly on the form in which it occurs. The main variables conditioning the form are the concentration, the type, the molar ratio of aluminum to ligand, the pH value, and the temperature. This research presents a new method for speciation analysis of both inorganic and organic aluminum complexes in model solutions by LC–ICP–MS. Different solutions with variable pH values and different Al/ligand molar ratios (fluorides and several organic ligands, e.g., citrates and oxalates ions) were used. The chromatographic separation process was carried out based on isocratic and gradient elution, using a cation exchange analytical column. All determinations have been confirmed based on chemical equilibrium modeling programs. The new developed method was successfully applied for the first time in speciation analysis of real samples: white and red wine.

show abstract

Section: Al/citratementioning

confidence: 85%

“…Aluminum can also bond with organic substances-fulvic, humic, malic, tartaric acids, sugars, etc. [21]. It should be mentioned that malic and citrate acids are interesting for aluminum in plants, due to the specific form in which they occur and are toxic in different conditions.…”

Section: Introductionmentioning

confidence: 99%

Chemical Speciation of Aluminum in Wine by LC–ICP–MS

2020

View full text Add to dashboard Cite

show abstract

“…The results of the experiment may be attributable to possible generation of strong complexes due to fluoride ion binding by the components of the test solution, particularly by AlF 3 salts (K inst [AlF 6 ] 3-= 2,1⋅10 -21 ) [31], rather than to formation of non-ionized fluorine compounds due to acidic pH value (e.g., the pH shift of the Lacalut Sensitive ® solution resulted in insignificant changes). Thus, a study of fluoride ion activity in the Lacalut Fresh ® solution suggests that fluoride ions will not be uptaken by tooth tissue and may even be washed away from it; thus, this supplement will have no effect when applied according to the directions for use of the preparation (5-7 drops/100 ml water).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of free and total fluoride concentration in mouthwashes via measurement with ion-selective electrode

Reshetnyak

Нестерова

Admakin

et al. 2019

Preprint

View full text Add to dashboard Cite

Background: The aim of this study was to compare free fluoride concentration and total fluoride concentration in mouthwashes. Methods: Fluorine-containing mouthwashes from various companies and manufacturers (Colgate Total Plax Classic Mint®, Colgate-Palmolive, New York, USA; Colgate Total Plax Gentle Mint®, Colgate-Palmolive, New York, USA; Colgate Total Plax Fresh Mint®, Colgate-Palmolive, New York, USA; Oral B Advantage®, Procter&Gamble, Cincinnati, USA; Reach Fresh Mint®, Johnson&Johnson, New Brunswick, USA; Foramen®, Laboratorios Foramen, Guarnizo, Spain; Lacalut Sensitive®, Dr. THEISS, Homburg, Germany; Sensodyne®, GlaxoSmithKline, London, UK; Vesna F®, Vita, Saint Petersburg, Russia; Lacalut Fresh®, Dr. THEISS, Homburg, Germany) were selected as study objects. Fluoride measurements were carried out using the fluoride selective electrode. Results: Free fluoride:total fluoride ratio was more than 80% for six samples (Colgate Total Plax Gentle Mint® - 88%, Colgate Total Plax Fresh Mint® - 99%, Oral B Advantage® - 92%, Reach Fresh Mint® - 92% and 89% for the mouthwash of another batch, Lacalut Sensitive® - 94%) and less than 63% for three samples (Colgate Total Plax Classic Mint® - 56%, Foramen® - 62%, Vesna F® - 61%). Two samples had more than 70% and less than 80% of unbound fluoride, respectively (Sensodyne® - 77%, another batch of Oral B Advantage® mouthwash - 74%). Rinse containing sodium monofluorophosphate (Na2PO3F) (Vesna F®) had more than 50% of free fluoride, while the rinse containing amine fluoride (AmF) (Lacalut Sensitive®) had 94%. The difference in the free fluoride:total fluoride ratio can be explained by binding of fluoride ions by components contained in mouthwashes, such as coloring agents and polymeric compounds. The lowest concentration of free fluoride ions (0.000093 mol/L) was observed for aluminum fluoride (AlF3) rinse (Lacalut Fresh®), while the total fluoride amount was not determined due to possible generation of strong fluoride complexes. This implies that fluoride ions will not be uptaken by tooth tissue and may even be washed away from it, compromising the efficacy of mouthwashes. Conclusions: The differences in free fluoride: total fluoride ratio between analyzed mouthwashes reveal a need to develop a method for evaluation of free fluorides in mouthwashes for proper updating of national and international guidelines.

show abstract

“…Interestingly, the pH value of the solution dramatically changed: from 4,2 to 6.5 (the pH value of the standard solution of NaF is 7.7). The results of the experiment may be attributable to possible generation of strong complexes due to fluoride ion binding by the components of the test solution, particularly by exafluoroaluminate (AlF 3) salts (K inst [AlF 6 ] 3− = 2.1·10 − 21 ) [31], rather than to formation of non-ionized fluorine compounds due to acidic pH value (e.g., the pH shift of the Lacalut Sensitive® solution resulted in insignificant changes). Thus, a study of fluoride ion activity in the Lacalut Fresh® solution suggests that fluoride ions will not be uptaken by tooth tissue and may even be washed away from it; thus, this supplement will have no effect when applied according to the directions for use of the preparation (5–7 drops/100 ml water).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of free and total fluoride concentration in mouthwashes via measurement with ion-selective electrode

et al. 2019

View full text Add to dashboard Cite

BackgroundThe aim of this study was to compare free fluoride concentration and total fluoride concentration in mouthwashes.MethodsFluorine-containing mouthwashes from various companies and manufacturers (Colgate Total Plax Classic Mint®, Colgate-Palmolive, New York, USA; Colgate Total Plax Gentle Mint®, Colgate-Palmolive, New York, USA; Colgate Total Plax Fresh Mint®, Colgate-Palmolive, New York, USA; Oral B Advantage®, Procter&Gamble, Cincinnati, USA; Reach Fresh Mint®, Johnson&Johnson, New Brunswick, USA; Foramen®, Laboratorios Foramen, Guarnizo, Spain; Lacalut Sensitive®, Dr. THEISS, Homburg, Germany; Sensodyne®, GlaxoSmithKline, London, UK; Vesna F®, Vita, Saint Petersburg, Russia; Lacalut Fresh®, Dr. THEISS, Homburg, Germany) were selected as study objects. Fluoride measurements were carried out using the fluoride selective electrode.ResultsFree fluoride:total fluoride ratio was more than 80% for six samples (Colgate Total Plax Gentle Mint® - 88%, Colgate Total Plax Fresh Mint® - 99%, Oral B Advantage® - 92%, Reach Fresh Mint® - 92 and 89% for the mouthwash of another batch, Lacalut Sensitive® - 94%) and less than 63% for three samples (Colgate Total Plax Classic Mint® - 56%, Foramen® - 62%, Vesna F® - 61%). Two samples had more than 70% and less than 80% of unbound fluoride, respectively (Sensodyne® - 77%, another batch of Oral B Advantage® mouthwash - 74%). Rinse containing sodium monofluorophosphate (Na2PO3F) (Vesna F®) had more than 50% of free fluoride, while the rinse containing amine fluoride (AmF) (Lacalut Sensitive®) had 94%. The difference in the free fluoride:total fluoride ratio can be explained by binding of fluoride ions by components contained in mouthwashes, such as coloring agents and polymeric compounds. The lowest concentration of free fluoride ions (0.000093 mol/L) was observed for aluminum fluoride (AlF3) rinse (Lacalut Fresh®), while the total fluoride amount was not determined due to possible generation of strong fluoride complexes. This implies that fluoride ions will not be uptaken by tooth tissue and may even be washed away from it, compromising the efficacy of mouthwashes.ConclusionsThe differences in free fluoride: total fluoride ratio between analyzed mouthwashes reveal a need to develop a method for evaluation of free fluorides in mouthwashes for proper updating of national and international guidelines.

show abstract

Sequestration of Aluminium(III) by different natural and synthetic organic and inorganic ligands in aqueous solution

Cited by 28 publications

References 56 publications

Chemical Speciation of Aluminum in Wine by LC–ICP–MS

Chemical Speciation of Aluminum in Wine by LC–ICP–MS

Evaluation of free and total fluoride concentration in mouthwashes via measurement with ion-selective electrode

Evaluation of free and total fluoride concentration in mouthwashes via measurement with ion-selective electrode

Contact Info

Product

Resources

About