Validation, uncertainty estimation and application of a sector field ICP MS-based method for As, Cd and Pb in cow’s milk and infant formulas

Frazzoli, Chiara; Bocca, Beatrice

doi:10.1007/s00604-007-0935-4

Cited by 14 publications

(2 citation statements)

References 33 publications

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“…Samples available in the Italian market contained very low concentrations of these elements. Working from the same Department, Frazzoli and Bocca measured As, Cd and Pb in a powdered milk CRM, again using ICP-SF-MS. 30 The method validation data were used to calculate the measurement uncertainties for these elements. This procedure was applied to analyses of cow's milk and infant formulas.…”

Section: Reviewsmentioning

confidence: 99%

“…164 The mean total content for human milk was 144.0 AE 93.2 mg kg À1 whereas infant formula was only 53.3 AE 19.5 mg kg À1 in which the whey fraction contained 80-90% of the I, fat contained 2% and casein 5 to 10% for both types of milk. Several other authors have developed and validated new methods for the analysis of human milk or infant formula: using slurry injection ETAAS 176 or microwave digestion prior to ICP-MS 221 or ICP-SF-MS. 30,222 7.2.3 Milk and dairy products. Processed cheese was used as a vector to assess the oral bioavailability of Al in food using 26 Al-labelled sodium aluminium phosphate (basic SALP) added at 1.5% and 3% to the cheese administered to rats; it was found to be similar to that in drinking water.…”

Section: Human Milk and Infant Formulamentioning

confidence: 99%

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Atomic Spectrometry Update. Clinical and biological materials, foods and beverages

Taylor

Branch

Day³

et al. 2009

J. Anal. At. Spectrom.

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Section: Reviewsmentioning

confidence: 99%

Section: Human Milk and Infant Formulamentioning

confidence: 99%

Atomic Spectrometry Update. Clinical and biological materials, foods and beverages

Taylor

Branch

Day³

et al. 2009

J. Anal. At. Spectrom.

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Current literature in mass spectrometry

2008

J. Mass Spectrom.

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In order to keep subscribers up‐to‐date with the latest developments in their field, John Wiley & Sons are providing a current awareness service in each issue of the journal. The bibliography contains newly published material in the field of mass spectrometry. Each bibliography is divided into 11 sections: 1 Reviews; 2 Instrumental Techniques & Methods; 3 Gas Phase Ion Chemistry; 4 Biology/Biochemistry: Amino Acids, Peptides & Proteins; Carbohydrates; Lipids; Nucleic Acids; 5 Pharmacology/Toxicology; 6 Natural Products; 7 Analysis of Organic Compounds; 8 Analysis of Inorganics/Organometallics; 9 Surface Analysis; 10 Environmental Analysis; 11 Elemental Analysis. Within each section, articles are listed in alphabetical order with respect to author (4 Weeks journals ‐ Search completed at 24th. Sept. 2008)

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Design of a novel electrochemical biosensor based on intramolecular G-quadruplex DNA for selective determination of lead(II) ions

2017

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An electrochemical DNA biosensor based on a G-quadruplex (G4) for the sensitive determination of Pb was reported using a carbon paste electrode (CPE) or a multi-walled carbon nanotube paste electrode (MWCNTPE) as working electrodes, ethyl green (EG) as a new G4 intercalator, and a single-stranded nucleic acid sequence rich in guanine (G) as DNA probe. Electrochemical determination of Pb relied on probe structural changes from single - stranded to the stabilized intramolecular G4 in the presence of Pb, which caused a change in the current of the EG reduction peak due to the intercalation of EG into the G4 structure. The change in the reduction peak of EG before and after its intercalation into the stabilized G4 (∆I) had a linear correlation to the concentration of Pb ions. The linear ranges of 4.0 × 10-5.0 × 10 M and 2 × 10-1 × 1 M with a detection limit (LOD) of 1.04 × 10 M were obtained using CPE, while improved linear ranges of 4.0 × 10-1.0 × 10 M and 2 × 10-1 × 10 M with a lower LOD of 2.64 × 10 M were achieved using the MWCNTPE biosensor. The biosensors exhibited satisfactory results in terms of selectivity and practical applicability in the analysis of real samples. Graphical abstract The principle of the electrochemical sensing of Pb based on intramolecular G-quadruplex using EG.

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Validation, uncertainty estimation and application of a sector field ICP MS-based method for As, Cd and Pb in cow’s milk and infant formulas

Cited by 14 publications

References 33 publications

Atomic Spectrometry Update. Clinical and biological materials, foods and beverages

Atomic Spectrometry Update. Clinical and biological materials, foods and beverages

Current literature in mass spectrometry

Design of a novel electrochemical biosensor based on intramolecular G-quadruplex DNA for selective determination of lead(II) ions

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