The extraction and speciation of arsenic in rice flour by HPLC–ICP-MS

Narukawa, Tomohiro; Inagaki, Kenji; Kuroiwa, Takayoshi; Chiba, Koichi

doi:10.1016/j.talanta.2008.07.005

Cited by 107 publications

(77 citation statements)

References 37 publications

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“…Since the toxicity of As depends upon the chemical species, it is important to determine which chemical species are present in a foodstuff as well as the total concentration of the element. [18][19][20][21][22][23][24][25][26][27][28][29] Although a limited number of studies have investigated the changes in As species that occur in rice fields and their dependence on soil conditions, 13,14 there is a lack of information on the As species in rice flour.…”

Section: Introductionmentioning

confidence: 99%

Determination of Sixteen Elements and Arsenic Species in Brown, Polished and Milled Rice

et al. 2014

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The concentrations of 16 elements in 10 rice flour samples and the distribution of the elements in the rice grains from which the flour were made were determined by ICP-MS and ICP-OES after microwave-assisted digestion of the samples. Arsenic speciation analysis was carried out by HPLC-ICP-MS following heat-assisted extraction of the sample. The concentrations of inorganic As (As(III) and As(V)), monomethylarsonic acid (MMAA) and dimethylarsinic acid (DMAA) and their distribution in the rice grains were determined. Portions of the brown rice were polished/milled to different degrees to yield milled off samples and polished rice samples. All samples were powdered and analyzed for 16 elements and for As species. The recoveries and mass balances for all elements in all samples showed good agreements with the starting materials. As(III), As(V), MMAA and DMAA were detected, and the sums of the concentrations of all species in the extract were 86 -105% of the total As concentration in each case.

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Section: Introductionmentioning

confidence: 99%

Determination of Sixteen Elements and Arsenic Species in Brown, Polished and Milled Rice

et al. 2014

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“…The levels of arsenic in fish, shellfish and seaweed are higher than those found in cereals, vegetables and meats, but this element is mostly present in its organic form which has low toxicity (Narukawa, Inagaki, Kuroiwa, & Chiba, 2008;Delgado-Andrade, Navarro, López, & López, 2003).…”

Section: Introductionmentioning

confidence: 99%

Survey of total mercury and arsenic content in infant cereals marketed in Spain and estimated dietary intake

Hernández-Martínez

Navarro-Blasco

2013

Food Control

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Abstract:Due to the fact that infants and children are especially sensitive to mercury and arsenic exposure, predominantly through diet, a strict control of the most widely consumed infant foods, especially infant cereals, is of paramount importance. Levels of both total mercury and arsenic in 91 different infant cereals from ten different manufacturers in Spain were determined by flow injection adapted to cold vapor and hydride generation atomic absorption spectrometry, respectively. Cereals were assessed in terms of the different types, the predominating cereal in the formulation, the added ingredients, and whether the cereal was organically or conventionally obtained. In general, the content of toxic elements (median (Q 1 ;Q 3 )) found in infant cereals based on conventionally obtained raw materials (n=74, Hg: 2.11 (0.42;4.58), As: 21.0 (9.4;50.9) µg·Kg ). Mercury content in infant cereals shows the higher values in those formulations with ingredients susceptible to particulate contamination such as gluten-free or cacao-based cereals. The highest arsenic content appears in the rice-based cereals. The mercury and the inorganic arsenic dietary intakes for infants fed on the infant cereals studied were assessed, taking into account the different stages of growth. Organic infant cereals based on cocoa showed the highest risk intakes of mercury, very close to exceeding the intake reference. Just the opposite, 95% of the organically produced infant cereals and 70% of the conventional gluten-free infant cereals showed an inadmissible risk of arsenic intake. Thus, it seems prudent to call for continued efforts in standardizing routine quality control and in reducing arsenic levels in infant cereals; in addition it is essential that relevant legislation be established and regulated by EC regarding these two toxic elements.

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“…1,2 An inductively coupled plasma mass spectrometer (ICP-MS) is a trace-element detection method with unique analytical capabilities. Several procedures based on liquid chromatography (LC), [1][2][3][4][5][6][7][8][9][10] gas chromatography (GC) 11 and capillary electrophoresis (CE) [12][13][14][15][16] coupled with ICP-MS have been reported for selenium and arsenic speciation analysis. Coupling of LC to ICP-MS gained much attention due to its easiness of sample preparation, simplicity of the interface to the detector, availability of isotope ratio information and specificity of the signal intensity of the determined element.…”

Section: Introductionmentioning

confidence: 99%

Microwave-assisted Extraction and Ion Chromatography Dynamic Reaction Cell Inductively Coupled Plasma Mass Spectrometry for the Speciation Analysis of Arsenic and Selenium in Cereals

Tsai

Jiang

2011

ANAL. SCI.

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The extraction and speciation of arsenic in rice flour by HPLC–ICP-MS

Cited by 107 publications

References 37 publications

Determination of Sixteen Elements and Arsenic Species in Brown, Polished and Milled Rice

Determination of Sixteen Elements and Arsenic Species in Brown, Polished and Milled Rice

Survey of total mercury and arsenic content in infant cereals marketed in Spain and estimated dietary intake

Microwave-assisted Extraction and Ion Chromatography Dynamic Reaction Cell Inductively Coupled Plasma Mass Spectrometry for the Speciation Analysis of Arsenic and Selenium in Cereals

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