Simultaneous analysis of 21 elements in foodstuffs by ICP-MS after closed-vessel microwave digestion: Method validation

Millour, Sandrine; Noël, Laurent; Kadar, Ali; Chekri, Rachida; Vastel, Christelle; Guérin, Thierry

doi:10.1016/j.jfca.2010.04.002

Cited by 93 publications

(45 citation statements)

References 13 publications

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“…General Table 3 gives the limits of quantification previously estimated (Millour et al, 2011) and censored data for all elements. Tables 4 and 5 give the results found in fish and in other seafood products, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…The ICP-MS methods have already been fully validated (including participation in proficiency tests) for the simultaneous analysis of cadmium, lead, mercury, arsenic (in standard mode), chromium, iron and selenium (in CCT mode) content in foodstuffs of animal origin (Dufailly, Noël, & Guérin, 2006;Noël et al, 2005Noël et al, , 2009. The performance criteria of the method for all other elements have also been estimated and all proficiency tests were satisfactory for fish and seafood samples (Millour et al, 2011;Noël et al, 2009 …”

Section: Methodsmentioning

confidence: 99%

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Determination of 20 trace elements in fish and other seafood from the French market

et al. 2011

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Determination of 20 trace elements in fish and other seafood from the French market

et al. 2011

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“…After pressure digestion of the samples, inductively coupled plasma-mass spectrometry (ICP-MS) is increasingly being used even if its cost is slightly higher, due to its multielement capacity, sensitivity (LOQ of about 10 μg/kg) and its greater selectivity (Nardi et al, 2009;Rose et al, 2010;Millour et al, 2011a). To limit the memory effects of mercury in the sample delivery system, which may influence the results of samples analysed after measurement of high concentrations and need prolonged washout times, gold chloride is added to the internal standard solution to stabilise mercury in the solution.…”

Section: For Total Mercury Analysismentioning

confidence: 99%

Scientific Opinion on the risk for public health related to the presence of mercury and methylmercury in food

2012

EFS2

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EFSA was asked by the European Commission to consider new developments regarding inorganic mercury and methylmercury toxicity and evaluate whether the Joint FAO/WHO Expert Committee on Food Additives (JECFA) provisional tolerable weekly intakes for methylmercury of 1.6 µg/kg body weight (b.w.) and of 4 µg/kg b.w. for inorganic mercury were still appropriate. In line with JECFA, the CONTAM Panel established a tolerable weekly intake (TWI) for inorganic mercury of 4 µg/kg b.w., expressed as mercury. For methylmercury, new developments in epidemiological studies from the Seychelles Child Developmental Study Nutrition Cohort have indicated that n-3 long-chain polyunsaturated fatty acids in fish may counteract negative effects from methylmercury exposure. Together with the information that beneficial nutrients in fish may have confounded previous adverse outcomes in child cohort studies from the Faroe Islands, the Panel established a TWI for methylmercury of 1.3 µg/kg b.w., expressed as mercury. The mean dietary exposure across age groups does not exceed the TWI for methylmercury, with the exception of toddlers and other children in some surveys. The 95 th percentile dietary exposure is close to or above the TWI for all age groups. High fish consumers, which might include pregnant women, may exceed the TWI by up to approximately six-fold. Unborn children constitute the most vulnerable group. Biomonitoring data from blood and hair indicate that methylmercury exposure is generally below the TWI in Europe, but higher levels are also observed. Exposure to methylmercury above the TWI is of concern. If measures to reduce methylmercury exposure are considered, the potential beneficial effects of fish consumption should also be taken into account. Dietary inorganic mercury exposure in Europe does not exceed the TWI, but inhalation exposure of elemental mercury from dental amalgam is likely to increase the internal inorganic mercury exposure; thus the TWI might be exceeded. This opinion focuses only on the risks related to dietary inorganic mercury and methylmercury exposure and does not assess the nutritional benefits linked to certain foods (e.g. fish and other seafood).A call for annual collection of chemical contaminant occurrence data in food and feed, including mercury, was issued by EFSA in December 2010. In response, EFSA received 59 820 results on mercury in food from 20 European countries, mainly covering the period from 2004 to 2011. A total number of 59 650 results were described with sufficient detail to be used in the statistical analysis of the respective food groups; 98.2 % of the samples were for total mercury, 1.8 % for methylmercury and three samples for inorganic mercury.All the 20 food groups available at the first level of FoodEx were covered in the current data collection. The food groups 'Fish and other seafood' and 'Meat and meat products' dominated the food product coverage with 36.8 % and 17.6 % respectively. These were followed by 'Grain and grain-based products' at 7.8 % and 'Vegetables an...

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“…Aliquots of $0.150-0.300 g samples were separately weighed in quartz vessels and digested with 3 ml of concentrated nitric acid and 3 ml of ultra pure water prior to analysis by ICP-MS according to a validated and accredited ''in house'' method (Millour et al, 2011).…”

Section: Total Determinationmentioning

confidence: 99%

“…The percentage of bioaccessibility was defined as the proportion of total element available for absorption, and was calculated as X l Xt Â 100 (with X l the fraction of total element released (saliva + gastric juice), and X t the total element concentration). The limits of quantification (LOQ) for the total determination of the nine elements were measured as defined previously (Millour et al, 2011), and then corrected for sample weight (0.100 g of dry mass). The estimated LOQs for Al, V, Mn, Cu, Zn, Se, Cd, Hg and Pb were 1.67, 0.066, 0.066, 0.066, 0.334, 0.334, 0.006, 0.034 and 0.020 mg kg À1 , respectively.…”

Section: Calculationsmentioning

confidence: 99%

Use of a continuous leaching method to assess the oral bioaccessibility of trace elements in seafood

et al. 2012

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Simultaneous analysis of 21 elements in foodstuffs by ICP-MS after closed-vessel microwave digestion: Method validation

Cited by 93 publications

References 13 publications

Determination of 20 trace elements in fish and other seafood from the French market

Determination of 20 trace elements in fish and other seafood from the French market

Scientific Opinion on the risk for public health related to the presence of mercury and methylmercury in food

Use of a continuous leaching method to assess the oral bioaccessibility of trace elements in seafood

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