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

Taylor, A. H.; Branch, Simon; Fisher, Andrew; Halls, David J.; White, Mark D.

doi:10.1039/b100485i

Cited by 32 publications

(17 citation statements)

References 115 publications

(198 reference statements)

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“…Inductively coupled plasma mass spectrometry (ICPMS) is one of the most commonly used techniques for the determination of REE in biological samples because of its ability to carry out rapid multi-element detection over a wide concentration range with relatively low detection limits. 7 However, major difficulties in the determination of REE in natural samples (e.g. tomato) are caused by interferences formed in the plasma and by the oxide interferences that REE generate on each other.…”

mentioning

confidence: 99%

Determination of rare earth elements in tomato plants by inductively coupled plasma mass spectrometry techniques

Spalla

Baffi

Barbante

et al. 2009

Rapid Comm Mass Spectrometry

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In recent years identification of the geographical origin of food has grown more important as consumers have become interested in knowing the provenance of the food that they purchase and eat. Certification schemes and labels have thus been developed to protect consumers and genuine producers from the improper use of popular brand names or renowned geographical origins. As the tomato is one of the major components of what is considered to be the healthy Mediterranean diet, it is important to be able to determine the geographical origin of tomatoes and tomato-based products such as tomato sauce. The aim of this work is to develop an analytical method to determine rare earth elements (RRE) for the control of the geographic origin of tomatoes. The content of REE in tomato plant samples collected from an agricultural area in Piacenza, Italy, was determined, using four different digestion procedures with and without HF. Microwave dissolution with HNO3 + H2O2 proved to be the most suitable digestion procedure. Inductively coupled plasma quadrupole mass spectrometry (ICPQMS) and inductively coupled plasma sector field plasma mass spectrometry (ICPSFMS) instruments, both coupled with a desolvation system, were used to determine the REE in tomato plants in two different laboratories. A matched calibration curve method was used for the quantification of the analytes. The detection limits (MDLs) of the method ranged from 0.03 ng g(-1) for Ho, Tm, and Lu to 2 ng g(-1) for La and Ce. The precision, in terms of relative standard deviation on six replicates, was good, with values ranging, on average, from 6.0% for LREE (light rare earth elements) to 16.5% for HREE (heavy rare earth elements). These detection limits allowed the determination of the very low concentrations of REE present in tomato berries. For the concentrations of REE in tomato plants, the following trend was observed: roots > leaves > stems > berries.

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confidence: 99%

Determination of rare earth elements in tomato plants by inductively coupled plasma mass spectrometry techniques

Spalla

Baffi

Barbante

et al. 2009

Rapid Comm Mass Spectrometry

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“…However, the sheath-flow (make-up buffer) dilution and apparently insufficient transport efficiency set limits on an inherently very high sensitivity of ICP-MS. For this reason chiefly, applications of CE coupled with ICP-MS to trace species analysis remain rather scarce [62,70,72,78,80,[85][86][87] and have to be adapted in future research. In this regard, an attractive alternative to the determination of elements capable of forming volatile compounds is the use of an CE-ICP-MS interface, which incorporates an on-line volatile species (e.g., hydride) generation system followed by a gas-liquid separator [88]. Such species are introduced into the plasma nearly quantitatively that offers significantly better detection limits, as was demonstrated by Silva de Rocha et al [62] for the analysis of mercury species.…”

Section: Mass Spectrometrymentioning

confidence: 99%

Recent advances and trends in capillary electrophoresis of inorganic ions

Timerbaev

2002

Electrophoresis

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Capillary electrophoresis (CE) continues its invasion into the domain of inorganic analysis. This review summarizes the progress and significant developments of CE of inorganic ions over the first two years of the new century. As manifested by the substantial number of published articles, this field is still witnessing a growing activity of many separation scientists. To provide an in-depth treatment of fundamental and methodological aspects of inorganic ion analysis by CE, an extensive fraction of the relevant literature is covered whereas only most innovative application reports are briefly considered. Most of the recent advancements have focused on CE system modernization designed to improve a limited detection sensitivity, which still remains a major obstacle to overcome in order to ensure the method's wider practical acceptance. Attention is also given to how and in which directions the future research could be performed to implement CE in routine inorganic analysis.

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“…1 This Update reviews publications appearing up to October 2001. Table 1 summarises details of the publications while the text describes the more important developments.…”

Section: Analysis Of Clinical and Biological Materialsmentioning

confidence: 99%