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      Atomic spectrometry update. Review of advances in the analysis of metals, chemicals and functional materials

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          Abstract

          This review covers advances in the analysis of advanced materials, metals, fuels and lubricants, nano structures, ceramics, refractories, organic and inorganic chemicals, catalysts and nuclear materials by a range of techniques including X-ray, ICP, LIBS, mass spectrometry, synchrotron-based techniques, plus non-destructive and ablation surface techniques.

          Abstract

          There has been significant progress in the use of laser induced breakdown spectrometry (LIBS) as a method of monitoring steel production in real time. This has the benefits of both time and cost saving. There has been a drop in the number of papers reporting methods for the analysis of fuels. This may be a function of the drop in oil prices leading to reduced finance for research. However, the determination of S is one of the hot topics in this sample type. This is possibly a consequence of companies attempting to meet the increasingly strict regulations on S emissions. Analytical methodology, e.g. LA-ICP-MS, LIBS or XRF, which produces minimal damage to the samples is still increasingly popular. This is especially true for historical or archaeological sample types, e.g. paintings, pottery and old documents; but is also applicable to forensic materials. Often, with these sample types, the analytical data are then treated using chemometrics packages so that provenance may be determined or patterns detected. Similar methodology was used for the identification of different plastics types, facilitating sorting and re-cycling. The analysis of nanoparticles is an increasingly popular subject area. Simple introduction of samples containing nanoparticles through a standard nebuliser/spray chamber sample introduction system is often complicated by the particles agglomerating. This leads to under-estimations of the concentrations present. Single particle analysis has continued to be a popular research area with real samples now being extracted and analysed rather than standard solutions. Similarly, field flow fractionation coupled with ICP spectrometry (sometimes also in conjunction with single particle analysis) has also been used to characterize nano-particulates and to distinguish between particulate and ionic species.

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          Most cited references253

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          Nanoparticle size detection limits by single particle ICP-MS for 40 elements.

          The quantification and characterization of natural, engineered, and incidental nano- to micro-size particles are beneficial to assessing a nanomaterial's performance in manufacturing, their fate and transport in the environment, and their potential risk to human health. Single particle inductively coupled plasma mass spectrometry (spICP-MS) can sensitively quantify the amount and size distribution of metallic nanoparticles suspended in aqueous matrices. To accurately obtain the nanoparticle size distribution, it is critical to have knowledge of the size detection limit (denoted as Dmin) using spICP-MS for a wide range of elements (other than a few available assessed ones) that have been or will be synthesized into engineered nanoparticles. Herein is described a method to estimate the size detection limit using spICP-MS and then apply it to nanoparticles composed of 40 different elements. The calculated Dmin values correspond well for a few of the elements with their detectable sizes that are available in the literature. Assuming each nanoparticle sample is composed of one element, Dmin values vary substantially among the 40 elements: Ta, U, Ir, Rh, Th, Ce, and Hf showed the lowest Dmin values, ≤10 nm; Bi, W, In, Pb, Pt, Ag, Au, Tl, Pd, Y, Ru, Cd, and Sb had Dmin in the range of 11-20 nm; Dmin values of Co, Sr, Sn, Zr, Ba, Te, Mo, Ni, V, Cu, Cr, Mg, Zn, Fe, Al, Li, and Ti were located at 21-80 nm; and Se, Ca, and Si showed high Dmin values, greater than 200 nm. A range of parameters that influence the Dmin, such as instrument sensitivity, nanoparticle density, and background noise, is demonstrated. It is observed that, when the background noise is low, the instrument sensitivity and nanoparticle density dominate the Dmin significantly. Approaches for reducing the Dmin, e.g., collision cell technology (CCT) and analyte isotope selection, are also discussed. To validate the Dmin estimation approach, size distributions for three engineered nanoparticle samples were obtained using spICP-MS. The use of this methodology confirms that the observed minimum detectable sizes are consistent with the calculated Dmin values. Overall, this work identifies the elements and nanoparticles to which current spICP-MS approaches can be applied, in order to enable quantification of very small nanoparticles at low concentrations in aqueous media.
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            Single particle inductively coupled plasma mass spectrometry: a powerful tool for nanoanalysis.

            Single particle inductively coupled plasma mass spectrometry is an emergent ICPMS method for detecting, characterizing, and quantifying nanoparticles. Although the number of applications reported to date is limited, the relatively simple instrumental requirements, the low number concentration detection levels attainable, and the possibility to detect both the presence of dissolved and particulate forms of an element make this methodology very promising in the nanoscience related areas.
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              Good practices in LIBS analysis: Review and advices

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                Author and article information

                Journal
                JASPE2
                Journal of Analytical Atomic Spectrometry
                J. Anal. At. Spectrom.
                Royal Society of Chemistry (RSC)
                0267-9477
                1364-5544
                2015
                2015
                : 30
                : 11
                : 2249-2294
                Affiliations
                [1 ]Hull Research & Technology Centre
                [2 ]BP
                [3 ]East Yorkshire
                [4 ]UK
                [5 ]School of Geography, Earth and Environmental Sciences
                [6 ]Plymouth University
                [7 ]Plymouth
                [8 ]BP FPT Technology Centre
                [9 ]Intertek Sunbury Technology Centre
                [10 ]Domino Printing Sciences Ltd
                [11 ]Cambridge
                [12 ]Glasgow Caledonian University
                [13 ]Glasgow
                [14 ]Tata Steel, Steelmaking and Casting Department
                [15 ]Middlesborough
                Article
                10.1039/C5JA90045J
                db911375-dea6-4f00-a14a-9a688fafcd84
                © 2015
                History

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