Precision and accuracy of laser ablation-ICP-MS analysis of rare earth elements with external calibration

Cousin, H.; Magyar, B.

doi:10.1007/bf01243621

Cited by 24 publications

(14 citation statements)

References 14 publications

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“…Applications include bulk analysis where ablation volumes of up to 1 mm in dimension are used [1][2][3]. However, the greatest strength of the technique is its application to microsampling in which extremely small pits, with dimensions down to a few m, are obtained [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Elemental fractionation in laser ablation inductively coupled plasma mass spectrometry

Longerich

Günther

Jackson

1996

Analytical and Bioanalytical Chemistry

207

101

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The major challenge to the use of laser ablation sample introduction, combined with inductively coupled plasma mass spectrometry, is the problem of calibration. In the geological analysis of minerals, calibration is complicated by the extraordinarily wide variety of sample matrices which may be encountered. While there is a lack of mineral standards with well characterized concentrations near 1 microg/g, the NIST glass reference materials (SRM 610-617) have been demonstrated to be very useful for the analysis of a wide variety of lithophile elements in silicate samples. An internal reference element, for which the concentration is known in the sample, has been widely used to make corrections for the multiplicative effects of volume (or weight) of the sample ablated, instrument drift, and matrix effects. This procedure works extremely well where elements being determined and the internal reference element being used share similar ablation behaviours; i.e., they do not fractionate progressively during the ablation and transport process. In this study, it is demonstrated that, in terms of ablation behaviour, elements fall into several distinct clusters and that the elements within these clusters correlate well with each other during a period of ablation. Thus, elements within a cluster can be determined using an internal reference element from within the same cluster. While a combination of periodic varying properties typifies the clusters, the geochemical classification of elements into lithophile (silicate loving), and chalcophile (sulphide loving) appears to offer the best characterization of the major groups.

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Section: Introductionmentioning

confidence: 99%

Elemental fractionation in laser ablation inductively coupled plasma mass spectrometry

Longerich

Günther

Jackson

1996

Analytical and Bioanalytical Chemistry

207

101

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“…The advantages of laser ablation are fully appreciated during analysis of environmental samples, which are regarded as difficult, and are often delivered to laboratories as heterogeneous powders [69,70]. They can be analysed either after digestion or in the solid state.…”

Section: Sampling Analytes From Solid Matricesmentioning

confidence: 99%

Quantitative aspects of inductively coupled plasma mass spectrometry

Bulska¹,

Wagner²

2016

Phil. Trans. R. Soc. A.

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Accurate determination of elements in various kinds of samples is essential for many areas, including environmental science, medicine, as well as industry. Inductively coupled plasma mass spectrometry (ICP-MS) is a powerful tool enabling multi-elemental analysis of numerous matrices with high sensitivity and good precision. Various calibration approaches can be used to perform accurate quantitative measurements by ICP-MS. They include the use of pure standards, matrix-matched standards, or relevant certified reference materials, assuring traceability of the reported results. This review critically evaluates the advantages and limitations of different calibration approaches, which are used in quantitative analyses by ICP-MS. Examples of such analyses are provided. This article is part of the themed issue ‘Quantitative mass spectrometry’.

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“…Calibration curves prepared from the glycerol suspensions exhibited a good linearity (R 2 >0.99) for all trace elements examined in this study. For a comparison, we carried out another calibration technique, 15,16 where metal-doped alumina was dried and pressed into a pellet. In order to evaluate the homogeneity, the following experiment was carried out.…”

Section: Preparation Of Standard Samples For Calibrationmentioning

confidence: 99%

“…2, the elemental concentrations were highly varied depending on the location. Homogenization of the dried sample can be achieved by a mechanical mixing, 15 which is time-consuming and sometimes causes serious contamination. Therefore, the glycerol method in the present work seems to be more suitable for calibration because of its simplicity and rapidity.…”

Section: Preparation Of Standard Samples For Calibrationmentioning

confidence: 99%

Laser Ablation and Low-Pressure Helium-ICP-MS for the Analysis of Alumina Powder Dispersed in Glycerol

2005

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Because of the outstanding mechanical and thermal properties, alumina has been extensively used for the production of advanced ceramic materials. The physical and chemical properties of those ceramics are sensitive to trace impurities present in alumina; hence, the determination of impurities is indispensable for the quality control of the products. Although the Japanese Industrial Standard recommends to use acid pressure decomposition followed by inductively-coupled plasma-atomic emission spectrometry (ICP-AES), 1 the analytical method is accompanied by several problems, including a time-consuming procedure and inadequate sensitivity for trace elements.A combination of laser ablation (LA) and inductively-coupled plasma mass spectrometry (ICP-MS) offers a powerful and promising method for the analysis of solid samples. In LA/ICP-MS, a laser beam is irradiated on the surface of the sample and the resulting tiny particles are immediately analyzed by ICP-MS. The method is simple and rapid, and it has been used for the analysis of a wide range of solid samples, including rocks, metals, glasses, and ceramics. [2][3][4] The conventional argon ICP, however, causes serious spectral interferences originating mainly from argon and ambient air constituents (e.g., carbon, nitrogen, oxygen). 5 On the other hand, ICP-MS using a helium plasma generated under the evacuated conditions can overcome the abovementioned problems.7-10 By combining with laser ablation, lowpressure helium-ICP-MS became more useful for the rapid analyses of solid samples. 11,12 The combined method, however, requires standard reference materials (i.e., matrix-matched solid standards), which are often unobtainable commercially.In the present work, we tried to use glycerol solutions containing desired trace elements for preparing calibration curves. The proposed method was successfully applied to the multielement determination of impurities in powdered alumina samples. ExperimentalApparatus Details of the LA/low-pressure helium-ICP-MS employed in this experiment have been described previously. 12 The plasma torch was cooled by running water, and the interface between ICP and MS was made of aluminum to minimize the background spectra. 9 A Nd/YAG laser (1064 nm, SL402, Spectron Laser Systems) was used for the ablation of samples. The ablation cell was composed of a vacuum long flange (NW40, BOC Edwards), a glass cover (for the transmission of a laser beam) and two sidetubes (for in and out of the carrier gas, copper, 4 mm i.d.). To the bottom of the cell were attached an NW40 blanking flange and a centering O-ring (BOC Edwards) for replacing the samples.The flow rate of the carrier and outer gas was regulated by a mass flow controller (MFC-260E, Nippon AERA). The connection of the helium gas line was completed by using vacuum fitting joints (Ultra-Torr, Swagelok). The operating conditions are summarized in Table 1. ReagentsA standard indium solution (20 mg ml -1 ) was prepared by dissolving 1.0 g of indium metal (flake, Katayama Chemicals) in 15 ml of 14 M...

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Precision and accuracy of laser ablation-ICP-MS analysis of rare earth elements with external calibration

Cited by 24 publications

References 14 publications

Elemental fractionation in laser ablation inductively coupled plasma mass spectrometry

Elemental fractionation in laser ablation inductively coupled plasma mass spectrometry

Quantitative aspects of inductively coupled plasma mass spectrometry

Laser Ablation and Low-Pressure Helium-ICP-MS for the Analysis of Alumina Powder Dispersed in Glycerol

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