Quantitative analysis of trace elements in carbonates using laser ablation inductively coupled plasma mass spectrometry

Perkins, William H.; Fuge, R.; Pearce, Nicholas J. G.

doi:10.1039/ja9910600445

Cited by 122 publications

(66 citation statements)

References 6 publications

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“…We did, however, ablate a glass standard (NBS 612) and use this to calculate elemental concentrations. The glass standard and samples are not matrix-matched, and so the accuracy of the calculated concentrations is poor (Perkins et al 1991). They were, however, sufficient for our purpose, which was simply to assess in rough terms whether the laserablation and solution-based measurements were comparable.…”

Section: Methodsmentioning

confidence: 99%

Trace elements in otoliths indicate the use of open-coast versus bay nursery habitats by juvenile California halibut

Forrester¹,

Swearer²

2002

Mar. Ecol. Prog. Ser.

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Many coastal fishes use inshore nursery habitats as juveniles, but it is often difficult to define which nursery areas supply most recruits to adult populations. We tested whether trace element concentrations in otoliths can be used to identify which of 2 nursery habitats (bays or shallow open coast) were occupied by juvenile California halibut. Juveniles from bays in 1998 had concentrations of Cu and Pb in their otoliths that were higher than those in open coast juveniles of the same year. This broad-scale difference between bay and open coast juveniles remained intact when bay juveniles from 1994 to 1997 were added to the comparison, and juvenile halibut could be assigned to their nursery habitat of origin quite accurately (83%) using otolith concentrations of Cu and Pb. At a finer spatial scale, otolith concentrations of Cu and Pb differed among individual bays, and fish from the same bay could differ among years, precluding their use as markers of nursery habitat use at these scales. Like halibut otoliths, sediments from bays had higher concentrations of Cu and Pb than open coast nursery sites, and this difference was consistent over 11 yr. Otoliths and sediments from individual bays, however, showed no correlation in Cu and Pb concentrations. The concentration of Cu and Pb in sediments and their deposition in otoliths were thus loosely matched at a broad scale, though the underlying cause of this link is not known. A discriminant model, parameterized using Cu and Pb levels in juvenile otoliths, was used to classify prior nursery habitat use by 19 larger halibut (of unknown origin). Eleven of these halibut had high levels of Cu and Pb in the part of the otolith deposited as a juvenile, and were classified as of bay origin. The other 8 halibut had low otolith Cu and Pb levels in the juvenile portion of their otoliths and were classified as having used open coast nurseries. Overall, our results suggest that this approach has the potential to allow identification of nursery habitat use by California halibut at a broad scale (bay vs open coast) but not at a fine scale (individual bays).

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Section: Methodsmentioning

confidence: 99%

Trace elements in otoliths indicate the use of open-coast versus bay nursery habitats by juvenile California halibut

Forrester¹,

Swearer²

2002

Mar. Ecol. Prog. Ser.

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“…In addition, synthetic Ca-phosphate pellets MAPS-4 and MAPS-5 have been produced by USGS. Pressed-powder pellets of carbonate have been used in many laboratories as in-house reference materials for the analysis of samples with a carbonate matrix [79][80][81][82][83]. Calcium carbonate pressed pellets MACS-1, MACS-2 and MACS-3, which contain >60 trace elements with high concentrations, have been developed by the USGS.…”

Section: Reference Materials and Matrix Effectsmentioning

confidence: 99%

“…Given the influence of the matrix effect on the accuracy of quantifications, numerous researchers have performed a substantial amount of work in preparing carbonate-matrix reference materials, such as CaSiO 3 glass synthesized from coral powder [125], Ca-Mg carbonate glass with a lithium tetraborate flux [79] and pressed pellets of carbonate powders [79][80][81][82][83]. In general, the production of a homogeneous pressed pellet of a carbonate powder is difficult; a few elements in MACS-3 are even slightly heterogeneous [47].…”

Section: Silicate and Carbonate Mineralsmentioning

confidence: 99%

Applications of LA-ICP-MS in the elemental analyses of geological samples

Liu

et al. 2013

Chin. Sci. Bull.

105

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Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), which is a rapidly developing analytical technique for the analyses of trace elements and isotopes, plays an important role in advancing the study of Earth science, especially with respect to micro-geochemistry. This article reviews the application of LA-ICP-MS in the elemental analysis of solid geological samples. Although LA-ICP-MS has been widely used in the spatial resolution analysis of element compositions and rapid bulk analysis of whole-rock and soil samples, the analysis accuracy is restricted by numerous factors, including the instrumental conditions, the elemental fractionation and matrix effects, the lack of sufficient matrix-matched reference materials, and the strategies for quantitative calibration and sensitivity drift correction. According to the type of samples and the analyte elements, the analysis accuracy can be improved through the optimization of instrument conditions and the adoption of suitable correction strategies and reference materials. LA-ICP-MS, geological sample, elemental analysis, quantitative strategy Citation:Liu Y S, Hu Z C, Li M, et al. Applications of LA-ICP-MS in the elemental analyses of geological samples.

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“…The first approach is fusion to form a glass bead or disc. [1][2][3][4][5][6][7][8][9] The second approach is to press a powdered sample into a disc. 2-4, 7, 10-21 These studies have shown that since the ablation yield can vary by as much as 50% between discs, poor analytical data is obtained unless the calibration standards are prepared to exactly match the sample, or an internal standard element is used to correct for these large differences in ablation yield.…”

Section: Introductionmentioning

confidence: 99%

Absorption coefficient modified pressed powders for calibration of laser ablation inductively coupled plasma mass spectrometry

O'Connor

Landon

Sharp

2007

J. Anal. At. Spectrom.

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Powdered samples have been pressed, utilising a standard KBr infrared (IR) press, to produce mechanically stable 13 mm discs. Three 'absorbing', organic based binders have been employed in this work, vanillic acid, pyrazinoic acid and nicotinic acid, chosen because of their high optical absorbance at the wavelength of the incident laser energy (213 nm). Poly(vinyl alcohol) (PVA) was employed as an example of a 'non-absorbing' binder and because its use has been described previously in the literature. Discs of various sample/binder compositions were prepared and their absorption properties characterised by diffuse reflectance spectroscopy. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) was used to investigate the effect of different sample/binder compositions on signal sensitivity, whilst surface profilometry was performed on the resulting tracks to provide an estimate of the ablation depth achieved by the laser beam. It was found that discs prepared with vanillic acid had the highest optical absorbance at the wavelength of the laser system employed, resulting in a lower ablation depth and improved signal sensitivity, probably through the formation of smaller particles during the ablation process. Analysis of certified reference materials (CRMs) was performed using simple external calibration standards of similar and dissimilar CRMs. It was found that discs produced using a 40% vanillic acid binder, with a 60% sample composition gave superior quality analytical data when compared with the use of 40% PVA binder or no binder at all. These findings indicate the potential for fitfor-purpose quality analytical data to be obtained when employing external calibration standards, without internal standardisation and without exact matrix matching. These data also provide further evidence that standardisation of ablation conditions and mass flux to the plasma are prerequisites for robust calibration, particularly in the absence of a suitable internal standard element.

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Quantitative analysis of trace elements in carbonates using laser ablation inductively coupled plasma mass spectrometry

Cited by 122 publications

References 6 publications

Trace elements in otoliths indicate the use of open-coast versus bay nursery habitats by juvenile California halibut

Trace elements in otoliths indicate the use of open-coast versus bay nursery habitats by juvenile California halibut

Applications of LA-ICP-MS in the elemental analyses of geological samples

Absorption coefficient modified pressed powders for calibration of laser ablation inductively coupled plasma mass spectrometry

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