Universal calibration for analysis of organic solutions by inductively coupled plasma atomic emission spectrometry

Botto, Robert I.; Zhu, J.

doi:10.1039/ja9961100675

Cited by 50 publications

(23 citation statements)

References 10 publications

(2 reference statements)

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“…The important dead volume of the nebulizer (around 200 mL) together with various heating and cooling stages is prone to condensation of organic metal species or complexes either on the glassware, or in the drain solutions. Underestimation of the true metal content is then likely to occur (Botto and Zhu, 1996). In addition, heavy fractions such as asphaltenes or oil residues can also partially deposit residue on the glass tube in the heated (and cooled) part of the USN suggesting memory effects (Botto and Zhu, 1994).…”

Section: Determination Of Loq For Icp-oes and Usn-icp-oesmentioning

confidence: 99%

“…Moreover, severe matrix interferences have already been observed during the analysis of organic solutions in ICP-OES due to plasma interactions (Botto, 1987). In order to minimize these problems, five solutions are globally described in the literature with organic injection using micro-nebulisation system (Dreyfus et al, 2005;Botto, 2002), desolvatation using ultrasonic nebulisation and membrane (Botto and Zhu, 1996;Duyck et al, 2002), digestion of the sample (Wondimu et al, 2000;Heilmann et al, 2004, Lopez andMonaco, 2004), microemulsion (Souza et al, 2004;Wang et al, 2003) for introduction of an aqueous phase in the plasma and finally electrothermal vaporization (Resano et al, 2001;Saint'Pierre et al, 2002). Micronebulization and ultrasonic nebulisation are sometimes used in combination with oxygen addition into the plasma, which is particularly recommended with ICP-MS detection.…”

Section: Introductionmentioning

confidence: 99%

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Trace Metal Analysis in Petroleum Products: Sample Introduction Evaluation in ICP-OES and Comparison with an ICP-MS Approach

Lienemann

Dreyfus

Pécheyran³

et al. 2007

Oil & Gas Science and Technology - Rev. IFP

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Section: Determination Of Loq For Icp-oes and Usn-icp-oesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Trace Metal Analysis in Petroleum Products: Sample Introduction Evaluation in ICP-OES and Comparison with an ICP-MS Approach

Lienemann

Dreyfus

Pécheyran³

et al. 2007

Oil & Gas Science and Technology - Rev. IFP

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“…It suggests that this system could be useful for ''universal calibration''. [45][46][47] This is of a noticeable importance for the analysis of samples of unknown organic matrices or those showing a temporal variability in its solvent composition.…”

mentioning

confidence: 99%

Introduction of organic solvent solutions into inductively coupled plasma-atomic emission spectrometry using a microwave assisted sample introduction system

Grindlay

Pérez

Gras

et al. 2006

J. Anal. At. Spectrom.

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A microwave assisted sample introduction system based on the use of a TM 010 cavity (MWDS2) has been employed for the introduction of 10% w/w organic solvent solutions in inductively coupled plasma atomic emission spectrometry (ICP-AES). Ethanol, propan-2-ol, formic and acetic acids have been used. Firstly, the effect of the incident microwave power and the sample uptake rate on the emission signal was evaluated. For all matrices tested, the higher emission signals were obtained when operating at the highest microwave power (i.e., 290 W) and sample uptake rate (400 mL min À1 ). Results with the MWDS2 were compared with those afforded by a desolvation system based on the use of a domestic microwave oven (MWDS) and by a conventional sample introduction system (CS). The MWDS2 provides the highest emission signals (up to 7 and 17 times higher than those with the MWDS and the CS, respectively). As regards the matrix effects originated by the organic solutions, results demonstrate that the use of a microwave-based sample introduction system, mainly the MWDS2, affords a noticeable reduction in the matrix effects originated by the use of organic solvent solutions in ICP-AES with a conventional sample introduction system. This behaviour can be explained by taking into account the solution transport rates afforded by the different sample introduction systems. For all the analytical lines and matrices tested and operating at 400 mL min À1 , the MWDS2 gives rise to signal values that are, on average, 1.2 AE 0.2 times the signal obtained with water. For the MWDS and the CS, this factor takes values of 1.6 AE 0.2 and 2.0 AE 0.5, respectively. Transient matrix effects have been observed operating with the MWDS2 when switching between water and an organic matrix solution. These transient effects result in a drift time about 4.5 times higher than those with a CS.

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“…Dans Botto et Zhu (1996), l'USN équipé de la membrane de désolvatation est encore modifié dans le but de pouvoir doser les composés de C4 à C8 sans influence majeure du solvant utilisé. Un allongement de la membrane passant de 80 cm à 140 cm permet d'améliorer encore l'élimination des fractions légères avec un rendement de désolvatation allant jusqu'à 99,9 %.…”

Section: Applications Récentes En Spectrométrie D'émission à Couplageunclassified

“…Le but avoué de cette publication est de rendre possible une calibration universelle quelque soit la matrice organique injectée entre C4 et C8. Les limites de détection sont meilleures que le système précédent (Botto et Zhu, 1994) Comparaisons des limites de quantification ds Botto (1993) et Botto et Zhu (1996 Quantification limit obtained by Botto (1993) and Botto and Zhu (1996) Une autre alternative pour limiter l'introduction de matières organiques dans le plasma consiste à injecter le solvant organique dispersé dans une phase aqueuse. Wang et al (2003) ont déterminés 22 métaux en teneurs de l'ordre de la dizaine de mg/kg dans un extrait organique pharmaceutique, une huile de vidange et un produit de référence NIST, en dispersant 50 µl d'échantillon dans 20 ml d'acide nitrique concentré.…”

Section: Applications Récentes En Spectrométrie D'émission à Couplageunclassified

Analyse de métaux traces dans les produits pétroliers, état de l'art

Lienemann¹

2005

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Après une brève introduction sur la problématique des métaux traces dans l'industrie pétrolière, un retour sur les trois techniques majeures de dosages des métaux traces dans les produits pétroliers est présenté reprenant les travaux effectués dans les dix dernières années. Ainsi les différents types d'introduction, utilisés pour la spectrométrie d'absorption atomique avec four électrothermique (GFAAS), la spectrométrie d'émission atomique par plasma à couplage inductif (ICP-OES) et la spectrométrie de masse par plasma à couplage inductif (ICP-MS), sont repris et comparés en terme de limite de détection atteinte. Les applications sont diverses et touchent la totalité des produits pétroliers, du biocarburant en passant par l'éthanol, aux plus classiques essences et gazoles, allant jusqu'aux produits plus lourds que sont les bitumes. Une revue sur les principaux couplages possibles permet d'entrevoir les différentes possibilités que ces techniques pourront offrir dans les années à venir en terme de spéciation des métaux dans les produits pétroliers. Abstract -Analysis of Trace Metals in Petroleum Products

show abstract

Universal calibration for analysis of organic solutions by inductively coupled plasma atomic emission spectrometry

Cited by 50 publications

References 10 publications

Trace Metal Analysis in Petroleum Products: Sample Introduction Evaluation in ICP-OES and Comparison with an ICP-MS Approach

Trace Metal Analysis in Petroleum Products: Sample Introduction Evaluation in ICP-OES and Comparison with an ICP-MS Approach

Introduction of organic solvent solutions into inductively coupled plasma-atomic emission spectrometry using a microwave assisted sample introduction system

Analyse de métaux traces dans les produits pétroliers, état de l'art

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