Comparison of Axially and Radially Viewed Inductively Coupled Plasmas for Multi-element Analysis: Effect of Sodium and Calcium

Brenner, I. B.; Zander, Andrew T.; Cole, M. W.; Wiseman, Alan

doi:10.1039/a700465f

Cited by 90 publications

(84 citation statements)

References 16 publications

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“…However, the use of higher plasma powers may increase the noise level and also the background signal affecting the determination of microconstituents, 19 as Mn and Fe. On the other hand, Silva et al 20 observed that the degradation of LOD values when the plasma was operated at high applied powers was not so large, compared to the values in low applied powers.…”

Section: Instrumental Parameters Optimizationmentioning

confidence: 99%

Determination of metals in Brazilian coconut water using an inductively coupled plasma optical emission spectrometer

Sousa¹,

Baccan²,

Cadore³

2005

J. Braz. Chem. Soc.

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A presença de espécies metálicas na água de coco, provenientes de diferentes estados brasileiros, foi investigada. A técnica de ICP OES foi utilizada para determinar Ca, Mg, Mn, Fe, Zn e Cu, sem mineralização da matriz. Utilizando parâmetros instrumentais otimizados as determinações apresentaram RSD geralmente menor que 2% e boa exatidão. ) of the analytes in the samples studied were: Ca (107 -237), Mg (50 -88), Mn (1 -5) and Zn (0.04 -0.18). Considering the Reference Daily Intakes for Minerals (RDI) it was estimated that the nutritional contribution from the ingestion of 400 mL of the beverage corresponds to approximately 7% of the RDI for Ca and Mg and 58% for Mn.

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Section: Instrumental Parameters Optimizationmentioning

confidence: 99%

Determination of metals in Brazilian coconut water using an inductively coupled plasma optical emission spectrometer

Sousa¹,

Baccan²,

Cadore³

2005

J. Braz. Chem. Soc.

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“…Matrix elements with a low first ionization potential (K, Na, Rb, Cs) were found to cause signal suppression or enhancement, depending on the analyte (56)(57)(58). A new kind of matrix interference was found and seems to be correlated with the second ionization potential of some matrix elements (33,34).…”

Section: Inductively Coupled Plasmamentioning

confidence: 96%

Improved Analytical Characterization of Solid Waste-Forms by Fundamental Development of Laser Ablation Technology

Russo¹

2000

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“…This situation characterizes a robust plasma and may be advantageous to decompose organic samples and to minimize matrix effects, mainly interferences of easily ionized elements, such as Na, K, and Ca. 17 Robustness as a parameter is calculated by dividing the emissions of the ionic (280.270 nm) and atomic (285.213 nm) lines of Mg 12 and a Mg II/Mg I ratio equal or higher than 10 represents a robust plasma. 17 For the nebulization gas flow rate (NFR) evaluation, the plasma power (1300 W) and the auxiliary gas flow rate (0.5 L min -1 ) were fixed and the NFR was varied.…”

Section: Plasma Optimizationmentioning

confidence: 99%

“…17 Robustness as a parameter is calculated by dividing the emissions of the ionic (280.270 nm) and atomic (285.213 nm) lines of Mg 12 and a Mg II/Mg I ratio equal or higher than 10 represents a robust plasma. 17 For the nebulization gas flow rate (NFR) evaluation, the plasma power (1300 W) and the auxiliary gas flow rate (0.5 L min -1 ) were fixed and the NFR was varied. The results obtained are presented in Figure 1.…”

Section: Plasma Optimizationmentioning

confidence: 99%

Analysis of liquid stevioside and cyclamate-saccharin dietetic sweeteners by inductively coupled plasma optical emission spectrometry without sample treatment

Sousa¹,

Baccan²,

Cadore³

2006

J. Braz. Chem. Soc.

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A determinação de espécies inorgânicas em adoçantes líquidos à base de ciclamato-sacarina e esteviosídeo é descrita. O método, sem tratamento prévio da amostra, é baseado na espectrometria de emissão óptica em plasma com acoplamento indutivo. Parâmetros instrumentais foram otimizados de acordo com a robustez do plasma e a razão sinal analítico/ sinal de fundo. A exatidão foi avaliada para As, Ca, Cd, Co, Cu, Fe, Mg, Mn, Ni, Pb e Zn empregando experimentos de adição e recuperação. Os valores de recuperação ficaram entre 90 e 110% para a maioria dos analitos, os RSDs obtidos foram, em geral, menores que 5% e os limites de detecção ficaram na faixa de 0,7 (Mg) a 71 (Pb) μg L -1. Não foi detectada a presença de As, Co e Pb. As concentrações de Cu e Zn foram semelhantes para as amostras de ciclamatosacarina e esteviosídeo enquanto as demais espécies mostraram diferenças.An analytical method for the determination of inorganic species in liquid cyclamate-saccharin and stevioside sweeteners is presented. The method is based on inductively coupled plasma optical emission spectrometry and allowed analysis without prior sample treatment. Instrumental parameters were optimized according to plasma robustness and the signal to background ratio. The accuracy of the method was evaluated for As, Ca, Cd, Co, Cu, Fe, Mg, Mn, Ni, Pb, and Zn employing analyte addition and recovery experiments. The recovery values were between 90 and 110% for the majority of the analytes, the RSDs obtained were, in general, lower than 5% and the limits of detection were in the range 0.7 (Mg) -71 (Pb) μg L -1 . The analyses of different samples indicated that the average values of many of the analytes studied were different for the two types of samples. Copper and Zn concentrations were in the same range and As, Co, and Pb were not detected in any samples.

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Comparison of Axially and Radially Viewed Inductively Coupled Plasmas for Multi-element Analysis: Effect of Sodium and Calcium

Cited by 90 publications

References 16 publications

Determination of metals in Brazilian coconut water using an inductively coupled plasma optical emission spectrometer

Determination of metals in Brazilian coconut water using an inductively coupled plasma optical emission spectrometer

Improved Analytical Characterization of Solid Waste-Forms by Fundamental Development of Laser Ablation Technology

Analysis of liquid stevioside and cyclamate-saccharin dietetic sweeteners by inductively coupled plasma optical emission spectrometry without sample treatment

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