Analytical performance of an inductively coupled plasma optical emission spectrometry with dual view configuration

Silva, Júlio César José da; Baccan, Nivaldo; Nóbrega, Joaquim A.

doi:10.1590/s0103-50532003000400026

Cited by 8 publications

(9 citation statements)

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“…However, depending on the analyte and equipment configuration, the detect- ability is lower than that typically obtained using graphite furnace atomic absorption spectrometry (GF AAS) and inductively coupled plasma mass spectrometry (ICP-MS) (Silva, Baccan, & Nóbrega, 2003). In the majority of methods for ICP OES, it is necessary to convert solid samples into solutions by acid digestion.…”

Section: Introductionmentioning

confidence: 99%

Elemental analysis of nuts and seeds by axially viewed ICP OES

et al. 2011

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Section: Introductionmentioning

confidence: 99%

Elemental analysis of nuts and seeds by axially viewed ICP OES

et al. 2011

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“…However, the former procedure may increase the possibility of contamination and volatilization losses of the analytes, and both decrease the analytical frequency. An alternative to reduce these problems is the use of inductively coupled plasma optical emission spectrometry (ICP OES), a multi-elementar technique that allows the determination of major, minor, and trace elements in complex samples with an improved ability to provide rapidly a multi-analytical response (Silva et al 2003). However, this technique is also susceptible to matrix effects due to the presence of concomitants (Todoli and Mermet 1999) and acid medium (Dubuisson et al 1998a).…”

Section: Introductionmentioning

confidence: 99%

“…The introduction of acid solutions with physical properties different from water in the plasma may modify the characteristics of the aspirated solution and, consequently, the aerosol formation and transport processes. This latter effect is especially critical when organic acids are employed (Roncevic and Siroki 1994;Korn and de Oliveira 1998;Rizzon and Miele 1998;Dubuisson et al 1998a;Ackley et al 1999;Todoli and Mermet 1999;Silva et al 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the operation conditions employed (1.0 l min À1 and 1.0 kW as nebulization gas flow rate and applied power, respectively) in this study might have enhanced the observed effects. According to the literature (Dubuisson et al 1998a;Brenner and Zander 2000;Silva et al 2003), a high nebulization gas flow rate and a reduced applied power characterize a plasma in non-robust conditions.…”

Section: Introductionmentioning

confidence: 99%

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Dilute-and-shoot procedure for the determination of mineral constituents in vinegar samples by axially viewed inductively coupled plasma optical emission spectrometry (ICP OES)

Silva

Cadore

Nóbrega

et al. 2007

Food Additives and Contaminants

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Samples of commercial wine vinegar were introduced in an axially viewed inductively coupled plasma optical emission spectrometry instrument (AX-ICP OES) equipped with different sample introduction systems: a cross-flow nebulizer combined with a double-path spray chamber (CF-DP) and cone spray associated with a cyclone spray chamber (CS-CC). Samples of white and red wine vinegar were diluted with water before analysis. Higher magnesium Mg II/Mg I ratios (11 and 10 for CS-CC and CF-DP, respectively) were obtained using a nebulization gas flow rate of 0.6 l min-1 and an applied power of 1.3 kW. The background equivalent concentrations (BEC) and signal-to-background ratio (SBR) of analytes were improved using scandium (Sc) as the internal standard. The limits of detection (LOD) and limits of quantification (LOQ) for mineral constituents were similar for both introduction systems. Best recoveries values were obtained using a plasma under robust conditions, CS-CC system and Sc as the internal standard. The concentration determined in 13 commercial samples of wine vinegars varied between 0.2 and 3.0, between 0.02 and 0.4, between 8.5 and 100.0, between 0.01 and 0.05, between 27.0 and 540.0, between 4.0 and 79.0, between 0.4 and 10.0, and between 0.01 and 2.0 for aluminium (Al), barium (Ba), calcium (Ca), copper (Cu), potassium (K), magnesium (Mg), manganese (Mn), and zinc (Zn), respectively.

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“…With the proper measurement wavelength selection and viewing mode, ICP-OES has the capability of measuring major, minor, and trace elements in solution and boasts up to ten orders of magnitude in analytical working range (PerkinElmer Inc. 2013). ICP-OES is also unaffected by isobaric ions, a common consideration in ICP-MS. To help ensure the acquisition of accurate data with ICP-OES (Olesik 1996), instrumental parameters such as proper wavelength selection, sample aerosol formation from the nebulizer (Pereira et al 2012), plasma temperature (Groh et al 2009), and emission viewing mode (Silva et al 2003) must be carefully optimized. With careful consideration, ICP-OES is an accurate and quite versatile technique for multi-elemental analysis.…”

Section: Introductionmentioning

confidence: 99%

Varying matrix effects for elemental analysis identified from groundwater in the Barnett Shale

Carlton

Fontenot

Hildenbrand

et al. 2015

Int. J. Environ. Sci. Technol.

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The quality of analytical measurements can be influenced by the matrix of the sample of interest. The knowledge of the sample matrix allows for appropriate sample preparation, instrumental parameters, and quantification methods in an effort to achieve accurate results. Matrix matching can be difficult when sampling across various water sources with the possible introduction of unknown endogenous contaminants due to various degrees of land use, urbanization, and energy exploration, likely playing a factor. The degree of matrix effects in inductively coupled plasma-optical emission spectroscopy for nineteen metals from twenty groundwater samples across North Texas was assessed using a standard addition method. Matrix effects were characterized in collected groundwater samples (a) with no pretreatment, (b) after reversed-phase solid-phase extraction of possible organic contaminants, and (c) for a matrix of organic material retained on the reversed-phase sorbent. It was found that without any extraction treatment, only 54 % of all measurements experienced no matrix effect. After extracting unknown organic sample constituents, an increase to 74 % of measurements showing no matrix effect was recorded. Reconstituting the extracted organic sample matrix found this fraction to be a significant source of the deviated results with only 13 % experiencing no matrix effect. Results for the metals investigated are also discussed, along with correlations to water quality parameters such as turbidity, total dissolved solids, and salinity.

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Analytical performance of an inductively coupled plasma optical emission spectrometry with dual view configuration

Abstract: In the Table 2

Cited by 8 publications

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Elemental analysis of nuts and seeds by axially viewed ICP OES

Elemental analysis of nuts and seeds by axially viewed ICP OES

Dilute-and-shoot procedure for the determination of mineral constituents in vinegar samples by axially viewed inductively coupled plasma optical emission spectrometry (ICP OES)

Varying matrix effects for elemental analysis identified from groundwater in the Barnett Shale

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