Local effects of atomizing analyte droplets on the plasma parameters of the inductively coupled plasma

Groh, Sebastian; García, Carmen C.; Murtazin, Ayrat; Horvatić, Vlasta; Niemax, K.

doi:10.1016/j.sab.2009.02.008

Cited by 60 publications

(65 citation statements)

References 24 publications

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“…The local plasma surrounding each vaporizing droplet and particle is cooled by the desolvating droplet and vaporizing particle [79,80]. Sufficient time is required in the hot ICP to completely vaporize the nanoparticles [31,81,82].…”

Section: Conversion Of Droplets and Nanoparticles Into Elemental Ionsmentioning

confidence: 99%

Single Particle ICP-MS: Advances toward routine analysis of nanomaterials

et al. 2016

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From its early beginnings in characterizing aerosol particles to its recent applications for investigating natural waters and waste streams, single particle inductively coupled plasma-mass spectrometry (spICP-MS) has proven to be a powerful technique for the detection and characterization of aqueous dispersions of metal-containing nanomaterials. Combining the high-throughput of an ensemble technique with the specificity of a single particle counting technique and the elemental specificity of ICP-MS, spICP-MS is capable of rapidly providing researchers with information pertaining to size, size distribution, particle number concentration, and major elemental composition with minimal sample perturbation. Recently, advances in data acquisition, signal processing, and the implementation of alternative mass analyzers (e.g., time-of-flight) has resulted in a wider breadth of particle analyses and made significant progress toward overcoming many of the challenges in the quantitative analysis of nanoparticles. This review provides an overview of spICP-MS development from a niche technique to application for routine analysis, a discussion of the key issues for quantitative analysis, and examples of its further advancement for analysis of increasingly complex environmental and biological samples. Graphical Abstract Single particle ICP-MS workflow for the analysis of suspended nanoparticles.

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Section: Conversion Of Droplets and Nanoparticles Into Elemental Ionsmentioning

confidence: 99%

Single Particle ICP-MS: Advances toward routine analysis of nanomaterials

et al. 2016

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“…[26][27][28][29] Quantitative analysis is best achieved by calibration using standard particles, 6,28,30 although standard-solution calibration is commonly used due to limited availability of standard particles. 1,31 The basic assumption of the standard-solution calibration method is that ICP-MS intensity depends only on the mass flux of the analyte, irrespective of the original states of the analyte. It is generally accepted that the aerosols of standard solution are completely vaporized in the ICP at typical ICP-MS sampling depth of 10 mm.…”

Section: Introductionmentioning

confidence: 99%

“…Axial-viewing SP-ICP-AES has been used to track the particles continuously to study the linear dynamic range and local cooling effects of Au and SiO2 particles. 1,4 The method, however, does not provide information of the size and position of the ion plume in the ICP central channel and is, therefore, lacking in the ability for the study of particle vaporization and analyte diffusion. Radial-viewing ICP-AES with array detector can provide time-resolved spatial information of the ICP.…”

Section: Introductionmentioning

confidence: 99%

“…42 In other words, particle vaporization is the rate determining step and the dominating factor of the signal production process of single particles in the ICP. Yb is selected over typical SP-ICP-AES test elements of gold and silicon 1,4,5 because the LOD of Yb is approximately 10 times lower than that of gold (0.017 μg/mL at Au I 242.795 nm) and silicon (0.012 μg/mL at Si I 251.611 nm). 43 The strong emission of Yb is beneficial for the detection of small particles over the strong ICP background.…”

Section: Introductionmentioning

confidence: 99%

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Double-Viewing-Position Single-Particle Inductively Coupled Plasma-Atomic Emission Spectrometry for the Selection of ICP Sampling Position in SP-ICP Measurements

2018

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Double-viewing-position single-particle inductively coupled plasma-atomic emission spectrometry (DVP-SP-ICP-AES) measures emission intensity at two ICP vertical positions simultaneously using a single photomultiplier tube. A particle travelling up the ICP gives two consecutive temporal emission peaks. The Yb II 328.937-nm emission intensity of the two peaks for single Yb2O3 particles of diameter of 200 -2000 nm are plotted against each other in a correlation plot. The correlation is poor when the gas temperature at the lower observation position is approximately the boiling point of the particles. Poor particle vaporization at the center of the central channel occurs because the gas temperature is 400 K lower than the temperature at the rim. The correlation is improved by shifting the observation positions up or using helium-argon mixed carrier gas to increase the gas temperature. Gas temperature is an important parameter for precise single particle-ICP measurements. DVP-SP-ICP-AES can be used to identify poor particle vaporization without the need of temperature measurement.

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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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Local effects of atomizing analyte droplets on the plasma parameters of the inductively coupled plasma

Cited by 60 publications

References 24 publications

Single Particle ICP-MS: Advances toward routine analysis of nanomaterials

Single Particle ICP-MS: Advances toward routine analysis of nanomaterials

Double-Viewing-Position Single-Particle Inductively Coupled Plasma-Atomic Emission Spectrometry for the Selection of ICP Sampling Position in SP-ICP Measurements

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

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