A novel detection scheme of trace elements using ICP-MS

Yau, Michael H. P.; Chan, Wing-Shing

doi:10.1039/b508650g

Cited by 16 publications

(20 citation statements)

References 29 publications

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“…The current to voltage amplifier in the ICP-MS may respond fast enough but the digitizer may not be capable of short enough conversion times. If the current to voltage amplifier in the ICP-MS is fast enough, an external digital oscilloscope or fast analog to digital computer board can be used to digitize the signal from the current to voltage amplifier in the ICP-MS. Alternatively, the analog output of the detector could be directly connected to a digital oscilloscope [36,101] or to a fast external current to voltage amplifier followed by a digital oscilloscope [31,79,85]. The digital oscilloscope can be connected to a computer for data processing.…”

Section: Analog Measurement Of Nanoparticle Signalsmentioning

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: Analog Measurement Of Nanoparticle Signalsmentioning

confidence: 99%

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

et al. 2016

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“…Single particle detection using ICP-AES [15][16][17][18][19] and ICP-MS 20-30 is a feasible methodology for direct analysis of individual microparticles, [15][16][17]19,[20][21][22][23] nanoparticles, 19,30 colloids [25][26][27][28][29] and cells. 18,24 This detection mode has also been adopted in gold nanoparticle-based immunoassay methods 31 and in combination with trace metal preconcentration onto iron hydroxide particles, 32 as a strategy to improve detection limits.…”

Section: Introductionmentioning

confidence: 99%

Selective identification, characterization and determination of dissolved silver(i) and silver nanoparticles based on single particle detection by inductively coupled plasma mass spectrometry

Laborda

Jiménez-Lamana

Bolea

et al. 2011

J. Anal. At. Spectrom.

344

292

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The different behaviours of dissolved silver and silver nanoparticles under ICP-MS single particle detection conditions have been used to differentiate directly between both forms of silver in aqueous samples. Suspensions containing silver nanoparticles at number concentrations below 10^9 L-1 and/or dissolved Ag(I) are introduced into the ICP-MS by conventional pneumatic nebulization and measured with a time resolution of 5 ms. Each silver nanoparticle is converted in the ICP into a packet of ions, which are detected as a single pulse, whose intensity is proportional to the number of silver atoms in the nanoparticle, whereas dissolved silver produces pulses of averaged constant intensity. The frequency plots with respect to the intensity measured for each pulse show independent distributions for dissolved silver and silver nanoparticles, whose profiles are also different (Poisson and lognormal, respectively). Size limits of detection for pure Ag nanoparticles of 18 nm, equivalent to a silver mass of 32 ag, were obtained. Number concentration limits of detection of 1 X 10^4 L-1 can be achieved. A methodological approach for identification, characterization and determination of mass and number concentration of dissolved Ag(I) and silver nanoparticles at environmentally relevant concentrations is presented

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“…One novel procedure involved adsorbing analyte ions (Ba, Cd, La) on to the surface of sub-µm sized particles of Fe(OH) 3 (Yau and Chan 2005). One novel procedure involved adsorbing analyte ions (Ba, Cd, La) on to the surface of sub-µm sized particles of Fe(OH) 3 (Yau and Chan 2005).…”

Section: Preconcentration and Matrix Separationmentioning

confidence: 99%

“…Few publications described new offline preconcentration procedures and this is probably indicative of the growing trend towards online preconcentration. One novel procedure involved adsorbing analyte ions (Ba, Cd, La) on to the surface of sub-µm sized particles of Fe(OH) 3 (Yau and Chan 2005). The Fe slurry was then introduced into an ICP-MS using a conventional Babington nebuliser and cooled double-pass spray chamber.…”

Section: Preconcentration and Matrix Separationmentioning

confidence: 99%

Trace Element Determination by ICP‐AES and ICP‐MS: Developments and Applications Reported During 2004 and 2005

Linge

2006

Geostandard Geoanalytic Res

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This review describes significant developments in trace element determination using inductively coupled plasma‐atomic emission spectrometry (ICP‐AES) and inductively coupled plasma‐mass spectrometry (ICP‐MS) that were reported in 2004 and 2005. It focuses on the application of ICP techniques to geological and environmental samples; fundamental studies in ICP‐MS and ICP‐AES instrumentation are not included. The literature reviewed indicated that the majority of new publications concerned advances in ICP‐MS analysis rather than ICP‐AES. However, ICP‐AES developments are still being published, particularly in the areas of sample preconcentration and sample introduction. The trend in increasing publication of developments in hyphenated speciation techniques looks set to persist as knowledge of elemental speciation becomes critical for many environmental studies. Collision or reactions cells were the most reported technique for spectral interference removal in ICP‐MS, probably reflecting the growing adoption of cell instruments in laboratories during the last few years.

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A novel detection scheme of trace elements using ICP-MS

Cited by 16 publications

References 29 publications

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

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

Selective identification, characterization and determination of dissolved silver(i) and silver nanoparticles based on single particle detection by inductively coupled plasma mass spectrometry

Trace Element Determination by ICP‐AES and ICP‐MS: Developments and Applications Reported During 2004 and 2005

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