Development and characterization of a Flow Focusing multi nebulization system for sample introduction in ICP-based spectrometric techniques

Kovachev, Nikolay; Almagro, Beatriz; Aguirre, Miguel; Hidalgo, Montserrat; Gañán‐Calvo, Alfonso M.; Canals, Antonio

doi:10.1039/b821531f

Cited by 20 publications

(6 citation statements)

References 36 publications

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“…A further new nebulizer is the so-called flow focusing multiple nebulizer, where four nebulization nozzles with independent liquid feeding and a common gas inlet are used. Here, it is possible to decrease the liquid uptake considerably and to make the use of internal standardization more flexible (82). The internal standardization as a means for depressing matrix effects also could be studied by stirred tank experiments, allowing the use of many internal standards and analytes in a flexible way (83).…”

Section: Atomic Emission Spectrometrymentioning

confidence: 99%

Atomic Spectroscopy: A Review

2010

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Section: Atomic Emission Spectrometrymentioning

confidence: 99%

Atomic Spectroscopy: A Review

2010

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“…No comment was made regarding the reproducibility of the results, given the spray chambers tested were all made in‐house. A multiple nebuliser was hypothesised to produce an aerosol with very small droplets, without the loss of signal seen at low sample uptake flow rates (Kovachev et al. 2009).…”

Section: Inductively Coupled Plasma‐atomic Emission Spectrometrymentioning

confidence: 99%

“…No comment was made regarding the reproducibility of the results, given the spray chambers tested were all made in-house. A multiple nebuliser was hypothesised to produce an aerosol with very small droplets, without the loss of signal seen at low sample uptake flow rates (Kovachev et al 2009). The multiple nebuliser worked optimally with a single pass spray chamber and had comparable ICP-AES signal, compared to a conventional concentric nebuliser and cyclonic spray chamber, but at half the flow rate.…”

Section: Atomic Absorption Spectrometrymentioning

confidence: 99%

GGR Biennial Review: Atomic Absorption, Inductively Coupled Plasma‐Atomic Emission Spectrometry, Neutron Activation Analysis and X‐Ray Fluorescence Spectrometry Review for 2008–2009

Bèdard¹,

Linge²

2010

Geostandard Geoanalytic Res

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This review describes developments major and in trace element determination using atomic absorption spectroscopy (AAS), inductively coupled plasma‐atomic emission spectrometry (ICP‐AES), instrumental neutron activation analysis (INAA), and X‐ray fluorescence (XRF) spectrometry that were reported in 2008 and 2009. Publication levels were comparable to those of previous years, except for XRF which showed an increase in the number of articles published in the past 2 years. In terms of number of publications and impact, the most active field was AAS, while INAA was the least active. As expected for well‐established and mature methods, novel developments for all four analytical techniques were relatively sparse. For AAS, the most notable publications concerned developments in sample introduction, particularly focussing on solid samples, increasing analyte sensitivity, and higher sample throughput. For ICP‐AES, publication of developments in sample introduction, remediation of matrix effects and calibration continues. Compared with past years, there was a clear focus on sample preconcentration methods, but very few publications reporting new hyphenated speciation methods. For INAA, there were several publications exploring the accuracy and robustness of the method, as well as the requirements for INAA to meet criteria for a primary method of measurement. Two other related techniques, delayed neutron activation analysis, and prompt gamma activation analysis, were also described. Hyphenated XRF techniques showed interesting developments in enabling XRF and XRD analysis on the same spot, and further work characterising and calibrating three‐dimensional micro‐XRF shows promising results for investigating sample heterogeneity.

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“…FB nozzles have been used in spectrometric techniques for generation of analyte droplets (Kovachev et al 2009;Aguirre et al 2010;Pereira et al 2014) and in atomization of biofuels (Simmons and Agrawal 2012).…”

Section: Introductionmentioning

confidence: 99%

Visualization and size-measurement of droplets generated by Flow Blurring® in a high-pressure environment

Modesto-López

Gañán‐Calvo

2017

Aerosol Science and Technology

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Flow Blurring Ò (FB) atomization is a highly efficient method to produce aerosols. It originates from an unexpected turbulent back flow motion in the interior of the atomizer. The onset for the appearance of such pattern is dictated by a geometrical parameter, ', that is, the ratio of the distance from the tip of the liquid feeding tube to the discharge orifice (H), and the diameter of the discharge orifice (D). In this work, a FB atomizer with a nominal ' D 1/6 was used to produce water and ethanol droplets into pressurized environments (>1 MPa). The droplet size distributions and mean droplet speeds were investigated using (1) direct visualization with an ultra-high-speed video camera coupled with an automated droplet measurement (ADM) program and (2) using a light scattering instrument. Light scattering measurements, with water and ethanol, varying the driving pressure to produce the aerosol (DP), indicate a power dependence of »2/5 of the dimensionless mean droplet diameter (D/D o) on the dimensionless liquid flow rate (Q/Q o). At higher liquid flow rate, the optical resolution of the droplets is improved compared to lower volumetric flow rates, thus facilitating analyses with the ADM program. The approach outlined herein provides a guideline for characterization and implementation of the FB technology in high-pressure applications.

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Development and characterization of a Flow Focusing multi nebulization system for sample introduction in ICP-based spectrometric techniques

Cited by 20 publications

References 36 publications

Atomic Spectroscopy: A Review

Atomic Spectroscopy: A Review

GGR Biennial Review: Atomic Absorption, Inductively Coupled Plasma‐Atomic Emission Spectrometry, Neutron Activation Analysis and X‐Ray Fluorescence Spectrometry Review for 2008–2009

Visualization and size-measurement of droplets generated by Flow Blurring® in a high-pressure environment

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