An Efficient and Inexpensive Ultrasonic Nebulizer for Atomic Spectrometry

Jin, Qinhan; Zhu, Cheng; Brushwyler, K. R.; Hieftje, Gary M.

doi:10.1366/0003702904085570

Cited by 39 publications

(6 citation statements)

References 10 publications

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“…In this manner two independent solutions are pumped simultaneously onto the surface of a quartz piezoelectric transducer (1.65 MHz resonant frequency, with a forward power of 80 W) at a flow rate of 40 μL min -1 using a Perimax12 peristaltic pump (SPETEC, Erding, Germany), where they were effectively mixed and dispersed into droplets of approximately 2.0 -2.5 μm in mean droplet diameter (0.1 -4.5 μm size distribution; a very fine aerosol is formed as a result of the interaction between ultrasonic waves and the liquid film). 18 The ultrasonic nebulizer is directly connected to the cyclonic glass spray chamber. The transducer quartz plate and radiator were cooled with a closed circuit water cooling system; the system was used without desolvation.…”

Section: Ultrasonic Nebulization-ultraviolet/visible Light Irradiatiomentioning

confidence: 99%

Evaluation of Five Phase Digitally Controlled Rotating Field Plasma Source for Photochemical Mercury Vapor Generation Optical Emission Spectrometry

et al. 2015

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A new sensitive method for total mercury determination in reference materials using a 5-phase digitally controlled rotating field plasma source (RFP) for optical emission spectrometry (OES) was developed. A novel synergic effect of ultrasonic nebulization (USN) and ultraviolet-visible light (UV-Vis) irradiation when used in combination was exploited for efficient Hg vapor generation. UV-and Vis-based irradiation systems were studied. It was found that the most advantageous design was an ultrasonic nebulizer fitted with a 6 W mercury lamp supplying a microliter sample to a quartz oscillator, converting liquid into aerosol at the entrance of the UV spray chamber. Optimal conditions involved using a 20% v/v solution of acetic acid as the generation medium. The mercury cold vapor, favorably generated from Hg 2+ solutions by UV irradiation, was rapidly transported into a plasma source with rotating field generated within the five electrodes and detected by digitally controlled rotating field plasma optical emission spectrometry (RFP-OES). Under optimal conditions, the experimental concentration detection limit for the determination, calculated as the concentration giving a signal equal to three times the standard deviation of the blank (LOD, 3σblank criterion, peak height), was 4.1 ng mL -1 . The relative standard deviation for samples was equal to or better than 5% for liquid analysis and microsampling capability. The methodology was validated through determination of mercury in three certified reference materials (corresponding to biological and environmental samples) (NRCC DOLT-2, NRCC PACS-1, NIST 2710) using the external aqueous standard calibration techniques in acetic acid media, with satisfactory recoveries. Mercury serves as an example element to validate the capability of this approach. This is a simple, reagent-saving, cost-effective and green analytical method for mercury determination.

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Section: Ultrasonic Nebulization-ultraviolet/visible Light Irradiatiomentioning

confidence: 99%

Evaluation of Five Phase Digitally Controlled Rotating Field Plasma Source for Photochemical Mercury Vapor Generation Optical Emission Spectrometry

et al. 2015

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“…However, over the past decades, only a few ultrasonic nebulizer designs have been developed for use with microwave induced plasmaoptical emission spectrometry (MIP-OES). [23][24][25] Very recently, the feasibility of the use of the NOVA-2 dual-flow ultrasonic nebulizer for the determination of Se, Sb and As in waters by hydride generation ICP-OES has been investigated. 26 Similarly, Matusiewicz and Slachci nski 27 used the commercial ultrasonic nebulizer NOVA DUO (dual-mode capillary system) for the simultaneous determination of transition (Au, Ag, Cd, Cu, Mn, Ni, Pb, Zn) and noble (Pd, Pt, Rh) volatile metal species by MIP-OES.…”

Section: Introductionmentioning

confidence: 99%

“…The nebulizer is the modified NOVA-2 ultrasonic nebulizer having three solution channels. 23 Those channels were used for delivery of the borohydride solution, sample solution and acidic solution, respectively. The integrated internal water-cooled ultrasonic nebulizer was operated at 1.65 MHz with a forward power of 80 W. The ultrasonic nebulizer used consisted mainly of an electronic unit and a nebulization unit.…”

Section: Chemical Vapor Generation Three Capillary Mode Sample Introd...mentioning

confidence: 99%

Method development for simultaneous multi-element determination of transition (Au, Ag) and noble (Pd, Pt, Rh) metal volatile species by microwave induced plasma spectrometry using a triple-mode microflow ultrasonic nebulizer and in situ chemical vapor generation

Matusiewicz

Ślachciński

2010

J. Anal. At. Spectrom.

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The analytical potential of a coupled continuous-microflow ultrasonic nebulizer triple-mode micro capillary system (m-USN/TCS)-Ar/He mixed gas microwave induced plasma-optical emission spectrometry (MIP-OES) has been evaluated for the purpose of determination of metal volatile species (Au, Ag, Pd, Pt, Rh). An extremely short reaction time between sample, acid and reductant and a rapid separation of the reaction products is obtained by mixing the sample, acid and the sodium borohydride reductant solution at the quartz oscillator, converting liquids into aerosol at the entrance to the spray chamber. A univariate approach and simplex optimization procedure was used to achieve optimized conditions and derive analytical figures of merit. Results showed that the analytical performance of the new system was superior to that of ultrasonic nebulizer dual-mode capillary system. Analytical performance of the ultrasonic nebulization system was characterized by determination of the limits of detection (LODs) and precision (RSDs) with the m-USN/TCS observed at a 15 mL min À1 flow rate. The experimental concentration detection limits for simultaneous determination, calculated as the concentration giving a signal equal to three times of the standard deviation of the blank (LOD, 3s blank criterion, peak height) were 1.2, 1.5, 1.1, 2.9 and 1.8 ng mL À1 for Au, Ag, Pd, Pt and Rh, respectively. The method offers relatively good precision (RSD ranged from 7 to 8%) for liquid analysis and microsampling capability. The accuracy of the method was verified using certified reference materials (TORT-1, NIST 2710, NIST 1643e, IAEA-336) and by the aqueous standard calibration technique. The measured contents of elements in reference materials were in satisfactory agreement with the certified value (Ag) and added amounts (Au, Pd, Pt, Rh).

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“…Jin et al [3] promoted a batch-type ultrasonic nebulizer of this kind. The USN is satisfactory for short-term operation.…”

Section: Introductionmentioning

confidence: 99%

An inexpensive continuous-type ultrasonic nebulizer for atomic spectrometry

Jin

Liang

Huan

et al. 2000

Lab. Robotics Autom.

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An Efficient and Inexpensive Ultrasonic Nebulizer for Atomic Spectrometry

Cited by 39 publications

References 10 publications

Evaluation of Five Phase Digitally Controlled Rotating Field Plasma Source for Photochemical Mercury Vapor Generation Optical Emission Spectrometry

Evaluation of Five Phase Digitally Controlled Rotating Field Plasma Source for Photochemical Mercury Vapor Generation Optical Emission Spectrometry

Method development for simultaneous multi-element determination of transition (Au, Ag) and noble (Pd, Pt, Rh) metal volatile species by microwave induced plasma spectrometry using a triple-mode microflow ultrasonic nebulizer and in situ chemical vapor generation

An inexpensive continuous-type ultrasonic nebulizer for atomic spectrometry

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