Real-time monitoring and determination of Pb in a single airborne nanoparticle

Suzuki, Yoshinari; Sato, Hikaru; Hikida, Shimpei; Nishiguchi, Kohei; Furuta, Naoki

doi:10.1039/c004790b

Cited by 32 publications

(39 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…6,7 We have reported the use of a GED to determine Pb in a single particle of APM. 8 However, during real-time monitoring, we found that accurate results could not be obtained for elements that have oxides with high melting points. 9 Elements in particles introduced into the ICP are measured after melting, vaporization, atomization, and ionization, and the inaccuracies during real-time monitoring have been attributed to incomplete vaporization, atomization, and ionization in the initial radiation zone of the ICP.…”

Section: Introductionmentioning

confidence: 79%

“…The sample-introduction efficiency of the nebulizer was constant regardless of the elements, as confirmed in our previous study. 8 To calculate the sample-introduction efficiency of the ultrasonic nebulizer, we introduced a Cr carbonyl complex standard gas into the ICPMS by means of a metal standard gas generator (J-Science Lab Co.) at a Ar flow rate of 0.05 L min -1 . The sample-introduction efficiency of the ultrasonic nebulizer was calculated before each experiment, and was determined to be 2 -3%.…”

Section: Calibrationmentioning

confidence: 99%

See 1 more Smart Citation

Acceleration of Vaporization, Atomization, and Ionization Efficiencies in Inductively Coupled Plasma by Merging Laser-Ablated Particles with Hydrochloric Acid Gas

2016

Self Cite

View full text Add to dashboard Cite

To accelerate the vaporization, atomization, and ionization efficiencies in laser ablation inductively coupled plasma mass spectrometry, we merged HCl gas with laser-ablated particles before introduction into the plasma, to convert their surface constituents from oxides to lower-melting chlorides. When particles were merged with HCl gas generated from a HCl solution at 200 C, the measured concentrations of elements in the particles were 135% higher on average than the concentrations in particles merged with ultrapure water vapor. Particle corrosion and surface roughness were observed by scanning electron microscopy, and oxide conversion to chlorides was confirmed by X-ray photoelectron spectroscopy. Under the optimum conditions, the recoveries of measured elements improved by 23% on average, and the recoveries of elements with high-melting oxides (Sr, Zr, and Th) improved by as much as 36%. These results indicate that vaporization, atomization, and ionization in the ICP improved when HCl gas was merged with the ablated particles.

show abstract

Section: Introductionmentioning

confidence: 79%

Section: Calibrationmentioning

confidence: 99%

Acceleration of Vaporization, Atomization, and Ionization Efficiencies in Inductively Coupled Plasma by Merging Laser-Ablated Particles with Hydrochloric Acid Gas

2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…Because of the absence of ambient air, O 3 , and NH 3 , the ICP can be operated at parameters commonly used in ICPMS. The mixed metal carbonyl gases of Cr(CO) 6 , Mo(CO) 6 , and W(CO) 6 used for the demonstration of the GPD-GED-ICPMS were produced by a metal standard gas generator (MSG 2 ) which was also developed by J-Science Labo. Co. Ltd. (Kyoto, Japan).…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

“…The present study demonstrates a novel gas to particle conversion-gas exchange technique for the direct analysis of metallic gases such as Cr(CO) 6 , Mo(CO) 6 , and W(CO) 6 by ICPMS, and the working principle, the reaction mechanism, and figures of merits are discussed.…”

mentioning

confidence: 99%

“…It is well-known that the analysis of metal carbonyl gases such as Ni(CO) 6 and Fe(CO) 6 in CO and other gases is very difficult because the gas sampling method such as impinger method using acids can not trap them as sufficient as necessary for quantification. 12−17 In order to overcome the limitation, we developed an effective sampling method which can trap the metal carbonyl gas in hydrochloric acid (HCl) in a vacuum cylinder.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Gas to Particle Conversion-Gas Exchange Technique for Direct Analysis of Metal Carbonyl Gas by Inductively Coupled Plasma Mass Spectrometry

Nishiguchi¹,

Utani²,

Günther

et al. 2014

Anal. Chem.

Self Cite

View full text Add to dashboard Cite

A novel gas to particle conversion-gas exchange technique for the direct analysis of metal carbonyl gas by inductively coupled plasma mass spectrometry (ICPMS) was proposed and demonstrated in the present study. The technique is based on a transfer of gas into particle, which can be directly analyzed by ICPMS. Particles from metal carbonyl gases such as Cr(CO)6, Mo(CO)6, and W(CO)6 are formed by reaction with ozone (O3) and ammonium (NH3) gases within a newly developed gas to particle conversion device (GPD). The reaction mechanism of the gas to particle conversion is based on either oxidation of metal carbonyl gas by O3 or agglomeration of metal oxide with ammonium nitrate (NH4NO3) which is generated by the reaction of O3 and NH3. To separate the reaction gases (remaining O3 and NH3) from the formed particles, a previously reported gas exchange device (GED) was used and the in argon stabilized analyte particles were directly introduced and measured by ICPMS. This new technique provided limits of detection (LOD) of 0.15 pL L(-1) (0.32 ng m(-3)), 0.02 pL L(-1) (0.07 ng m(-3)), and 0.01 pL L(-1) (0.07 ng m(-3)) for Cr(CO)6, Mo(CO)6, and W(CO)6, respectively, which were 4-5 orders of magnitude lower than those conventional applied for detecting these gases, e.g., gas chromatography with electron captured detector (GC-ECD) as well as Fourier transform-infrared spectroscopy (FT-IR). The achieved LODs were also similar or slightly better than those for ICPMS coupled to GC. Since the gas to particle conversion technique can achieve the direct measurement of metal carbonyl gases as well as the removal of reaction and ambient gases from metal carbonyl gases, the technique is considered to be well suited to monitor gas quality in semiconductor industry, engine exhaust gases, and or waste incineration products.

show abstract

Real-time size discrimination and elemental analysis of gold nanoparticles using ES-DMA coupled to ICP-MS

Elzey

Tsai

et al. 2013

Anal Bioanal Chem

View full text Add to dashboard Cite

We report the development of a hyphenated instrument with the capacity to quantitatively characterize aqueous suspended gold nanoparticles (AuNPs) based on a combination of gas-phase size separation, particle counting, and elemental analysis. A customized electrospray-differential mobility analyzer (ES-DMA) was used to achieve real-time upstream size discrimination. A condensation particle counter and inductively coupled plasma mass spectrometer (ICP-MS) were employed as downstream detectors, providing information on number density and elemental composition, respectively, of aerosolized AuNPs versus the upstream size selected by ES-DMA. A gas-exchange device was designed and optimized to improve the conversion of air flow (from the electrospray) to argon flow required to sustain the ICP-MS plasma, the key compatibility issue for instrumental hyphenation. Our work provides the proof of concept and a working prototype for utilizing this construct to successfully measure (1) number- and mass-based distributions; (2) elemental compositions of nanoparticles classified by size, where the size classification and elemental analysis are performed within a single experiment; (3) particle concentrations in both solution (before size discrimination) and aerosol (after size discrimination) phases; and (4) the number of atoms per nanoparticle or the nanoparticle density.

show abstract

Real-time monitoring and determination of Pb in a single airborne nanoparticle

Cited by 32 publications

References 8 publications

Acceleration of Vaporization, Atomization, and Ionization Efficiencies in Inductively Coupled Plasma by Merging Laser-Ablated Particles with Hydrochloric Acid Gas

Acceleration of Vaporization, Atomization, and Ionization Efficiencies in Inductively Coupled Plasma by Merging Laser-Ablated Particles with Hydrochloric Acid Gas

Gas to Particle Conversion-Gas Exchange Technique for Direct Analysis of Metal Carbonyl Gas by Inductively Coupled Plasma Mass Spectrometry

Real-time size discrimination and elemental analysis of gold nanoparticles using ES-DMA coupled to ICP-MS

Contact Info

Product

Resources

About