Trace metal determination in natural waters by automated solid phase extraction system and ICP-MS: The influence of low level Mg and Ca

Wang, Bo–Shian; Lee, Chih-Ping; Ho, Tung‐Yuan

doi:10.1016/j.talanta.2014.04.077

Cited by 64 publications

(33 citation statements)

References 25 publications

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“…3(a) that the major product ions were 98 Mo 16 O2 + observed at m/z of 130 when O2 gas was used as the reaction gas, which agreed with an earlier report. 16 By contrast, the major product ions in Fig. 3 …”

Section: Removal Mechanism For O2 and Nh3 As The Reaction Gasmentioning

confidence: 92%

“…By contrast, when NH3 was used as the reaction gas, regeneration of 98 Mo 16 O + almost did not occur because there was not any provider for enough oxygen species in the ORC system. Effective removal of MoO interferences might be obtained by using H2 from the viewpoint of removing oxygen species in the ORC system.…”

Section: O2mentioning

confidence: 99%

“…Consequently, measurements of Cd in seawater are often carried out after chemical separation using solid phase extraction even in the present decade. [8][9][10][11][12][13][14][15][16][17][18][19] In recent years, a novel ICP-MS with tandem quadrupole mass spectrometers (QMS/QMS) and an octopole reaction cell (ORC) system has become commercially available, which provides efficient chemical removal of oxide species interferences. 20 At the same time, a high matrix introduction (HMI) unit permits the direct introduction of seawater into the ICP-MS without clogging of the cones.…”

Section: Introductionmentioning

confidence: 99%

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Direct Determination of Cadmium in Seawater by Standard Addition ICP-QMS/QMS with an ORC

Zhu

Itoh

2016

ANAL. SCI.

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A method for direct and precise determination of Cd in seawater by ICP-QMS/QMS was developed, where a high matrix introducing unit permitted the direct introduction of seawater without clogging the cones while the matrix effect of seawater was canceled by standard addition. NH3 gas was selected as the reaction gas for removing the MoO interferences with the measurement of Cd isotopes, effectively improving the signal to background ratio. The lower limit of detection obtained at 114 Cd was 0.0002 ng mL -1 , which is enough for the determination of Cd in natural seawater. The validity of the present method was confirmed by the analysis of two certified reference materials, i.e. NASS-5 and NASS-6, whose observed values of Cd concentration agreed with the certified values. The analytical figures of merit of the present method were comparable to or better than those reported for direct analysis of seawater.

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Section: Removal Mechanism For O2 and Nh3 As The Reaction Gasmentioning

confidence: 92%

Section: O2mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Direct Determination of Cadmium in Seawater by Standard Addition ICP-QMS/QMS with an ORC

Zhu

Itoh

2016

ANAL. SCI.

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“…Trace metals in the solution were separated from the salt matrix, preconcentrated, and measured using a sector field high-resolution inductively coupled plasma-mass spectrometry (Element XR, Thermo, USA) with an autosampler (ESI, SC-4, USA) coupled with a PEEK standard probe (Ho et al, 2010;Wang et al, 2014). More details are given in the supporting information.…”

Section: Nutrients and Trace Metals Release From The Aerosolsmentioning

confidence: 99%

Airborne Microbes Contribute to N₂ Fixation in Surface Water of the Northern Red Sea

Rahav

Paytan

Mescioglu

et al. 2018

Geophysical Research Letters

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Desert dust storms are frequent in the Northern Red Sea region, providing nutrients (i.e., PO4) and trace‐metals (i.e., Fe) that may stimulate dinitrogen (N2) fixation. Dust also carries a high diversity of airborne microbes (bacteria and archaea), including diazotrophs, that may remain viable during transport and upon deposition. Here we evaluate the impact of atmospheric deposition and its associated airborne diazotrophs on N2 fixation in the surface water of the low‐nutrient Northern Red Sea, using mesocosm bioassay experiments. We compared the chemical (nutritional) and sole airborne microbial impact of aerosol additions on N2 fixation using “live‐dust” (release nutrients/trace metals and viable airborne microorganisms) and “UV‐killed dust” (release only chemicals). Airborne diazotrophy accounted for about one third of the measured N2 fixation (0.35 ± 0.06 nmol N · L−1 · day−1 and 0.29 ± 0.06 nmol N · L−1 · day−1, for “February 2017” and “May 2017,” “live‐dust” additions, respectively). Two nifH sequences related to cluster III diazotrophs were amplified from the dust samples, consistent with the N2 fixation measurement results. We postulate that the deposition of viable airborne diazotrophs may enhance N2 fixation, especially in marine provinces subjected to high aerosol loads. We speculate that the relative contribution of airborne N2 fixation may increase in the future with the predicted increase in dust deposition.

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“…Among these methods, SPE is considered the most effective due to its repeatability and suitability for various heavy metals . The combination of SPE and ICP‐MS has been recently reported .…”

Section: Introductionmentioning

confidence: 99%

Combination of Syringe–Solid Phase Extraction with Inductively Coupled Plasma Mass Spectrometry for Efficient Heavy Metals Detection

Habila

ALOthman

El‐Toni

et al. 2016

CLEAN Soil Air Water

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This work aimed to combine solid phase extraction (SPE) with inductively coupled plasma mass spectrometry for the determination of multi-elements (Pb, Cd, and Zn) simultaneously. This combination allows the purification of the solution by minimizing matrix effects, the separation of the analytes and a fast determination of multiple elements (Pb, Cd, and Zn) in seconds. A syringe-solid phase extraction (SYRINGE-SPE) method was developed based on adsorption/desorption of metals onto amino-functionalized hollow core mesoporous shell silica spheres (NH 2 -HCMSSs). The separation of NH 2 -HCMSSs from aqueous phase was assessed by capping the syringe with 0.2-mm filter. The results showed that the quantitative recovery of analytes was obtained at pH 6 by elution with 3 M HNO 3 . The developed method is applicable in the presence of different coexisting ions. The limit of detection was 0.021, 0.004, and 0.007 mg L À1 for Pb(II), Cd(II), and Zn(II) ions, respectively, whereas the limit of detection of the instrument without combination with the SYRINGE-SPE was 0.699, 0.123, and 0.24 mg L À1 for Pb(II), Cd(II), and Zn(II) ions, respectively. The relative standard deviations were 7.4, 6.2, and 5.4% for Pb(II), Cd(II), and Zn(II), respectively. The method was validated using corn bran (8433) certified reference material. The method was successfully applied for the determination of Pb(II), Cd(II), and Zn(II) in bottled water, tap water, beet, radish, carrot, potato, sweet potato, and turnip samples.Abbreviations: AAS, atomic absorption spectrometry; EDS, energydispersive X-ray spectroscopy; FTIR, Fourier transform infrared; ICP-MS, inductively coupled plasma mass spectrometry; LOD, limit of detection; LOQ, limit of quantification; NH 2 -HCMSS, amino-functionalized hollow core mesoporous shell silica sphere; SEM, scanning electron microscopy; SPE, solid-phase extraction; SYRINGE-SPE, syringe-solid phase extraction; TGA, thermal gravimetric analysis 720

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Trace metal determination in natural waters by automated solid phase extraction system and ICP-MS: The influence of low level Mg and Ca

Cited by 64 publications

References 25 publications

Direct Determination of Cadmium in Seawater by Standard Addition ICP-QMS/QMS with an ORC

Direct Determination of Cadmium in Seawater by Standard Addition ICP-QMS/QMS with an ORC

Airborne Microbes Contribute to N₂ Fixation in Surface Water of the Northern Red Sea

Combination of Syringe–Solid Phase Extraction with Inductively Coupled Plasma Mass Spectrometry for Efficient Heavy Metals Detection

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Trace metal determination in natural waters by automated solid phase extraction system and ICP-MS: The influence of low level Mg and Ca

Cited by 64 publications

References 25 publications

Direct Determination of Cadmium in Seawater by Standard Addition ICP-QMS/QMS with an ORC

Direct Determination of Cadmium in Seawater by Standard Addition ICP-QMS/QMS with an ORC

Airborne Microbes Contribute to N2 Fixation in Surface Water of the Northern Red Sea

Combination of Syringe–Solid Phase Extraction with Inductively Coupled Plasma Mass Spectrometry for Efficient Heavy Metals Detection

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Airborne Microbes Contribute to N₂ Fixation in Surface Water of the Northern Red Sea