Solution cathode glow discharge induced vapor generation of iodine for determination by inductively coupled plasma optical emission spectrometry

Zhu, Zhenli; He, Qian; Qin, Shuai; Zheng, Huajun; Hu, Shenghong

doi:10.1039/b927298d

Cited by 45 publications

(22 citation statements)

References 33 publications

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“…Solution cathode glow discharge (SCGD) was used to induce advanced redox processes for the generation of iodine vapour (Zhu et al . ). The SCGD produces highly reactive chemical species, eliminating the need for redox reagents and minimising contamination.…”

Section: Advances In Plasma Source Emission Spectroscopy (Contributiomentioning

confidence: 97%

GGR Biennial Critical Review: Analytical Developments Since 2010

Wiedenbeck

Bugoi

Duke

et al. 2012

Geostandard Geoanalytic Res

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Advances in the chemical and isotopic characterisation of geological and environmental materials can often be ascribed to technological improvements in analytical hardware. Equally, the creation of novel methods of data acquisition and interpretation, including access to better reference materials, can also be crucial components enabling important breakthroughs. This biennial review highlights key advances in either instrumentation or data acquisition and treatment, which have appeared since January 2010. This review is based on the assessments by scientists prominent in each of the given analytical fields; it is not intended as an exhaustive summary, but rather provides insight from experts of the most significant advances and trends in their given field of expertise. In contrast to earlier reviews, this presentation has been formulated into a unified work, providing a single source covering a broad spectrum of geoanalytical techniques. Additionally, some themes that were not previously emphasised, in particular thermal ionisation mass spectrometry, accelerator‐based methods and vibrational spectroscopy, are also presented in detail.

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Section: Advances In Plasma Source Emission Spectroscopy (Contributiomentioning

confidence: 97%

GGR Biennial Critical Review: Analytical Developments Since 2010

Wiedenbeck

Bugoi

Duke

et al. 2012

Geostandard Geoanalytic Res

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“…The background electrolyte can affect the Hg vapor generation efficiency according to previous literature. 15 Thus, it's essential to investigate the effect of the acid anion on the mercury vapor generation to sustain high effective discharge. Three mercury standard solutions (concentration of 10 mgL -1 ) were adjusted to a PH of 1.0 with the acids: Sulfuric acid, hydrochloric acid and nitric acid, passed them into the discharge system, respectively.…”

Section: Effect Of the Acid Anionmentioning

confidence: 99%

Online mercury determination by laser-induced breakdown spectroscopy with the assistance of solution cathode glow discharge

Zheng

Liu

Wang

et al. 2015

J. Anal. At. Spectrom.

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The trace mercury in aqueous solution is determined by laser-induced breakdown spectroscopy (LIBS) under the assistance of solution cathode glow discharge (SCGD) system. The aqueous solution is converted to gas phase using high voltage DC discharge, and then the generated mercury vapor is cooled by gas-liquid separator to improve the concentration of mercury. Finally, a 1064 nm wavelength Nd: YAG laser is used to produce plasma. In the present experiment, the characteristic spectral line of Hg I 253.65 nm is selected for analysis, under the optimal conditions of LIBS, the influences of the acid anion, discharge current, sample flow rate and carrier gas flow rate are investigated. The temporal behavior of the electron temperature and electron number density are also investigated, the results show that the electron temperature decreases from about 10900 K to 8800 K with delay time from 200 ns to 6 μs, and the electron number density is on the orders of 10 17 and 10 18 cm -3 , and it decreases with delay time. The analytical performances of this method are evaluated under optimized conditions, the calibration curve of Hg is plotted based on the different concentrations measurement results, and the detection limit (LOD) of Hg is calculated to be 0.36 mgL -1 . By using this experimental configuration, the detection limit and sensitivity of Hg are improved to some extent. This method provides an alternative analytical method for measurement of trace mercury in water.

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“…This has been demonstrated in the direct determination of mercury in ethanol biofuel or white vinegar [102,103]. A novel VG technique for iodine determination by ICP-OES was developed based on solution cathode glow discharge induced advanced redox processes of iodide and iodate [104]. The in-situ produced highly reactive chemical species in the discharge eliminated the need for externally supplied sources of any redox reagents.…”

Section: Vapor Generationmentioning

confidence: 99%

Recent advances in flow-based sample pretreatment for the determination of metal species by atomic spectrometry

Wang

2013

Chin. Sci. Bull.

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During the last few years, various flow-based separation/preconcentration methodologies have gained pertinent novel advances and exhibited powerful capability in the field of sample pretreatment and their hyphenation with detection by atomic spectrometry. The present mini-review presents and discusses the progress of flow-based sample processing approaches commonly used for the assay of trace elemental species with detection by atomic spectrometry, including preliminary sample pretreatment, solid phase extraction (including solid phase microextraction), liquid-liquid extraction, vapor generation and dialysis techniques. Special emphasis has been paid on the novel applications and analytical procedures hyphenated with atomic spectrometry. The future perspectives of flow-based sample pretreatment protocols in the determination of trace elements and their speciation are also discussed.

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Solution cathode glow discharge induced vapor generation of iodine for determination by inductively coupled plasma optical emission spectrometry

Cited by 45 publications

References 33 publications

GGR Biennial Critical Review: Analytical Developments Since 2010

GGR Biennial Critical Review: Analytical Developments Since 2010

Online mercury determination by laser-induced breakdown spectroscopy with the assistance of solution cathode glow discharge

Recent advances in flow-based sample pretreatment for the determination of metal species by atomic spectrometry

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