Evaluation of solution anode glow discharge as a vapor generator in ICP-OES procedures: Application to highly sensitive determination of Cd and Hg

Cai, Zhaoqing; Wang, Zheng

doi:10.1016/j.aca.2022.339724

Cited by 21 publications

(10 citation statements)

References 39 publications

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“…Hg is a global health threat and causes impairments in the human nervous system (Karthikeyan et al, 2021). Many terrible diseases such as Minamata and Parkinson's disease are related to the overexposure and excessive accumulation of mercury (Cai and Wang, 2022). The International Codex Alimentarius Commission stipulates that the maximum residue limit for Cd in vegetables is 0.1 mg kg −1 , and China sets the limit for Hg at 0.01 mg kg −1 .…”

Section: Introductionmentioning

confidence: 99%

One-step synthesis of highly fluorescent carbon dots as fluorescence sensors for the parallel detection of cadmium and mercury ions

Tan

Wang

et al. 2022

Front. Chem.

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Cadmium (Cd2+) and mercury ions (Hg2+) are essential for the quality control of food samples because of their serious toxicity to human health, but the effective and simple strategy for their parallel detection remains challenging. In this paper, a rapid and simple parallel detection method for Cd2+ and Hg2+ was developed using carbon dots (CDs) as fluorescent sensors. A one-step hydrothermal method with a single precursor l-arginine as both the carbon and nitrogen sources was employed to prepare nitrogen-doped CDs (N-CDs). N-CDs exhibited a uniform particle size and excitation-independent fluorescence emission. The maximum emission wavelength of N-CDs was observed at 354 nm with the excitation wavelength at 295 nm. The quantum yield of N-CDs reached as high as 71.6% in water. By using sodium diphosphate and phytic acid as masking agents, the fluorescent sensor can be quenched by Cd2+ and Hg2+ in the linear range of 0–26.8 μM and 0–49.9 μM within 5 min. Other common ions in farm products showed no significant effect on the fluorescence intensity of the sensing system. The results demonstrated that the sensing system had good selectivity and sensitivity for Cd2+ and Hg2+. The detection limits for Cd2+ and Hg2+ were 0.20 and 0.188 μM, respectively. In addition, the fluorescent sensor had been successfully applied for the detection of Cd2+ and Hg2+ in fruits and vegetables, and the recoveries were 86.44–109.40% and 86.62–115.32%, respectively. The proposed fluorescent sensor provides a rapid, simple, and sensitive detection method for Cd2+ and Hg2+ in food samples and thus a novel quantitative detection method for heavy metal ions in foods.

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Section: Introductionmentioning

confidence: 99%

One-step synthesis of highly fluorescent carbon dots as fluorescence sensors for the parallel detection of cadmium and mercury ions

Tan

Wang

et al. 2022

Front. Chem.

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“…As shown in Table 1, the DL of this work was reduced by tens to hundreds of times compared with those of owing liquid anode (FLA)-APGD and ICP-AES methods without chemical vapor generation. The DL obtained by this proposed method was comparable to that of SAGD-ICP-OES, SCGD-ICP-AES and CVG-ICP-AES, [36][37][38][39] but the inherent defects of these instruments such as high energy consumption and large size still limit the development of their portability. In addition, the DL of SCGD microplasma induced vapor generation (MIVG)-APGD-OES was at the equivalent level of this work.…”

Section: Analytical Performancementioning

confidence: 71%

Ultra-sensitive determination of mercury by atmospheric pressure glow discharge atomic emission spectrometry coupled with cold vapor generation

Rong

Cai

et al. 2022

J. Anal. At. Spectrom.

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“…The recovery of a Ag spike was 102%. Cai and Wang 79 took a different approach with the aim of eliminating the need for CVG reagents and pneumatic nebulisation. They used a solution anode GD not as an emission source but as a vapour generator for the determination of Cd and Hg by ICP-AES.…”

Section: Analysis Of Soils Plants and Related Materialsmentioning

confidence: 99%

“…Microplasmas or discharges can also be used to produce volatile metal compounds. An anodic GD was developed 79 for the CVG of Cd and Hg in waters and sediment digests prior to ICP-AES detection. The LODs of 0.3 (Cd) and 0.2 (Hg) mg L −1 were improvements over those achievable with pneumatic nebulisation.…”

Section: Atomic Absorption Spectrometrymentioning

confidence: 99%

Atomic spectrometry update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2023

J. Anal. At. Spectrom.

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Evaluation of solution anode glow discharge as a vapor generator in ICP-OES procedures: Application to highly sensitive determination of Cd and Hg

Cited by 21 publications

References 39 publications

One-step synthesis of highly fluorescent carbon dots as fluorescence sensors for the parallel detection of cadmium and mercury ions

One-step synthesis of highly fluorescent carbon dots as fluorescence sensors for the parallel detection of cadmium and mercury ions

Ultra-sensitive determination of mercury by atmospheric pressure glow discharge atomic emission spectrometry coupled with cold vapor generation

Atomic spectrometry update – a review of advances in environmental analysis

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