Radioanalytical chemistry for nuclear forensics in China: Progress and future perspective

Liu, Yi; Shao, Xuepeng; Bu, Wenting; Qin, Zhen; Ni, Youyi; Wu, Fang; Yang, Chu‐Ting; Wang, Xiaolin

doi:10.1016/j.cclet.2022.03.016

Cited by 7 publications

(8 citation statements)

References 85 publications

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“…The procedures are complex if derivatization is used, and the analysis cost is low. However, the low detection sensitivity and high limit of detection (LOD) (10 À1 , even 10 1 μg/g (μg/mL), Li et al, 2022) lower the accuracy and precision of results (Li et al, 2007;Liu et al, 2020). TLC also has a simple procedure and low analysis cost but is only suitable for qualitative analysis.…”

Section: Effect Of Measurement Methods On Synthetic Antioxidantsmentioning

confidence: 99%

A review on losses and transformation mechanisms of common antioxidants

Zhang

Kuang

et al. 2023

J Americ Oil Chem Soc

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Antioxidants are considered to be one of the most effective ways to prevent and delay the rancidity of oils and fats, thus play an important role in the processing, packaging, and storage of oils, fats, and oleaginous foods. However, the losses of antioxidants inevitably occur while preventing the rancidity of oils and fats. In this work, the loss pathways and mechanisms of synthetic and natural antioxidants commonly used in oils, fats, and oleaginous foods systems during storage, use, and detection are critically reviewed. The discussion regarding the transformation of antioxidants or antioxidant models in various organic solvent systems is also covered as well as the fate, toxicities, and antioxidative activities of transformation products of antioxidants. At room temperature, antioxidants in oils and fats are mainly lost due to antioxidation with transformation products accumulated. Under thermal (heating and frying) condition, synthetic antioxidants are mainly lost due to volatilization, while natural antioxidants are mainly lost due to transformation. Under frying condition, adsorption also contributes to the losses of antioxidants. This review discusses some possible research directions regarding antioxidants applied in oils, fats and oleaginous foods, which is expected to benefit the use of antioxidants in food industry.

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Section: Effect Of Measurement Methods On Synthetic Antioxidantsmentioning

confidence: 99%

A review on losses and transformation mechanisms of common antioxidants

Zhang

Kuang

et al. 2023

J Americ Oil Chem Soc

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“…Although the Ar-ICP provides high ionization efficiency (close to 100%) for the sensitive measurements of all REEs, 43 polyatomic spectral interferences, such as oxide, can pose challenges in accurately quantifying REEs, for example, 139 La 16 O + , 150 Sm 16 O + , and 159 Tb 16 O + interfering with the measurement of 155 Gd + , 166 Er + and 175 Lu + , respectively. The CRC is a simpler and more effective method to solve these oxide interferences compared to other methods, such as mathematic correction, chemical separation, and high-resolution ICP-MS. [43][44][45] However, it should be noted that the use of a CRC in ICP-MS potentially reduces the sensitivity of the analyte.…”

Section: Comparison Of Sensitivities and Oxide Ratios Of Mun-icp-ms A...mentioning

confidence: 99%

“…10 Among these, ICP-MS is commonly preferred due to its multielement-analysis ability with high sensitivity and satisfactory anti-interference capabilities. 16 However, the conventional pneumatic nebulization (PN) sampling system used in an ICP-MS suffers from low sample introduction efficiency ( η ). 17 Therefore, enhancing the η is essential for achieving high sensitivity and accurate determination of REEs.…”

Section: Introductionmentioning

confidence: 99%

Sensitive and accurate determination of REEs using a high-efficiency miniaturized ultrasonic nebulization sampling system coupled with the inductively coupled plasma mass spectrometer

Dong,

Chen,

et al. 2023

J. Anal. At. Spectrom.

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“…Since the 1940s, Pu isotopes have been released into the environment by human nuclear activities such as the nuclear accidents in Chernobyl and Fukushima, presenting a threat to the ecosystem and human health due to their strong radioactivity and toxicity. The assessment of its mass amount and isotope ratios plays a significant role in some research fields such as reactor accident analysis, nuclear forensic and safeguard investigations, and environmental monitoring . However, in these cases, it appears as a challenge to accurately and rapidly measure the isotopic abundances of Pu at the trace level, and the strong radioactivity and toxicity of Pu as well as other actinides strengthened the demand for the analytical technique with high sensitivity and precision.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Graphene Oxide as a Thermal Ionization Enhancer for Plutonium in TIMS Measurement

Zhang

Chen

et al. 2023

Anal. Chem.

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Thermal ionization mass spectrometry (TIMS) has been extensively employed for the assessment of plutonium (Pu) isotopes in nuclear forensics and environmental monitoring. Recently, great efforts have been made to improve the ionization efficiency (IE) of Pu to achieve better accuracy and precision for trace-level analysis. Herein, the thermal ionization enhancement effect for plutonium of graphene oxide (GO) was investigated and the corresponding mechanism was discussed. The GO layers were homogeneously mounted on the filament’s central surface to promote pg-level Pu ion emission. With the excellent structural property of GO, a greatly promoted ionization efficiency of 0.44% for Pu was obtained, and the initial ionization temperature for Pu was remarkably reduced from 1610 to 1390 °C. Average boosts in IE compared to the classical double-filament mode and graphite-loaded single-filament mode were 1640 and 520%, respectively. The analytical accuracy and precision based on the GO-loaded single-filament mode were validated using Pu isotopic certified reference materials. This work demonstrates the excellent property of GO as an ion source additive for Pu ionization, as it provided an interface for the promotion of energy transfer and Pu carbide formation. The operation of GO loading is quite simple and can be finished within 5 min. This rapid filament carburization approach has great potential for improving the measurement precision of trace-level plutonium isotopes and can be applied in nuclear safeguards, nuclear forensics, and environmental monitoring.

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Radioanalytical chemistry for nuclear forensics in China: Progress and future perspective

Cited by 7 publications

References 85 publications

A review on losses and transformation mechanisms of common antioxidants

A review on losses and transformation mechanisms of common antioxidants

Sensitive and accurate determination of REEs using a high-efficiency miniaturized ultrasonic nebulization sampling system coupled with the inductively coupled plasma mass spectrometer

Evaluation of Graphene Oxide as a Thermal Ionization Enhancer for Plutonium in TIMS Measurement

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