Application of synthetic benzoic acid technology in environmental radiocarbon monitoring
| Autor: | Fangdong Tang, He Linfeng, Weihai Zhuo, Zhao Chao, Bo Chen, Liangzi Wang, Bin Feng, Yiwen Liu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
China
Chromatography 010504 meteorology & atmospheric sciences Chemistry Health Toxicology and Mutagenesis Liquid scintillation counting General Medicine 010501 environmental sciences Benzoic Acid 01 natural sciences Pollution High-performance liquid chromatography Mass Spectrometry chemistry.chemical_compound Linear range Nuclear industry Radiation Monitoring Yield (chemistry) Nuclear Power Plants Environmental Chemistry Carbon Radioisotopes Waste Management and Disposal Chromatography High Pressure Liquid 0105 earth and related environmental sciences Benzoic acid |
| Zdroj: | Journal of environmental radioactivity. 216 |
| ISSN: | 1879-1700 |
| Popis: | Environmental radiocarbon (14C) monitoring is gaining importance in China due to the recent rapid development of the nuclear industry. In this study, synthetic benzoic acid samples with the fingerprint of environmental 14C were generated by using the synthesis method, and the specific activity of 14C was determined using the liquid scintillation counting (LSC) method. The ultra-performance liquid chromatography (UPLC) analysis was performed in chemical properties test and results showed that the mean assay and yield of synthetic benzoic acid were 91.8% ± 2.4% and 84.5% ± 2.0%, respectively. Under adopted LSC counting conditions, the minimum detectable activity (MDA) of 64 Bq/kg C was achieved in our laboratory. The method's linearity was examined using a series of spiked samples, along with the 14C-free samples. The results showed a wide linear range up to 2000 Bq/kg C. Reproducible results were obtained from three batches of experiments with deviations in the intra-group and inter-group of 0.38%–3.06% and 1.24%–3.55%, respectively. Long-term evaluation of the system was found to be very stable (over 5 months storage) with the relative standard deviations of |
| Databáze: | OpenAIRE |
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