Nuclear Research Centre of Birine, P.O. Box 180, Ain Oussera, 17200, Djelfa, Algeria; Chemistry Department, University of Hamma Lakhdar El-Oued, P.O. Box 789, 39000, Algeria.
Nuclear Research Centre of Birine, P.O. Box 180, Ain Oussera, 17200, Djelfa, Algeria.
Appl Radiat Isot. 2020 May;159:109099. doi: 10.1016/j.apradiso.2020.109099. Epub 2020 Feb 26.
In Algeria, Data and studies on the non-metal trace element selenium (Se) are presently lacking, therefore, the aim of this investigation is to provide new data on (Se) element via its determination for the first time from Mentha pulegium L. plant. The plant samples were collected in summer of 2012 from Ain-Oussera region, Djelfa province, Algeria; they were dried and powdered. After the neutron irradiation, the samples were digested using high oxidative reagents including HSO, HNO, HO and HCl. The end of this process gave two phases, organic and aqueous discard phase. By using a separating funnel, the organic phase was transferred into a vial in order to measure their induce radionuclide Se using gamma-ray spectrometer. A non-chromatographic and sensitive analytical technique RNAA (Radiochemical Neutron Activation Analysis), was applied in this investigation due to its great significant minor systematic error. Results were determined using two distinguish calculation methods, relative-RNAA and k-RNAA, the findings were quite significant, whereas, the average separation yield was about 85% for both calculation methodologies. Moreover, (Se) concentration obtained from M. pulegium L., is close to the minimal FAO (Food and Agriculture Organization of the United Nations) recommended consumption.
在阿尔及利亚，目前缺乏关于微量元素硒（Se）的资料和研究，因此，本次调查的目的是首次从 Mentha pulegium L. 植物中测定（Se）元素，提供新的数据。2012 年夏季，在阿尔及利亚杰勒法省的艾因-乌塞拉地区采集了植物样本，将其干燥并粉碎。在进行中子辐照后，使用包括 HSO4、HNO3、H2O2 和 HCl 在内的高氧化性试剂对样品进行消解。该过程结束后，会得到有机相和水相两种相。通过使用分液漏斗，将有机相转移到小瓶中，以便使用伽马射线光谱仪测量其放射性核素硒。由于具有重要的小系统误差，本研究应用了非色谱灵敏分析技术 RNAA（放射化学中子活化分析）。结果使用两种不同的计算方法确定，相对 RNAA 和 k-RNAA，结果非常显著，而两种计算方法的平均分离产率均约为 85%。此外，从 M. pulegium L.中获得的（Se）浓度接近联合国粮食及农业组织（FAO）推荐的最低摄入量。
