Measuring heavy metal ions in water using nature existed microalgae as medium based on terahertz technology

Yongni, S.; Wang, Y.; Zhu, D.; Xiong, X.; Tian, Z.; Balakin, A.V.; Shkurinov, A.P.; Xu, D.; Wu, Y.; Peng, Y.; Zhu, Y.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 июня 2022 г.

Авторы: Yongni Shao, Wang Yutian, Zhu Di, Xiong Xin, Tian Zhengan, Balakin Alexey V., Shkurinov Alexander P., Xu Duo, Wu Yimei, Peng Yan, Zhu Yiming
Журнал: Journal of Hazardous Materials
Том: 435
Год издания: 2022
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Первая страница: 129028
DOI: 10.1016/j.jhazmat.2022.129028
Аннотация: Heavy metal pollution in water seriously affects human health. The disadvantages of traditional metal ion detection methods involve long and cumbersome chemical pretreatment in the early stage, and large volume of samples. In this study, microalgae were used as the medium, and terahertz spectroscopy technology was employed to collect the changes of material components in it, so as to deduce the types and concentrations of heavy metal pollution in water. Through the partial least square(PLS), we establish the prediction model of heavy metal concentration, and the results show that the best detection time for Pb2+ is 6 h and Ni2+ is 18 h. The principal component analysis(PCA) shows that β-carotene is the most affected substance. Afterward we collect five real surface waters in East China and verify that the judgment accuracy of Pb2+ and Ni2+ are 100% and 93.2% respectively. The results indicate that the time is shorter than the traditional pretreatment time from more than 20–6 h, the sample volume is reduced from 50 mL to 10 mL, the detection accuracy is improved from 10 ng/mL to 1 ng/mL. In a word, we provide a new fast and real-time method for biological monitoring of heavy metal pollution in water.
Добавил в систему: Балакин Алексей Вячеславович

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Measuring heavy metal ions in water using nature existed microalgae as medium based on terahertz technologyстатья

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