植物修复
萝卜
生物转化
化学
生物累积
恩诺沙星
苋菜
水生植物
环境化学
植物
食品科学
生物
环丙沙星
生物化学
水生植物
酶
抗生素
重金属
生态学
作者
Klaudia Stando,Michał Marian Grzybowski,Anna Byczek-Wyrostek,Sylwia Bajkacz
标识
DOI:10.1080/15226514.2023.2288898
摘要
Phytoremediation is a low-cost and sustainable green technology that uses plants to remove organic and inorganic pollutants from aquatic environments. The aim of this study was to investigate the phytoextraction, phytoaccumulation, and phytotransformation of three fluoroquinolones (FQs) (ciprofloxacin [CIP], enrofloxacin [ENF], and levofloxacin [LVF]) by Japanese radish (Raphanus sativus var. longipinnatus) and duckweed (Lemma minor). Determination of FQs and identification of their transformation products (TPs) were performed using ultra-high-performance liquid chromatography coupled with tandem mass spectrometry (UHPLC–MS/MS). Inter-tissue translocation of FQs in Japanese radish tissues depended on their initial concentration in the medium. CIP (IT = 14.4) and ENF (IT = 17.0) accumulated mainly in radish roots, while LVF in leaves (IT = 230.8) at an initial concentration of 10 µg g−1. CIP (2,104 ng g−1) was detected in the highest concentration, followed by ENF (426.3 ng g−1) and LVF (273.3 ng g−1) in the tissues of both plants. FQs' bioaccumulation factors were significantly higher for duckweed (1.490–18.240) than Japanese radish (0.027–0.103). The removal of FQs from water using duckweed was mainly due to their photolysis and hydrolysis than plant sorption. In the screening, analysis detected 29 FQ TPs. The biotransformation pathways of FQs are described in detail, and the factors that influence their formation are indicated.
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