頁籤選單縮合
題名 | Glyphosate Warning Beads=嘉磷塞警示凝珠 |
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作者 | 陳力騏; 侯詠德; 鄭宗記; 張桂禎; 謝博全; Chen, Richie L. C.; Hou, Yung-te; Cheng, Tzong-jih; Chang, Kuei-chen; Hsieh, Bo-chuan; |
期刊 | 中華民國雜草學會會刊 |
出版日期 | 20170600 |
卷期 | 38:1 2017.06[民106.06] |
頁次 | 頁13-18 |
分類號 | 433.85 |
語文 | eng |
關鍵詞 | 嘉磷塞; 褐藻膠; 銅離子; 電導; 基改作物; Glyphosate; Alginate; Cupric ion; Conductance; Genetically modified crops; |
中文摘要 | 本研究將2%褐藻酸鈉溶液滴入50 mM硫酸銅溶液用以製備直徑為3 mm的Cu(II)-褐藻膠凝珠,此凝珠吸收了銅離子後硬化且呈藍色。若溶液中含有濃度為mM或以上的除草劑成份-嘉磷塞,嘉磷塞將與凝珠中褐藻酸競爭螯合銅離子,藍色的Cu (II)-褐藻膠凝珠則於數十分鐘後退色並且結構崩解。以上過程也可以用電導量測予以即時觀測並量化。. |
英文摘要 | Cu (II)-alginate beads were prepared by dropping 2% sodium alginate solution into 50 mM cupric sulfate solution. The hydrogel beads (3mm in diameter) turned blue after absorbing cupric ions from the surrounding solution, and the blue beads were proven to be useful in sensing the existence of the Cu (II)-chelating glyphosate in herbicide formulations. Glyphosate will compete with alginate in chelating cupric ion; within tens of minutes, a Cu (II)-alginate bead lost its cupric ions (and therefore its blue color) and finally collapsed in a solution containing mM order of glyphosate. The process were also monitored and quantified by the change in conductance. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。