吉林大学学报(地球科学版) ›› 2021, Vol. 51 ›› Issue (4): 1217-1223.doi: 10.13278/j.cnki.jjuese.20200031
朴云仙, 姚兰, 何凌志, 张彧
Piao Yunxian, Yao Lan, He Lingzhi, Zhang Yu
摘要: 为实现水环境中微囊藻毒素的高性能检测,利用农业废弃物合成了具导电性能的生物炭颗粒,并将其作为导电材料构建了对微囊藻毒素-LR具电化学免疫检测性能的生物模板电极。实验结果表明:该电极具有很好的电催化性能,在电解液中,能够在短时间(5 min)内有效识别微囊藻毒素-LR的存在;利用差分脉冲伏安法检测发现在0.0~5.0 nmol/L的检测范围内毒素浓度与响应电流值呈线性递减关系,且最低检测浓度为0.2 nmol/L。该电极对各类不相关分子及离子具有抗干扰能力,表明了该方法可应用于对微囊藻毒素-LR污染的快速、特异性检测。
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