基于CuS负载Pt纳米花的类过氧化物酶活性抑制检测银离子

来源 :分析试验室 | 被引量 : 0次 | 上传用户：caoyongtao1985

【摘要】

：

制备了CuS负载的Pt纳米花(CuS-Pt)并研究了金属离子对其类过氧化物酶活性的影响.CuS-Pt纳米花能高效地催化H2O2氧化3,3′,5,5′-四甲基联苯胺(TMB)使反应溶液由无色变为深蓝色,在652 nm处产生一个明显的吸收峰.研究发现,众多金属离子中只有Ag+能够有效抑制CuS-Pt纳米花的类酶催化活性,从而使溶液颜色变浅并在652 nm处产生减色效应.在一定浓度范围内,这种抑制作用与Ag+浓度呈现良好的线性关系.基于该原理构建了一种检测Ag+含量的比色分析新方法,检测线性范围为200～600

【作者】

：

谭鑫谭娟刘颜王燚

【机构】

：

重庆师范大学化学学院,绿色合成与应用重庆市重点实验室,重庆401331

【出处】

：

分析试验室

【发表日期】

：

2021年11期

【关键词】

：

纳米酶铂纳米粒子比色分析银离子

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基于CuS负载Pt纳米花的类过氧化物酶活性抑制检测银离子

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