CAJ | 학술논문

一种基于铜氨络离子催化氧化金纳米棒的传感器针对 Cu2+实现分析检测.对金纳米棒的刻蚀过程,导致在金纳米棒长径比的变化,引起纵向表面等离子体共振吸收峰的蓝移和溶液颜色的变化.文章报道的无标记 Cu2+纳米比色传感器具有较高的灵敏度.此传感器具有较好的灵敏度,实现 Cu2+在3×10-8~5×10-7 M 范围内的可视化检测.最低检出限为2.7 nM.
일충기우동안락리자최화양화금납미봉적전감기침대 Cu2+실현분석검측.대금납미봉적각식과정,도치재금납미봉장경비적변화,인기종향표면등리자체공진흡수봉적람이화용액안색적변화.문장보도적무표기 Cu2+납미비색전감기구유교고적령민도.차전감기구유교호적령민도,실현 Cu2+재3×10-8~5×10-7 M 범위내적가시화검측.최저검출한위2.7 nM.
A new method based on the fact that copper (Ⅱ) tetra-ammine complex catalytic oxidizing gold nanorods (GNRs) in the S2O32--leaching system has been developed for the determination of Cu2+ in aqueous solution. The etching procedure would lead to a dramatic decrease of the GNRs in length but little in diameter, causing the longitudinal surface Plasmon resonance (LSPR) absorption blue shifts and solution color changed. The sensor possessed a surprising sensitivity which allowed the clear visual detection of Cu2+ ion ranging from 3×10-8 to 5×10-7 M, with a limit of detection 2.7 nM.