漳州师范学院学报：自然科学版
漳州師範學院學報：自然科學版
장주사범학원학보：자연과학판
Journal of ZhangZhou Teachers College（Natural Science)
2012年
1期
64-70
,共7页
Cr(Ⅵ)%非聚集比色传感器%金纳米棒
Cr(Ⅵ)%非聚集比色傳感器%金納米棒
Cr(Ⅵ)%비취집비색전감기%금납미봉
Cr (VI)%gold nanorod%non-aggregation colorimetric sensor
基于Cr（Ⅵ）的氧化性对金纳米棒（GNRs）的轴端产生强的蚀刻作用及其引起的溶液颜色变化,开发了一种测定痕量Cr（Ⅵ）的非聚集比色传感器。该比色传感器线性范围为0.1μM-20μM,检出限为8.8×10-8M,除了Cu2＋和Fe3＋加入氨水可消除铁与铜的干扰外,常见的离子不干扰。本方法用于水体中Cr（Ⅵ）的比色检测,其结果与等离子体-质谱法相吻合。同时,探讨了非聚集比色传感测定Cr（Ⅵ）的机理
基于Cr（Ⅵ）的氧化性對金納米棒（GNRs）的軸耑產生彊的蝕刻作用及其引起的溶液顏色變化,開髮瞭一種測定痕量Cr（Ⅵ）的非聚集比色傳感器。該比色傳感器線性範圍為0.1μM-20μM,檢齣限為8.8×10-8M,除瞭Cu2＋和Fe3＋加入氨水可消除鐵與銅的榦擾外,常見的離子不榦擾。本方法用于水體中Cr（Ⅵ）的比色檢測,其結果與等離子體-質譜法相吻閤。同時,探討瞭非聚集比色傳感測定Cr（Ⅵ）的機理
기우Cr（Ⅵ）적양화성대금납미봉（GNRs）적축단산생강적식각작용급기인기적용액안색변화,개발료일충측정흔량Cr（Ⅵ）적비취집비색전감기。해비색전감기선성범위위0.1μM-20μM,검출한위8.8×10-8M,제료Cu2＋화Fe3＋가입안수가소제철여동적간우외,상견적리자불간우。본방법용우수체중Cr（Ⅵ）적비색검측,기결과여등리자체-질보법상문합。동시,탐토료비취집비색전감측정Cr（Ⅵ）적궤리
A non-aggregation based label free colorimetric sensor for the detection of Cr （VI） was has been developed based on the strong oxidization of Cr （VI） enables it to etch gold nanorods （GNRs） selectively at tips and colour change of the solution. The linear range and the limits of detection for the Cr （VI） are 0.10-20.0 pM and 8.8 ×10^4 M, respectively. The proposed colorimetric sensor has been applied to the detection of Cr （VI） in drinking water and sea water, and the results consisting with those obtained by inductively coupled plasma mass spectroscopy （ICP-MS）. Moreover, the mechanism of colorimetric sensor for the detection of Cr （VI） was also discussed.
