Cu2＋ Detection with Gold Nanoparticles by Patterning Colorimetric Strips on a Filter Membrane Assembled in a Microfluidic Chip  

作　　者：刘颖昳 虞洁 陈雯雯 刘定斌 王卓 蒋兴宇 

机构地区：[1]CAS Key Lab for Biological Effects of Nanomaterials and Nanosafety,National Center for NanoScience and Technology,Beijing 100190,China

出　　处：《Chinese Journal of Chemistry》2012年第9期2047-2051,共5页中国化学（英文版）

摘　　要：We have developed a microfluidic chip for colorimetric CH2＋ detection. In this chip, it is facile to do colorimet- ric Cu2＋ detection based on gold nanoparticles. This method has a dynamic detection range from 0.75 to 50 lamol/L with only 20μL solution including detection reagents and sample. The result can be readout by naked eye and pho-tographed by digital cameras. With the help of image processing software, we could measure the RGB value and calculate the Blue/Red ratio for more accurate quantification. Tap water could be detected in this portable chip.We have developed a microfluidic chip for colorimetric CH2＋ detection. In this chip, it is facile to do colorimet- ric Cu2＋ detection based on gold nanoparticles. This method has a dynamic detection range from 0.75 to 50 lamol/L with only 20μL solution including detection reagents and sample. The result can be readout by naked eye and pho-tographed by digital cameras. With the help of image processing software, we could measure the RGB value and calculate the Blue/Red ratio for more accurate quantification. Tap water could be detected in this portable chip.

关 键 词：microfluidics gold nanoparticles COLORIMETRIC copper ion naked eye 

分 类 号：TP211.3[自动化与计算机技术—检测技术与自动化装置] TN407[自动化与计算机技术—控制科学与工程]