典型文献
Carbon dots derived from Poria cocos polysaccharide as an effective"on-off"fluorescence sensor for chromium(Ⅵ)detection
文献摘要：
Chromium is a harmful contaminant showing mutagenicity and carcinogenicity.Therefore,detection of chromium requires the development of low-cost and high-sensitivity sensors.Herein,blue-fluorescent carbon quantum dots were synthesized by one-step hydrothermal method from alkali-soluble Poria cocos polysaccharide,which is green source,cheap and easy to obtain,and has no pharmacological ac-tivity due to low water solubility.These carbon quantum dots exhibit good fluorescence stability,water solubility,anti-interference and low cytotoxicity,and can be specifically combined with the detection of Cr(Ⅵ)to form a non-fluorescent complex that causes fluorescence quenching,so they can be used as a label-free nanosensor.High-sensitivity detection of Cr(Ⅵ)was achieved through internal filtering and static quenching effects.The fluorescence quenching degree of carbon dots fluorescent probe showed a good linear relationship with Cr(Ⅵ)concentration in the range of 1-100 μM.The linear equation was F0/F=0.9942+0.01472[Cr(Ⅵ)](R2=0.9922),and the detection limit can be as low as 0.25 μM(S/N=3),which has been successfully applied to Cr(Ⅵ)detection in actual water samples herein.
文献关键词：
中图分类号：
作者姓名：
Qianqian Huang;Qianqian Bao;Chengyuan Wu;Mengru Hu;Yunna Chen;Lei Wang;Weidong Chen
作者机构：
Anhui Province Key Laboratory of Chinese Medicinal Formula,Anhui University of Chinese Medicine,Hefei,230012,China
文献出处：
引用格式：
[1]Qianqian Huang;Qianqian Bao;Chengyuan Wu;Mengru Hu;Yunna Chen;Lei Wang;Weidong Chen-.Carbon dots derived from Poria cocos polysaccharide as an effective"on-off"fluorescence sensor for chromium(Ⅵ)detection)[J].药物分析学报（英文）,2022(01):104-112
A类：
mutagenicity,carcinogenicity,9942+0
B类：
Carbon,dots,derived,from,Poria,cocos,polysaccharide,effective,off,fluorescence,chromium,detection,Chromium,is,harmful,contaminant,showing,Therefore,requires,development,low,cost,high,sensitivity,sensors,Herein,blue,fluorescent,carbon,quantum,were,synthesized,by,one,step,hydrothermal,method,alkali,soluble,which,green,source,cheap,easy,obtain,has,pharmacological,due,water,solubility,These,exhibit,good,stability,anti,interference,cytotoxicity,can,specifically,combined,form,complex,that,causes,quenching,they,used,label,free,nanosensor,High,was,achieved,through,internal,filtering,static,effects,degree,probe,showed,linear,relationship,concentration,range,equation,F0,limit,been,successfully,applied,actual,samples,herein
AB值：
0.564217
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