山西农业大学学报（自然科学版）2016，Vol.36Issue(11)：832-836,5.
一种新型微量钾离子传感器的研究
A new galvanometric sensor for detection of trace potassium ion in aqueous solution
摘要
Abstract
Objective]The accurate determination of potassium is the key to clinical diagnosis and nutrition analysis,in order to solve the problem of the quantitative detection of potassium ion.[Methods]a new amperometric sensor was de-veloped by using mercapto-ethylamine to decorate the surface of screen-printed gold electrodes and binded with 4-amino two benzene and-18-crown-6. [Results]Determination of potassium-ion's content by chronoamperometry indicated that current of sensor wou;d be stable and had a linear relationship with the coefficient of determination was 0.9981 and sig-nificance test probability p value less than 0.000 1,when potassium was within the range of 1 ×10 -5 ~1 ×10 -4 M and the chronoamperometry parameters were set to 1 step(-0.3~0.6 V)and 200 s width of pulse.[Conclusion]The study on characterization of making sensor's electrodes through Cyclic Voltammetry showed that this method would be able to not only improve the reversibility and electrical conductivity of electrodes so as to improve the sensitivity but also help to make the micro potassium-ion sensor.关键词
钾离子/丝网印刷金电极/4-氨基二苯并-18-冠-6/电流计时法Key words
Potassium Ion/Screen-printed electrode/4-amino diphenyl-18-crown-6/Chronoamperomety分类
农业科技引用本文复制引用
郎璐婷,左月明,荆小院,杨威..一种新型微量钾离子传感器的研究[J].山西农业大学学报（自然科学版）,2016,36(11):832-836,5.基金项目
高等学校博士学科点专项科研基金资助项目(20121403110002) （20121403110002）
山西省回国留学人员资助项目(2013-061) （2013-061）
