摘要
在碳纸基底上采用一步水热法原位生长过渡金属镍基碱式碳酸盐(Ni-CHs),构建高灵敏度和选择性的无酶葡萄糖传感器。利用X射线衍射、扫描电子显微镜对材料进行物相鉴定和形貌表征。采用循环伏安法和时间-电流曲线评估传感器的性能。结果表明,Ni-CHs/CP在0.5 V的低电势下对葡萄糖具有最佳检测能力,传感器的氧化峰电流在葡萄糖浓度为0.95μmol/L~2.623 mmol/L范围内呈现良好的线性关系,相关系数为0.998,检出限为0.31μmol/L(R_(SN)=3),响应时间为3.5 s。此传感器具有良好的稳定性并成功用于实际样品的检测,加标回收率在95.65%~105.56%之间。
Based on transition metal nickel-based basic carbonate(Ni-CHs)grown in situ on carbon paper(Ni-CHs/CP),prepared by one-step hydrothermal method,a highly sensitive and selective enzyme-free sensor to detect glucose was developed.X-ray diffraction(XRD)and scanning electron microscopy(SEM)were used to identify the phase and characterize the morphology of the material.Cyclic voltammetry(CV)and time-current curve were used to evaluate the performance of the sensor.The results showed that Ni-CHs/CP had the best detection ability for glucose at a low potential of 0.5 V,and the oxidation peak current of the sensor showed an excellent linear relationship with glucose concentration in the range of 0.95μmol/L–2.623 mmol/L,with a correlation coefficient of 0.998.The detection limit was 0.31μmol/L(R_(SN)=3)and response time was 3.5 s.This sensor has good stability and has been successfully used in the detection of actual samples with spiked recoveries of 95.65%–105.56%.
作者
刘丽
张智锋
王松磊
李海峰
李恳恳
马亮
魏培媛
张也
武康宁
LIU Li;ZHANG Zhifeng;WANG Songlei;LI Haifeng;LI Kenken;MA Liang;WEI Peiyuan;ZHANG Ye;WU Kangning(School of Food and Wine,Ningxia University,Yinchuan 750021,China;School of Food Science and Technology,Huazhong Agricultural University,Wuhan 430000,China;Huaxinda Health Technology Company of Ningxia,Lingwu 751400,China)
出处
《食品科学》
EI
CAS
CSCD
北大核心
2022年第8期339-345,共7页
Food Science
基金
宁夏回族自治区重点研发计划项目(2019BEH03002)
国家自然科学基金地区科学基金项目(31660484)。
关键词
镍基碱式碳酸盐
无酶葡萄糖传感器
水热法
饮料
nickel-base carbonate
non-enzymatic electrochemical sensor for glucose detection
hydrothermal method
beverage
