•  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
期刊检索


检索
检索项:
检索词:
总目录
  • WCSB9︱2019(第九届)世界采样和混样大会 查看全文>>
  • 关于召开第十五届全国青年分析测试学术报告会的通知 查看全文>>
友情链接
多壁碳纳米管修饰金膜塑料电极测定儿童用品中的壬基酚
    点此下载全文
作者单位
李海玉,宗艺晶,白桦,王婉,吕庆,王志娟,张庆 中国检验检疫科学研究院北京100176 
基金项目:国家市场监督管理总局科技计划项目(2019MK125);市场监管业务综合保障经费-缺陷进口消费品召回项目
中文摘要:以廉价的聚对苯二甲酸乙二酯(PET)塑料为基底,采用真空离子溅射技术,制备了一种多壁碳纳米管修饰的可抛式金膜塑料工作电极。通过扫描电镜观察修饰电极的表面形貌,利用循环伏安法对不同修饰状态的电极性能进行表征。在优化实验条件下,应用线性扫描伏安对壬基酚(NP)进行分析。结果表明,壬基酚在005~5 mg/L范围内,修饰工作电极的峰电流与壬基酚质量浓度呈良好的线性关系,检出限为003 mg/L,加标回收率为920%~103%,相对标准偏差(RSD)均小于16%。 该可抛式电极可小批量化制备,操作简单,成本低,可防止不同样品对电极表面的交叉污染,应用于塑料样品中壬基酚迁移量的测定,结果满意。
中文关键词:可抛式电极  多壁碳纳米管  金膜  壬基酚
 
Determination of Nonylphenol in Childrens Products Based on Multi walled Carbon Nanotubes Modified Gold Film Plastic Electrode
Abstract:A novel disposable electrochemical sensor was fabricated by sputtering gold film and modifying multi walled carbon nanotubes(MWCNTS) on a low cost polyethylene terephthalate(PET) plastic as electrode substrate.The surface morphology of the working electrode was observed by scanning electron microscopy(SEM).The performance of the working electrode in different stages was characterized by cyclic voltammetry(CV).Under the optimal conditions,the nonylphenol(NP) was investigated by linear sweep voltammetry(LSV).Results showed that there was an excellent linear relationship between peak current of the proposed electrode and nonylphenol in the concentration range of 005-5 mg/L,with a detection limit of 003 mg/L.The spiked recoveries ranged from 920% to 103% with relative standard deviations(RSDs) less than 16%.The proposed electrode is low cost,easy to fabricate and available for small lot production.Furthermore,it could prevent itself from the cross contamination of electrode surface in different samples.It was applied to the detection of nonylphenol migration from real plastic samples with satisfactory results.
Key Words:disposable electrode  multi walled carbon nanotubes  gold film  nonylphenol
引用本文:李海玉,宗艺晶,白桦,王婉,吕庆,王志娟,张庆.多壁碳纳米管修饰金膜塑料电极测定儿童用品中的壬基酚[J].分析测试学报,2021,40(3):406-410.
摘要点击次数: 120
全文下载次数: 198
查看全文  下载PDF阅读器