摘要
碱性条件下，对乙酰氨基酚对鲁米诺-过氧化氢-纳米银化学发光体系有较强的抑制作用，基于此，结合流动注射技术，建立了测定对乙酰氨基酚的新方法。研究了影响化学发光强度的各种因素，并初步探讨了可能的发光机理。在最佳实验条件下，对乙酰氨基酚浓度在2．0×10^-8-1．0×10^-4mol／L范围内与相对发光强度呈线性关系，检出限（3σ）为4．0×10^-9mol／L。对1．0×10^-7mol／L的对乙酰氨基酚平行测定9次，相对标准偏差为2．6％。该法用于片剂中扑热息痛含量的测定，结果令人满意。
A novel method for the determination of acetaminophen was developed based on its inhibition effect on the luminol-H2O2 -silver nanopartiele chemiluminescence system. Various factors influencing the chemiluminescence system were investigated and the possible mechanism was also studied. Under the optimum conditions, the linear range for the determination of acetaminophen is 2.0 × 10-8 to 1.0 × 10-4 mol/L with a detection limit of 4.0 × 10-9 mol/L. The relative standard deviation is 2. 6% for 1.0 × 10-7 mol/L acetaminophen solution in nine determination of acetaminophen in repeated measurements. The method was successfully applied to the pharmaceutical.
出处
《应用化学》
CAS
CSCD
北大核心
2014年第1期109-113,共5页
Chinese Journal of Applied Chemistry
基金
陕西省尾矿资源综合利用重点实验室(商洛学院)及陕西省科技统筹创新工程计划(2012KTDZ02-02-02)项目资助~~
关键词
化学发光
纳米银
鲁米诺
对乙酰氨基酚
chemiluminescence, Ag nanoparticles, luminol, acetaminophen
