应用化学 ›› 2023, Vol. 40 ›› Issue (1): 100-108.DOI: 10.19894/j.issn.1000-0518.220126

• 研究论文 • 上一篇    下一篇

酰腙键聚合物凝胶的制备及其在硝基呋喃类药物分析中的应用

李玉凰, 卢泽毅, 袁红梅, 王刚, 张成江()   

  1. 遵义医科大学药学院,遵义 563000
  • 收稿日期:2022-04-11 接受日期:2022-08-03 出版日期:2023-01-01 发布日期:2023-01-28
  • 通讯作者: 张成江
  • 基金资助:
    国家自然科学基金(21765027);贵州省自然科学基金(黔科合基础[2018]1188)

Preparation and Application of Acylhydrazone Bonded Polymer Gel in Nitrofuran Drugs Analysis

Yu-Huang LI, Ze-Yi LU, Hong-Mei YUAN, Gang WANG, Cheng-Jiang ZHANG()   

  1. School of pharmacy,Zunyi Medical University,Zunyi 563000,China
  • Received:2022-04-11 Accepted:2022-08-03 Published:2023-01-01 Online:2023-01-28
  • Contact: Cheng-Jiang ZHANG
  • About author:chemzhangsir@163.com
  • Supported by:
    the National Natural Science Foundation of China(21765027);the Natural Science Foundation of Guizhou Province([2018]1188)

摘要:

以1,3,5-苯三甲酰肼和间苯二甲醛为有机单体,利用席夫碱反应原理和酰腙共价键为交联点,通过一步交联聚合法研制了一种新型酰腙键聚合物凝胶。采用扫描电子显微镜、红外光谱、固体核磁和热重分析对所制备的聚合物凝胶进行结构和形貌表征,结果表明材料具有良好的物化性能。将其作为固相萃取吸附剂,结合高效液相色谱-二极管阵列检测器检测,建立了饲料中4种硝基呋喃类药物的分析方法。通过单因素实验,系统考察了吸附剂用量、上样体积、洗脱溶剂和洗脱体积对方法回收率的影响。在最优实验条件下,呋喃它酮(FTD)、呋喃西林(NFZ)、呋喃妥因(NFT)和呋喃唑酮(FZD)在1.0~200 μg/L范围内线性关系良好,相关系数(r)均大于0.9990,方法的检出限以信噪比(S/N=3)计算为0.1~0.5 μg/L,定量限(S/N=10)为1.0~5.0 μg/L,在3个浓度水平(10、50和100 μg/L)加标下样品的回收率在78.5%~96.8%之间,相对标准偏差(RSD)为2.1%~9.3%。该方法的检出限低、灵敏高,可用于饲料样品中硝基呋喃类药物的灵敏准确分析。

关键词: 酰腙键聚合物凝胶, 固相萃取, 高效液相色谱, 硝基呋喃类药物, 饲料样品

Abstract:

A novel acylhydrazone bond polymer gel (BTH-BD Gel) is prepared by one-step polymerization through the crosslink between 1,3,5-benzenetricarbohydrazide (BTH) and 1,3-benzenedialdehyde (BD). The structure and morphology of the gel are characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, solid state nuclear magnetic resonance and thermogravimetric analysis. The results indicate that the BTH-BD Gel material shows good physical and chemical properties. Thereafter, the BTH-BD Gel powder is used as sorbents for solid phase extraction coupled with common high performance liquid chromatography-diode array detector (HPLC-DAD), and a method for the determination of four nitrofurans in feed samples is established. The effects of adsorbent dosage, loading volume, elution solvent and elution volume on the recoveries are investigated by single factor experiments. Under the optimum experimental conditions, the wide linear range of furaltadone (FTD), nitrofurazone (NFZ), furantion (NFT) and furazolidone (FZD) from1.0 μg/L to 200 μg/L, the correlation coefficient (r) is greater than 0.9990, the detection limits of the method are calculated as 0.1~0.5 μg/L using the signal-to-noise ratio (S/N=3), and the limits of quantification (S/N=10) are 1.0~5.0 μg/L, respectively. The recoveries of three spiked concentrations (10, 50 and 100 μg/L) are 78.5%~96.8%, and the RSD is 2.1%~9.3%. This method exhibits several advantages such as simple pretreatment, good recoveries, low detection limit and high sensitivity, which could be used for sensitive and accurate analysis of nitrofurans drugs in feed samples.

Key words: Acylhydrazone bond polymer gel, Solid phase extraction, High performance liquid chromatography, Nitrofuran drugs, Feed samples

中图分类号: