空心聚合物纳米球 (HPSs) 作为可重复使用的吸附剂,用于从尿样中提取跨,跨酸的固体相提取 (SPE)
Nematullah Kurd1, Abbas Afkhami2, Hanieh Ganji3
1Department of Occupational Health and Safety, Behbahan Faculty of Medical Sciences, Behbahan, Iran.
概括
空性聚合物纳米圈 (HPSs) 提供可重复使用的吸附剂,用于尿液中酸 (tt-MA) 的固相提取 (SPE). 这种方法有效地测量了具有高回收率的暴露生物标志物.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 暴露是一个公共卫生问题,需要可靠的生物标志物.
- 转,转酸 (tt-MA) 是低水平暴露的潜在生物标志物.
- 现有的TT-MA测定方法可能需要提高效率和可重复使用性.
研究的目的:
- 开发和优化一种新的固相提取 (SPE) 方法,使用空心聚合物纳米球 (HPSs) 进行tt-MA测定.
- 评估HPSs作为可重复使用的吸收剂的性能,用于从尿液中提取TT-MA.
- 验证开发的HPSs-SPE方法,用于对生物样本中的TT-MA进行准确和敏感的分析.
主要方法:
- 空心聚合物纳米圈 (HPSs) 在水热条件下通过弱酸组合合成.
- 通过评估诸如样本体积,pH,流量,洗和化溶剂等参数,优化了SPE方法.
- 优化的方法与高性能液态染色学 (HPLC-UV) 结合用于tt-MA量化.
主要成果:
- 优化HPSs-SPE在特定条件下 (pH7,2毫升样品体积,1毫升/分钟流量,特定的洗和化溶剂) 从尿液中获得了高的TT-MA回收率.
- 该方法表现出极好的线性 (r2 > 0.99),低检测极限 (0.05μg/ml) 和良好的可重现性 (RSD < 7.7%).
- 从加的尿样中恢复超过了96%,证实了该方法的有效性.
结论:
- 空心聚合物纳米球 (HPSs) 是有效的,可重复使用的吸附剂,用于固相提取tt-MA.
- 开发的HPSs-SPE-HPLC-UV方法适用于尿液中tt-MA的敏感和可靠的测定.
- 这种方法在监测人类中低水平暴露时具有显著的适用性.
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