在含盐量高的样本中通过高通量固体相微提取,加上微等离子体诱导的蒸汽生成原子光谱法来确定
Yubin Su1, Yao Lin2, Chengbin Zheng3
1School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan 610031, China.
Journal of hazardous materials
|November 8, 2025
概括
一个新的石墨烯氧化物/多壁碳纳米管水凝阵列与微等离子体诱导蒸汽生成原子光谱学相结合,可在海水和尿液中灵敏检测海洋 (Cd2+). 该方法为环境和健康监测提供了准确和有效的分析.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 海洋 (Cd2+) 污染对环境安全和人类健康构成重大风险.
- 在海水和尿液等复杂矩阵中对Cd2+的敏感和高效的检测方法至关重要.
研究的目的:
- 开发一种高通量固相微提取 (SPME) 阵列,用于敏感的Cd2+确定.
- 为了将SPME阵列与液电极发光放电微等离子体诱导蒸汽生成 (LEGD-μPIVG) 原子光谱 (AFS) 配对.
- 验证在环境和生物样本中分析Cd2+的方法.
主要方法:
- 制造一个石墨烯氧化物/多壁碳纳米管 (GO/MWCNTs) 基于水凝的SPME纤维.
- 使用GO/MWCNTs纤维进行Cd2+的预度和分离.
- 在线化和Cd2+的确定使用LEGD-μPIVG-AFS.
主要成果:
- 开发的方法实现了广泛的线性范围 (0.055μg L-1) 与R2 = 0.991.
- 获得了43的增强因子和低检测极限 (4 ng L-1).
- 良好的可复制性 (RSD < 8.3%) 和在经认证的参考材料,海水和尿液样本中验证的准确性.
结论:
- GO/MWCNTs水凝SPME阵列与LEGD-μPIVG-AFS相结合,是一种敏感,高效和实用的Cd2+检测方法.
- 该方法有效地减轻了矩阵干扰,简化了分析步骤.
- 这种方法适用于环境和人类健康背景下对Cd2+的常规监测.
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