在封闭的消化器块中制备的药用草药的绿色样品,用ICP OES进行元素测定
João B Pereira Junior1, Vanessa S Carvalho1, William Q Ferreira1
1Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica, Campus Universitário de Ondina, 40170-115 Salvador, Bahia, Brazil; Instituto Nacional de Ciência e Tecnologia, INCT, de Energia e Ambiente, Universidade Federal da Bahia, 40170-270 Salvador, Bahia, Brazil.
Journal of pharmaceutical and biomedical analysis
|November 9, 2023
概括
一种使用ICP OES的新型,经济高效和绿色消化方法可以准确地确定药用草本中必需的和有毒的元素. 该方法提供可靠的元素分析,用于质量控制和草药产品的分类.
科学领域:
- 分析化学 分析化学
- 环境科学 环境科学
- 药理学是指药理学,它是指药理学.
背景情况:
- 药用草药对于医疗保健至关重要,需要精确的元素成分分析.
- 传统的消化方法可能昂贵,耗时,对环境有害.
- 强大的分析技术对于确保草药的安全性和有效性至关重要.
研究的目的:
- 开发一种简单,经济高效,环保的消化方法,用于药用草药的元素分析.
- 使用多变量策略优化消化参数,以提高准确性和效率.
- 通过使用认证的参考材料验证方法的性能,并评估其对真实样本的适用性.
主要方法:
- 感应合等离子光学发射光谱仪 (ICP OES) 用于元素的确定.
- 分数因数设计用于优化消化参数 (温度,时间,试剂组成).
- 封闭区块消化系统使用酸,过氧化和脱离离子水.
主要成果:
- 在180°C下120分钟以特定的试剂混合物和样本质量实现最佳消化.
- 该方法证明了低溶解有机碳和剩余酸度.
- 对14种元素 (As,Ca,Cd,Cr,Cu,Fe,K,Mg,Mn,Na,P,Pb,Sr,Zn) 实现了检测 (LOD) 和量化 (LOQ) 的低极限.
- 准确性通过经过认证的参考材料验证 (83-116%的协议).
- 该指标证实了该方法的环保性 ("绿色性").
- 主要成分分析 (PCA) 根据元素概况有效地分类了27种药用草本样本.
结论:
- 开发的消化方法对于药用草药的元素分析来说是简单的,经济的,环保的.
- 该方法提供准确可靠的结果,适合质量控制和研究.
- 使用PCA进行元素分析是分类药草的宝贵工具,有助于真实性和质量评估.
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