矿物药朱砂加工流程中可溶性重金属含量的仿生提取-ICP-OES测定方法
发布时间：2018-11-21 07:10
【摘要】：收集朱砂生产加工工艺流程中不同工艺点的样品,采用仿生提取-电感耦合等离子体发射原子光谱法(仿生提取-ICP-OES法)对朱砂样品中可溶性重金属含量进行测定。研究结果表明:仿生提取-ICP-OES法能满足13种重金属同时检测要求,13种重金属线性范围均在0.1~1 000.0μg/L之间,线性相关系数为0.990 1~1.000 0,检出限为0.089 3~16.041 4μg/L;该方法重复性相对标准偏差DRS均小于10.0%,精密度的DRS均小于7.1%,加样回收率为83.0%~117.5%,满足检测要求;在工艺流程中,朱砂的可溶性重金属含量呈逐步降低趋势,参照《药用植物及制剂进出口绿色行业标准》的限量标准,仅有H-5的Cd超出标准及H-3,H-4和H-5样品的Pb超出标准;仿生提取-ICP-OES法简单、快速,准确性及精度高,能够通过同时检测朱砂加工工艺过程中13种可溶性重金属含量检测,为实时监控朱砂加工工艺质量提供参考依据,有助于完善并确定最佳的朱砂生产加工流程。
[Abstract]:The contents of soluble heavy metals in cinnabar samples were determined by bionic extraction-inductively coupled plasma emission atomic spectroscopy (ICP-OES). The results show that the bionic extraction and ICP-OES method can meet the requirements of simultaneous detection of 13 heavy metals. The linear range of 13 heavy metals is between 0.1 渭 g / L and 1 000.0 渭 g / L, and the linear correlation coefficient is 0.990 1 渭 g / L, and the linear correlation coefficient is 0.990 1 渭 g / L, respectively. The detection limit was 0.089 ~ 16.0414 渭 g / L; The reproducibility relative standard deviation (DRS) of the method was less than 10.0 and the precision DRS was less than 7.1. The recovery rate of the sample was 83.0 and 117.5, which met the requirements of detection. In the technological process, the soluble heavy metal content of cinnabar decreased gradually. According to the limit standard of "Green Industry Standard for Medicinal plants and preparations", only H-5 Cd exceeded the standard and H-3, The Pb of H-4 and H-5 samples exceeded the standard. Bionic extraction-ICP-OES method is simple, rapid, accurate and accurate. It can be used to detect 13 kinds of soluble heavy metals in the process of cinnabar processing at the same time, which provides a reference for real-time monitoring the quality of cinnabar processing. Help to improve and determine the best process of cinnabar production.
【作者单位】： 中南大学化学化工学院;湖南省食品药品检验研究院;
【基金】：国家科技部十二五专项(2014ZX09304-307)~~
【分类号】：R284;O657.31
本文编号：2346275
[Abstract]:The contents of soluble heavy metals in cinnabar samples were determined by bionic extraction-inductively coupled plasma emission atomic spectroscopy (ICP-OES). The results show that the bionic extraction and ICP-OES method can meet the requirements of simultaneous detection of 13 heavy metals. The linear range of 13 heavy metals is between 0.1 渭 g / L and 1 000.0 渭 g / L, and the linear correlation coefficient is 0.990 1 渭 g / L, and the linear correlation coefficient is 0.990 1 渭 g / L, respectively. The detection limit was 0.089 ~ 16.0414 渭 g / L; The reproducibility relative standard deviation (DRS) of the method was less than 10.0 and the precision DRS was less than 7.1. The recovery rate of the sample was 83.0 and 117.5, which met the requirements of detection. In the technological process, the soluble heavy metal content of cinnabar decreased gradually. According to the limit standard of "Green Industry Standard for Medicinal plants and preparations", only H-5 Cd exceeded the standard and H-3, The Pb of H-4 and H-5 samples exceeded the standard. Bionic extraction-ICP-OES method is simple, rapid, accurate and accurate. It can be used to detect 13 kinds of soluble heavy metals in the process of cinnabar processing at the same time, which provides a reference for real-time monitoring the quality of cinnabar processing. Help to improve and determine the best process of cinnabar production.
【作者单位】： 中南大学化学化工学院;湖南省食品药品检验研究院;
【基金】：国家科技部十二五专项(2014ZX09304-307)~~
【分类号】：R284;O657.31
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