期刊论文

Content Determination of As and Hg of Lilium Lancifolium Samples from Longshan County by AFS

中文

中国中医药信息杂志

1005-5304

2018

25

3

90-93

10.3969/j.issn.1005-5304.2018.03.020

国家自然科学基金青年基金（81403206） 国家中医药管理局科研项目（ZYBZH-Y-HUN-24） 湖南省科技厅社会发展项目（2014SK3042） 湖南省教育厅优秀青年项目（2014B131）

本校为第一机构

目的优化微波消解条件,测定龙山卷丹百合中砷、汞的含量。方法采用自动微波消解仪,在聚四氟乙烯微波管中用HNO_3-H_2O_2消解龙山卷丹百合样品,并通过原子荧光法分别测定龙山卷丹百合中砷、汞的含量。结果龙山卷丹百合是砷的含量范围为0.031~0.507 mg/kg,汞的含量最高为0.024 mg/kg,砷、汞的线性方程分别为Y=221.23X+170.72(r=0.995 9)、Y=503.52X-682.43(r=0.999 2)。生产基地的样品中砷、汞元素加样回收率分别为94.32%、92.48%,RSD分别为2.14%、2.70%;育种基地的样品中砷、汞元素加样回收率分别为94.95%、93.52%,RSD分别为1.15%、1.97%。结论该方法易操作、可靠,可用于龙山卷丹百合中砷、汞含量...

Objective To analyze and discuss the content determination of As and Hg from Lilium Lancifolium in Longshan County; To optimize microwave digestion conditions. Methods Automatic microwave digestion appratus was used. Lilium Lancifolium samples from Longshan County were digested in teflon microwave tube with HNO_3-H_2O_2, and As and Hg were measured with atomic fluorescence spectrometry (AFS). Results The content of As was in the range of 0.031-0.507 mg/kg, and the highest content of Hg was 0.024 mg/kg. The regression equation was Y=221.23X+170.72 (r=0.995 9), Y=503.52X-682.43, (r=0.999 2). For...