欢迎访问《林产化学与工业》，
林产化学与工业

林产化学与工业 ›› 2007, Vol. 27 ›› Issue (3): 1-5.

• 研究报告 •    下一篇

樟脑标准样品的制备和定值研究

赵振东1, 李冬梅1, 毕良武1, 王婧1, 曹向民2, 古研1   

  1. 1. 中国林业科学研究院 林产化学工业研究所 国家林业局 林产化学工程重点开放性实验室, 江苏 南京 210042;2. 九江市出入境检验检疫综合技术中心, 江西 九江 332000
  • 收稿日期:2006-10-18 修回日期:1900-01-01 出版日期:2007-06-30 发布日期:2007-06-30

Study on Preparation and Certification of Reference Material of Camphor

ZHAO Zhen-dong1, LI Dong-mei1, BI Liang-wu1, WANG Jing1, CAO Xiang-min2, GU Yan1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China;2. General Technical Center of Jiujiang Entry-exit Inspection and Quarantine, Jiujiang 332000, China
  • Received:2006-10-18 Revised:1900-01-01 Online:2007-06-30 Published:2007-06-30

PDF (PC)

780

摘要： 研究了樟脑标准样品的制备、均匀性和稳定性及其定值方法.采用天然樟脑经过乙醇重结晶和化学除杂相结合的方法制备樟脑标准样品,采用气相色谱面积归一化法测定含量.本批次制备的樟脑标准样品通过了均匀性检验,且至少在24个月内是稳定的.樟脑标准样品的多实验室联合定值结果表示为:樟脑含量的标准值99.91%;标准不确定度0.04%;扩展不确定度(95%置信率)0.09%.

关键词: 樟脑, 标准样品, 制备, 定值

Abstract: Preparation, homogeneity, stability and certification of reference material of camphor were studied. The reference material of camphor was prepared by re-crystallization in ethanol combined with chemical impurity-elimination. The content of camphor in reference material was measured by gas chromatographic area normalization. The reference material of camphor passed the test of homogeneity, and has been stable for more than 24 months at least. The united certification results of camphor reference material through multiple labs showed that the standard value of camphor content was 99.91% with the standard uncertainty of 0.04%, and the expanded uncertainty of 0.09% under the confidence coefficient of 95%.

Key words: camphor, reference material, preparation, certification

中图分类号: 

版权所有 © 中国林业科学研究院林产化学工业研究所　苏ICP备08107184号-3