安徽农业科学2017，Vol.45Issue(24)：11-15,5.
不同种类烟草中氨含量检测准确性分析及其不确定度
Analysis on Accuracy and Uncertainty in Determination of Ammonia in Different Kinds of Tobacco
刘威 1涂安婷 1徐其敏1
作者信息
- 1. 华环国际烟草有限公司,安徽省滁州市凤阳县门台子工业园,安徽滁州 233121
- 折叠
摘要
Abstract
[Objective] The aim was to study the concentration range of calibration curve to improve the accuracy of the determination of ammonia in different kinds of tobacco with continuous flow method.[Method] Three different calibration curves were drawn for determination of ammonia content in different tobacco and the concentration range of standard solution was 0.2-2.0 mg/L, 1.0-10.0 mg/L and 10.0-100.0 mg/L, respectively.The uncertainty of this measurement was analyzed and assessed.[Result] Tobacco products were divided into 4 groups according to ammonia content.The concentration range of calibration curve had a significant influence on the test results, that was the greater the concentration range, the lower the accuracy and precision of test results.The RSDmax was less than 0.9%, and the rate of recovery was 99.9%-100.7%.The uncertainty of this measurement were as followed: (0.042 5±0.001 6)‰ for flue-cured tobacco 1, (0.437±0.012)‰ for oriental tobacco, (5.04±0.13)‰ for burley 1.[Conclusion] The above interval differentiate was reasonable, and the detection data was accurate and reliable.关键词
氨/工作曲线浓度范围/区间划分/不确定度Key words
Ammonia/Work curve concentration range/Interval differentiate/Uncertainty分类
轻工纺织引用本文复制引用
刘威,涂安婷,徐其敏..不同种类烟草中氨含量检测准确性分析及其不确定度[J].安徽农业科学,2017,45(24):11-15,5.
