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便携式可见分光光度计测定桂圆中二氧化硫
引用本文:窦宏亮,刘鑫,高峰,刘亚芹,云环,刘萤,刘来福.便携式可见分光光度计测定桂圆中二氧化硫[J].分析仪器,2017(4).
作者姓名:窦宏亮  刘鑫  高峰  刘亚芹  云环  刘萤  刘来福
作者单位:1. 北京普析通用仪器有限公司,北京,101200;2. 北京出入境检验检疫局,北京,100026
基金项目:首都科技条件平台国产检测仪器设备验证评价研究与应用
摘    要:采用便携式可见分光光度计测定桂圆中二氧化硫含量。结果表明,二氧化硫在0~120mg/kg范围内线性关系为y=0.99Abx-0.007,相关系数为0.999;重复性为9.0%。与实验室检测数据相比偏差为2.2%~9.0%。实验证明便携式可见分光光度计测定桂圆中二氧化硫的结果与实验室测定结果相当,可以用于桂圆中二氧化硫含量。

关 键 词:二氧化硫  快速检测  便携式可见分光光度计

Portable UV-Vis spectrophotometer determination of sulfur dioxide in longan
Dou Hongliang,Liu Xin,Gao Feng,Liu Yaqin,Yun Huan,Liu Ying,Liu Laifu.Portable UV-Vis spectrophotometer determination of sulfur dioxide in longan[J].Analytical Instrumentation,2017(4).
Authors:Dou Hongliang  Liu Xin  Gao Feng  Liu Yaqin  Yun Huan  Liu Ying  Liu Laifu
Abstract:Sulfur dioxide in longan was determined by a portable UV-Visible spectrophotometer.The measurement technology which can meet the field rapid detection was inspected.The results showed that sulfur dioxide linearity was good in 0-120mg/kg.Linear relationship was y=0.99Abx-0.007,and correlation coefficient was 0.999.The detection limit was 2.11mg/kg and the deviation was 2.2%——9.0%.Compared with the fixed laboratory testing technology,the experiment proved that the portable UV-Visible spectrophotometer method for determination of sulfur dioxide in longan could be applied to rapid on-site detection.
Keywords:sulfur dioxide  rapid detection  portable UV-Vis spectrophotometer
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