单道流路中样品分散与管路体积的关系  

Relationship between Sample Dispersion and Manifold Volume in Single Channel Flow-Injection Systems

作　　者：吴宁生[1] 吴国胜[2] 胡乃梁[3] 

机构地区：[1]中国科学技术大学化学系,安徽合肥230026 [2]安徽大学现代实验技术中心 [3]安徽大学化学系,安徽合肥230039

出　　处：《中国科学技术大学学报》2001年第5期600-604,共5页JUSTC

摘　　要：论文经推导和实验证实 :单道流路系统中样品分散与管路体积的关系可表示为线性关系 .对应于流出曲线极大值的流体元一经分散 ,分散系数的增量与所通过的管路体积的增量成正比 .在一合适的范围内 ,一细反应管可用另一管体积相同而管径不同的细反应管替换 ,若其他实验条件不变 。This paper has derived and verified that in sigle channel systems the dependence of sample dispersion on manifold volume can be expressed as a simple linear equation. Once the dispersion of the element of fluid which corresponds to the maximum on dispersion curve occurs, the increment of sample dispersion coefficient varies directly with the increment of manifold volume travelled through. Over a suitable range , a narrow reaction tube can be replaced by another one with the same tube volume but different inner radius. The sample dispersion will remain unchanged provided that other experimental conditions remain constant.

关 键 词：流动注射分析 分散系数 管路体积 反应管长度 反应管内径 单道流路系统 样品分散 

分 类 号：O661[理学—分析化学]