An improved spectrophotometer flow cell holder
An improved spectrophotometer flow cell holder
复制标题
改进的分光光度计流通池支架
DOI：
10.1021/ac60269a024
复制
发表时间：
1968
期刊：
影响因子：
--
通讯作者：
K. Clayson
中科院分区：
文献类型：
--
作者：
P. Strandjord;K. Clayson
在连续流动系统中使用分光光度计的自动化化学分析在试管和试管支架的设计方面提出了各种问题。对这些试管的要求包括通常考虑的光路长度、电池体积和光学性质。此外，还必须考虑空气滞留和流动特性。对后一特性的要求根据所采用的分析系统的不同而有所不同。例如，当空气用于监测层析流出物的吸光度的系统中时，空气很少进入细胞。另一方面，在采用间歇采样和频繁更换试剂的分析系统中使用空气时，空气经常进入细胞(I)。
AUTOMATED CHEMICAL ANALYSES which employ spectrophotometers in continuous flow systems present a variety of problems in reference to the design of cuvettes and cuvette holders. The requirements for these cuvettes include the usual considerations of length of light path, cell volume, and optical properties. In addition, air trapping and flow characteristics must also be considered.Requirements in respect to these latter characteristics vary in accordance with the system of analysis in which the cell is being employed. For example, air infrequently enters a cell when it is used in a system designed to monitor the absorbance of a chromatographic effluent. On the other hand, air frequently enters a cell when it is used in an analytical system which employs intermittent sampling and frequent changes of reagents (I).