摘要
设计了一种层叠一体化嵌入式流通池系统。将其与传统型流通池系统进行对比,分析两者光强损耗的机理。由光强损耗实验得出,在相同条件下,层叠一体化嵌入式流通池系统较传统型流通池系统相比对光强的总损耗减小了大约6 d B。通过测量不同浓度的标准磷酸盐溶液,得出两者在测量元素浓度时的分辨率。层叠一体化嵌入式流通池系统在测量20～200 nmol/L范围内的未知元素浓度溶液时其测量分辨率优于0.6 nmol/L,实现了对流动注射分光光度法测量分辨率的提高。
To improve the measurement resolution of flow injection spectrophotometry in the determination of element concentrations, a stack-up integrated and embedded flowing cell system was designed. The light intensity loss mechanism analysis was used to compare the conventional flowing cell system with the new system. Experimental results showed that the stack-up integrated and embedded flowing cell system reduced about 6 dB light total loss from that of the conventional flowing cell system in the same conditions. The resolutions of the measuring element concentration between the two system were obtained by measuring the different concentrations of standard phosphate solution, when Results showed that the measuring resolution of the stack-up integrated and embedded flowing cell system was better than 0.6 nmol/L for measuring 20 - 200 nmol/L unknown elements concentration in the solution, which realized the enhancement of measuring resolution for flow injection spectrophotometry.
出处
《分析试验室》
CAS
CSCD
北大核心
2015年第9期1104-1108,共5页
Chinese Journal of Analysis Laboratory
基金
广西重点实验室主任基金项目(YQ15103
YQ15116)资助
关键词
流通池系统
分光光度法
测量分辨率
Flowing cell system
Spectrophotometry
Measurement resolution
