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FIA—1型铀自动分析仪由流动注射流路系统、微机系统、光度检测器和电子学电路组成。流路系统装有新设计的多功能注入阀,它能自动更换试样注入体积,具有多位路切换功能,可以方便地改变测定的范围项目,使仪器能进行多种方式的流动注射分析操作,具备了通用仪器的功能。流路系统中还配有对铀有特效富集能力的萃取色层柱,使仪器能适用各种复杂试样中痕量铀的测定。采用Br-PADAP作显色剂,加入阴离子表面活性剂十六烷基吡啶,在水相介质中测定铀。测定范围为0.02—500mg/L,相对标准偏差1％—2％,分析速度为30—90样品次/h。经实际应用考核,取得了满意的结果。
FIA-1 uranium automatic analyzer by the flow injection system, computer systems, photometric detectors and electronic circuits. The flow path system incorporates a newly designed multi-function injection valve that automatically changes the injection volume of the sample, has a multi-bit path switching function, and can easily change the measurement range of items so that the instrument can perform a variety of flow injection analysis operations , With a common instrument features. The flow path system is also equipped with an extraction chromatography column capable of enriching uranium, enabling the instrument to be applied to the determination of trace uranium in various complex samples. Using Br-PADAP as a color reagent, adding an anionic surfactant cetyl pyridine, uranium determination in aqueous media. The determination range of 0.02-500mg / L, the relative standard deviation of 1% -2%, the analysis speed of 30-90 samples / h. The practical application of assessment, and achieved satisfactory results.