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介绍研制和组装的一台电致化学发光仪,由IBM PC微机与12位D/A卡配合组成脉冲波形发生器,可产生任意波形的脉冲,脉冲的电学参数也可任意调节,实现了扫描时间,静置时间及连续扫描次数的微机控制。应用该仪器对鲁米诺碱性水溶液的电致化学发光行为进行研究,测定鲁米诺的线性范围为5.0×10~6mol/L-8.0×10~3mol/L。检出限为1.3×10~6mol/L。连续测定11份含鲁米诺1.0×10~4mol/L的试液,相对标准偏差为8.8％。
Introduced the development and assembly of an electrochemiluminescence instrument, composed of IBM PC microcomputer and 12 D / A card with a pulse waveform generator can generate arbitrary waveform pulse, the pulse of the electrical parameters can be adjusted to achieve the scan time , Standing time and the number of continuous scanning computer control. The electrochemiluminescence (PL) of luminol aqueous solution was studied by using this instrument. The linear range of luminol was 5.0 × 10 ~ 6mol / L-8.0 × 10 ~ 3mol / L. The detection limit was 1.3 × 10 ~ 6mol / L. Eleven samples with luminol 1.0 × 10 ~ 4mol / L were determined continuously, with a relative standard deviation of 8.8%.