【摘要】 本文用电生化学发光的方法,在碱性鲁米诺溶液中用Pt-Pt电极系统则定天然水中的可溶态铬（Ⅲ）。当Pt-Pt电极上施加+1.7V矩形脉冲时,可观察到鲁术诺发光现象。Cr³⁺对此过程有催化作用,且Cr³⁺的浓度与在2×10^-6～2×10^-10mlo/L鲁米诺电生化学发光强度有线性关系。更多还原

【Abstract】 A sensitive method for determination of trac echromium（Ⅲ） in aqueous alkaline solution has been developed by using electrogenerated chemiluminescence of luminol at Pt-Pt electrodes. The potential applied is positive pulse. The detection limit is 1.2×10^-10 mlo/L. The calibration curve is linear from 2.0×10^-10 mol/L up to 2.0×10^-6mol/L.更多还原