矿石中痕量铁的测定,大多数采用比色法,原子吸收光谱法。有关化学发光测定法已有文献报导。本方法研究了鲁米诺-邻菲啰啉-过氧化氢-铁(Ⅱ)体系测定痕量铁时,不但有高的灵敏度,而且选择性和重现性都得到提高。与其他方法相比较具有灵敏度高,线性范围宽,选择性好,仪器设备简单,操作方便快速。 Determination of trace iron in ores, most of the colorimetric method, atomic absorption spectrometry. Chemiluminescence assay has been reported in the literature. This method has been studied for the determination of trace iron by the luminol-phenanthroline-hydrogen peroxide-iron (II) system not only with high sensitivity but also with improved selectivity and reproducibility. Compared with other methods, it has high sensitivity, wide linear range, good selectivity, simple equipment and convenient operation.