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铁是动植物生长发育所必须的微量元素,植物缺铁产生黄叶病。测定土壤中的铁对防止微量元素营养缺乏具有重要意义。流动注射分析具有简便快速的特点,最近Mortatti等曾以邻菲罗啉为显色剂用流动注射法测定了水及植物中的铁。本法采用2,2＇-联吡啶为显色剂,将它与缓冲剂邻苯二甲酸氢钾,还原剂抗坏血酸配制在同一溶液中作为试剂载流,并对其它条件进行了选择,用自动
Iron is a trace element necessary for the growth and development of animals and plants, plant iron deficiency produce yellow leaf disease. Determination of iron in the soil to prevent micronutrient deficiencies is of great significance. Flow injection analysis is quick and easy. Recently, Mortatti et al. Used the phenanthroline phenanthrenes to determine the iron in water and plants by flow injection. This method uses 2,2’-dipyridyl as a color reagent, it is formulated with potassium hydrogen phthalate buffer, ascorbic acid reductant in the same solution as a reagent carrier, and other conditions have been selected with automatic