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广东工学院冯胜,钟炽英两位老师提出了以钼酸铵、酒石酸锑钾为显色剂,形成砷锑钼兰和磷锑钼兰杂多酸,用强碱性阴离子交换树脂富集并直接进行测定。在树脂上缔合物的ε为700nm,0～6μgAs/100ml和0～2.5μgP/100ml范围内符合比耳定律。其灵敏度很高,为三元杂多酸水相法的60倍。制定了在普通比色皿上连续测定微量砷和磷的方法,其灵敏高,选择性好,应用范围广,不仅可用于水样的测定,而且还应用于某些金属样和矿样中微量砷和磷的测定。所用的树脂经再生可反复使用。
Feng Sheng, Zhong Chiying, Guangdong Institute of Technology, two teachers proposed the use of ammonium molybdate, antimony potassium tartrate as a reagent to form arsenic antimony molybdenum blue and phosphorus antimony molybdenum blue heteropoly acid, with strong basic anion exchange resin enrichment and Direct determination. Beer’s law is obeyed in the range of ε of 700 nm, 0 to 6 μgAs / 100 ml and 0 to 2.5 μgP / 100 ml on the resin. Its high sensitivity, ternary heteropolyacid aqueous 60 times. The method of continuous determination of trace arsenic and phosphorus in common cuvette is developed. The method has the advantages of high sensitivity, good selectivity and wide application range, and can be used not only for the determination of water samples, but also for the determination of trace amounts in certain metal samples and ore samples Determination of arsenic and phosphorus. The resin used can be recycled after use.