论文部分内容阅读
由于砷是剧毒物质，所以，生产与食品有关的铝包装盒，包装袋时，对砷的控制十分严格。ＤＤＣＡｇ 法测定砷是一种快速、灵敏和准确性良好的方法，用于铝及铝合金中痕量砷的测定（ 测定范围０ ～４ｍｇ／Ｌ） ，获得了满意的结果。在酸性介质中使用还原剂将砷（Ｖ） 还原为砷（ Ⅲ），再用新生态的氢将砷（Ⅲ）还原为砷化氢气体通入显色剂中测定。
As arsenic is a highly toxic substance, the control of arsenic is very strict when it comes to producing food-related aluminum packaging boxes and bags. DDCAg method for the determination of arsenic is a fast, sensitive and accurate method for the determination of trace amounts of arsenic in aluminum and aluminum alloys (determination range 0 ~ 4mg / L), with satisfactory results. Arsenic (V) is reduced to arsenic (III) using a reducing agent in an acidic medium, and then the arsenic (III) is reduced to arsine gas by a fresh ecological hydrogenation reagent to determine the color.