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给出了新试剂ＨＰｙＮＴ的物理、化学性质及其合成方法；对ＨＰｙＮＴ与钯（Ⅱ）的显色反应进行了分光光度研究，找出最佳的显色条件，显色的适宜酸度可高至３．６ｍｏｌ／ＬＨ＿２ＳＯ＿４。
The physical and chemical properties of HPyNT and its synthesis method were given. The color reaction of HPyNT with palladium (Ⅱ) was studied spectrophotometrically to find out the best conditions for color development. The suitable acidity for color development can be as high as 3.6mol / LH_2SO_4.