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首次系统研究了非水溶性ｍｅｓｏ－四（４－羟基苯基）卟吩（ｍｅｓｏ－ｔｅｔｒａｋｉｓ（４－ｈｙｄｒｏｘｙｐｈｅｎｙｌ）ｐｏｒｐｈｉｎｅ，简称Ｔ（４－ＨＰ）Ｐ）与钯（Ⅱ）的显色反应条件及有机溶剂的增敏作用。在Ｌ－抗坏血酸、表面活性剂存在下，沸水浴中加热１５ｍｉｎ，钯（Ⅱ）与Ｔ（４－ＨＰ）Ｐ形成稳定的１＋１配合物。ε４１９＝２．７２×１０５Ｌｍｏｌ－１ｃｍ－１，加入丙酮后，ε４２０＝１．４６×１０６Ｌｍｏｌ－１ｃｍ－１，是目前报道的分光光度法中测钯（Ⅱ）最灵敏的方法之一。试验了１７种离子的干扰影响。用此法测定了硅载体钯催化剂中钯的含量，回收率达９５％～９９％。
The color reaction conditions of water-insoluble meso-tetrakis (4-hydroxyphenyl) porphine (T-4-HPP) and palladium Sensitization of organic solvents. Palladium (Ⅱ) forms stable 1 + 1 complex with T (4-HP) P in the presence of L-ascorbic acid and surfactant for 15 min in boiling water bath. ε419 = 2.72 × 105Lmol-1cm-1. After adding acetone, ε420 = 1.46 × 106Lmol-1cm-1 is one of the most sensitive methods for the determination of palladium (Ⅱ) by spectrophotometry. Seventeen ions were tested for interference effects. With this method, the content of palladium in the silica support palladium catalyst was determined. The recovery rate was 95% -99%.