提出了以甲基百里酚兰(MTC)和动物胶三元络合物形式测定锆的光度法。形成络合物的最佳条件是:P~H2,C_(MTC)=12×10~(-5)克分子/升,0.5毫升1％动物胶(C_(zr)=4×10~(-5)克离子/升时)。反应具有很高的对比度(△λ=200毫微米)。在λ最大=640毫微米处络合物的克分子消光系数为3.4×10~4。用等克分子系列法确定的锆与MTC的组成比等于1:3。在动物胶存在下锆与MTC的反应对锆化学以及有色化合物化学都具有许多重要特性。早先[1]我们已经指出,往锆——二甲酚橙体系中加入动物胶能够改善二元络合物的分光光度特性。提出了一种关于形成含有三种成份的复杂化合物机理的看法。本报导列举了研究在动物胶存在下锆与三苯甲烷染料的另一代表——甲基百里酚兰成络时所得到的数据。从证明络合物的形成机理以及将其用于分析目的的观点来看,该反应很有意 A spectrophotometric method for the determination of zirconium in the form of a ternary complex of methyl thymol blue (MTC) and animal glue was proposed. The optimal conditions for the formation of the complex are as follows: P ~ H2, C_ (MTC) = 12 × 10 -5 mol / L, 0.5 ml 1% 5) grams ion / liter). The reaction has a high contrast (Δλ = 200 nm). The molar extinction coefficient of the complex at λmax = 640 nm was 3.4 × 10 -4. The composition ratio of zirconium to MTC determined by the series of equimolar molecules equals 1: 3. The reaction of zirconium with MTC in the presence of animal glue has many important properties for zirconium chemistry as well as for the chemistry of colored compounds. Earlier [1] we have pointed out that the addition of zoogloein to the zirconium-xylenol orange system can improve the spectrophotometric properties of the binary complex. Put forward a view on the formation of complex compounds containing three components of the mechanism of view. This report lists the data obtained when studying the complexation of zirconium with methylphenylthiocyanate, another representative of triphenylmethane dyes, in the presence of animal glue. The reaction is very interesting from the point of view of proving the formation mechanism of the complex and its use for analytical purposes