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荧光光度法灵敏度优于吸光光度法,但选择性较差,实验条件较严。三元络合物应用于荧光分析,使荧光光度法在灵敏度、选举性、准确度诸方面均有很大提高,实验条件也有所改善。如 Eu-噻吩甲酰三氟丙酮(TTA)-可力丁(Collidine)三元络合物,可测定0.0001～1.0微克/5毫升铕,检出限量为10~(-10)克。Co-水杨酸荧光素-H_2O_2体系,可测定0.0005～0.01微克/5毫升钴。目前在地质、冶金、纯物质、环境科学、原子能科学的分析化学领域中得到了较广泛的应用。近几年有关荧光分析的专门评述中,三元
The sensitivity of fluorescence spectrophotometry is better than that of spectrophotometry, but the selectivity is poor and the experimental conditions are more stringent. Ternary complexes used in fluorescence analysis, the fluorescence spectrophotometry in the sensitivity, the election, the accuracy of all aspects of a great increase, the experimental conditions have also been improved. Such as Eu-thio formyl trifluoroacetone (TTA) - collidine ternary complex, the determination of 0.0001 ~ 1.0 micrograms / 5 ml of europium, the detection limit of 10 ~ (-10) grams. Co-salicylic acid fluorescein-H 2 O 2 system, measurable 0.0005 ~ 0.01 μg / 5 ml cobalt. Currently in the field of geology, metallurgy, pure matter, environmental science, atomic energy analytical chemistry has been more widely used. In recent years, a special review of fluorescence analysis, ternary