本文采用非离子型表面活性剂曲通X-100对苯基萤光酮法测定锡进行了试验。结果表明:在乙酸-乙酸钠缓冲液中,络合物10分钟内即可完全显色,并至少稳定5小时,其最大吸收波长为510nm;曲通X-100溶液稳定,受温度影响小,代替动物胶作分散剂,提高了灵敏度,表观摩尔吸光系数1.33×10~5,0—6微克锡/25毫升范围符合比尔定律。结合碘化物萃取 In this paper, non-ionic surfactant Triton X-100 phenylfluorone method for the determination of tin were tested. The results showed that the complex could be completely colorized within 10 minutes in acetic acid-sodium acetate buffer solution and stable for at least 5 hours with a maximum absorption wavelength of 510 nm. The Triton X-100 solution was stable with little influence of temperature, Instead of animal glue as a dispersant to improve the sensitivity, the apparent molar absorption coefficient of 1.33 × 10 ~ 5,0-6 μg tin / 25 ml range in line with Beer’s law. Combined with iodide extraction