序言在照相乳剂的制备中,硫代硫酸盐是明胶中最重要的天然成熟物之一。已知的分析方法有以下几种: 滴定法: 主要讨论了明胶溶液用硝酸银作电位滴定的方法,部份还与反应时间有关。Abribat等曾发表过有关论文。比色法: sheppard等曾提出过由硫代硫酸盐经硫化银和硫化氢,用不同的方法形成亚甲蓝的络合比色测定法。Requardt的方法是在硫代硫酸盐和硫 Preface In the preparation of photographic emulsions, thiosulfate is one of the most important natural ripeners in gelatin. Known analytical methods are the following: Titration: The main discussion of gelatin solution with silver nitrate for titration method, some also related to the reaction time. Abribat et al. Have published papers. Colorimetric methods: Sheppard et al. Have proposed a complexometric assay for the formation of methylene blue from thiosulfate with silver sulfide and hydrogen sulfide using different methods. Requardt’s method is in the thiosulfate and sulfur