In this paper the isoelectrofocusing on polyacrylamide thin slab-bed was studied systematically and the method suited for analyzing photographic gelatin was established.

通过对聚丙烯酰胺薄层平板等电聚焦电泳的系统研究，建立了一套适合于分析明胶等电点分布的薄层平板等电聚焦电泳技术。

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Modified gelatin is widely used as coagulating agent in photographic emulsion-making, but the coagulation mechanism is still obscure.

改性明胶已经被广泛地用作感光乳剂的沉降剂。

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