Dissolved organic matter (DOM) in waters, soils, sediments, and organic waste is considered to have major role in the photochemical generation of emerging organobromine contaminants, yet mechanisms are unclear. Here we fractionated soil humic acids into bound quinone-like substances and an effluent fraction, using a new emodin-imprinted polymer. We tested the effect of these fractions on the photobromination of phenol with bromide. Results show that quinone-like substances induce three times more bromophenols than the effluent fraction. Our findings reveal a new method to separate reactive compounds from DOM and imply that formation of organobromine contaminants may be controlled by the composition of organic matter.

在水，土壤，沉积物和有机废物中溶解的有机物（DOM）被认为在新兴的有机溴污染物的光化学生成中具有重要作用，但机理尚不清楚。在这里，我们使用一种新的大黄素印迹聚合物将土壤腐殖酸分为结合的醌样物质和流出物。我们测试了这些馏分对苯酚与溴的光溴化作用的影响。结果表明，醌类物质所诱导的溴酚含量比废水中的三倍多。我们的发现揭示了一种将活性化合物与DOM分离的新方法，并暗示有机溴污染物的形成可能受有机物组成的控制。