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首页> 外文期刊>Journal of contemporary psychotherapy >Chemical fate and mutagenic formation potentials of phenothiazine and related compounds during water chlorination
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Chemical fate and mutagenic formation potentials of phenothiazine and related compounds during water chlorination

机译：吩噻嗪及相关化合物在水氯化过程中的化学命运和诱变形成潜力

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The reactions of hetero-tricyclic aromatic hydrocarbons (H-TCAHs) with hypochlo-rite in an aqueous solution were investigated under conditions that simulate wastewater disinfection. H-TCAH-hypochlorite reaction products were determined by gas chromatographic-mass spectrometric (GC-MS) analyses. For 20 muM, 10H-phenothiazine, 10H-phenoxazine, and phenoxathiin reacted rapidly with active chlorine in neutral pH (7.0), but no phenazine-hypochlorite reaction was observed over pH values of 5-9 for 1 hr. The 10H-phenothiazine-hypochlorite reaction began by oxidation with active chlorine to form its dioxides, followed by chloro-substitution in water. The extent of the reactions depended on the chlorine dose, solution pH and compound structures. Ames assays for the chlorination byproducts of 10H-phenothiazine and lOH-phenoxazine also showed to be weak mutagenicity in TA98 and TA100 strains without S9 mix, but no chlorination byproducts of phenoxathiin exhibited any mutagenicity in both tester strains with and without S9 mix.
机译：在模拟废水消毒的条件下，研究了杂三环芳烃（H-TCAHs）与亚氯酸盐在水溶液中的反应。 H-TCAH-次氯酸盐反应产物通过气相色谱-质谱（GC-MS）分析确定。对于20μM，在中性pH（7.0）中，10H-吩噻嗪，10H-吩恶嗪和吩沙星与活性氯迅速反应，但在5-9的pH值下1小时未观察到吩嗪-次氯酸盐反应。 10H-吩噻嗪-次氯酸盐反应开始于用活性氯氧化形成其二氧化物，然后在水中进行氯取代。反应的程度取决于氯的剂量，溶液的pH值和化合物的结构。在没有S9混合物的TA98和TA100菌株中，针对10H-吩噻嗪和10H-吩恶嗪的氯化副产物的Ames分析也显示出弱的致突变性，但是在有和没有S9混合物的两种测试菌株中，吩氧噻嗪的氯化副产物均未显示出任何致突变性。

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