【摘要】 应用GC MS联机检测技术对水稻土施用城市污泥盆栽通菜 (Ipomoeaaquatic)后土壤中 6种邻苯二甲酸酯化合物 (PAEs)进行分析 .结果表明 ,盆载通菜土壤中 6种PAEs的总含量 (∑ PAEs)在 7 6 6 7— 4 0 0 2 5mg kg之间 ,平均为 2 6 137mg kg ,其高低次序为 :佛山污泥 >广州污泥 >佛山污泥加化肥 >广州污泥 +化肥 >空白 >化肥 .与空白对照相比 ,施用污泥和污泥 +化肥处理的土壤中 ∑ PAEs含量显著提高 ,但单施化肥的土壤中 ∑ PAEs含量降低 .不同处理土壤中的PAEs化合物是以一种或两种化合物为主 ,主要是DnBP和 或DEHP ,显示了不同的PAEs分布特征 .更多还原

【Abstract】 Six phthalic acid esters(PAEs) classified as US EPA priority pollutants in paddy soil fertilized with municipal sludges and chemical fertilizers for Ipomoea aquatic were determined by GC/MS.The results showed that the total content of six PAE compounds(∑PAEs)ranged from 7.667?mg/kg to 40.025?mg/kg,averaging 26.137?mg/kg,decreasing in the order of Foshan sludge>Guangzhou sludge Foshan sludge+chemical fertilizer>Guangzhou sludge+chemical fertilizer>control>chemical fertilizer.Compared with control,concentration of PAEs in the soil fertilized with sludge or sludge+chemical fertilizer increased significantly.Among the six PAEs,only one or two (DnBP or/and DEHP)of them were predominant,which showed different distribution patterns.更多还原