Vanni A, Gamberini R, Calabria A, Nappi P
Dipartimento di Chimica Analitica, Università di Torino, Italy.
Chemosphere. 2000 Nov;41(9):1431-9. doi: 10.1016/s0045-6535(99)00555-x.
The main metabolites formed from Iprodione and Procymidone during the composting process have been isolated and identified by HPLC-DAD-MSD. After addition of the fungicides to the composting pile, we monitored the reaction of the two analytes and the formation of their degradation products for eight months. We verified the nature of the metabolites by comparison with those hypothesised in the literature and by comparison with the behaviour of an abiotic process in aqueous acetonitrile pH 6 and at 35 degrees C. After taking into account the different kinetic behaviours of the fungicides on degradation in compost and hydro-organic solution, breakdown pathways are proposed for biodegradation.
在堆肥过程中，由异菌脲和腐霉利形成的主要代谢产物已通过高效液相色谱-二极管阵列检测器-质谱联用（HPLC-DAD-MSD）进行了分离和鉴定。在向堆肥堆中添加杀菌剂后，我们对这两种分析物的反应及其降解产物的形成进行了八个月的监测。我们通过与文献中假设的代谢产物进行比较，以及与在pH 6的乙腈水溶液中、35摄氏度下的非生物过程的行为进行比较，来验证代谢产物的性质。在考虑了杀菌剂在堆肥和水-有机溶液中降解的不同动力学行为后，提出了生物降解的分解途径。
