Ruffo C, Galli E, Arpino A
Ecotoxicol Environ Saf. 1984 Jun;8(3):275-9. doi: 10.1016/0147-6513(84)90030-7.
Pyridine and nitrilotriacetic acid sodium salt as models of soluble compounds and linear dodecylbenzene, branched dodecylbenzene, and stearic acid as models of insoluble compounds were compared for their biodegradability in three tests: the ODCE modified test and the Sturm and enrichment culture tests. The degradation of soluble compounds was measured as dissolved organic carbon removal and CO2 evolution, while for the insoluble compounds, which were tested only in the Sturm test, CO2 evolution was determined. The individual tests were characterized by comparing their results with those obtained in the others. Comparable biodegradation values higher than 90% were obtained for the soluble compounds. The Sturm test proved to be very suitable for the evaluation of biodegradability of either soluble or insoluble compounds.
以吡啶和次氮基三乙酸钠盐作为可溶性化合物的模型,以直链十二烷基苯、支链十二烷基苯和硬脂酸作为不溶性化合物的模型,在三项试验中比较了它们的生物降解性:经修改的ODCE试验以及斯特姆试验和富集培养试验。可溶性化合物的降解以溶解有机碳去除率和二氧化碳释放量来衡量,而对于仅在斯特姆试验中测试的不溶性化合物,则测定其二氧化碳释放量。通过将各项试验的结果与其他试验的结果进行比较来表征这些单独的试验。可溶性化合物获得了高于90%的可比生物降解值。事实证明,斯特姆试验非常适合评估可溶性或不溶性化合物的生物降解性。