关键词: 实验动物, 垫料, 重金属, 化学物

Abstract: Objective To determine and compare the levels of several heavy metals and harmful chemicals in 10 kinds of laboratory animal bedding materials come from experimental animal unit in Guangdong,so as to provide users with reference.Methods The pollution levels of 5 kinds of heavy metals and 3 kinds of harmful chemicals were detected according to the current methods.Results Aflatoxin B1 was detected in all the samples,but it did not exceed the standard requirements.The lead content in 3 beddings exceeded the standard requirements,and the heavy metal chromium pollution was detected in 9 bedddings.Conclusion The results can be used as reference for the purchase and use of bedding,and can also provide reference for the establishment of local standards.

Key words: Experimental animals, Bedding, Heavy metals, Chemicals