Results : ( 1 ) obtained the levels of monoamine transmitters and their metabolites in the cerebrospinal fluid ( csf ) , spinal perfusate and dorsal half of the spinal cord ; ( 2 ) observed that 5 - ht , na and da existed in the dorsal half of the spinal cord , but only na could be detected in all samples of the csf and spinal perfusate , da could be detected in part of samples ; ( 3 ) the contents of the metabolites of monoamine transmitters are higher than their corresponding transmitters in the csf and spinal perfusate 结果： ( 1 )分别测得了大鼠脑脊液、脊髓灌流液和脊髓背部组织提取液中单胺类递质及其代谢产物的含量； ( 2 )在大鼠脊髓背部组织中同时含有5 -羟色胺、去甲肾上腺素和多巴胺，但在脊髓灌流液和脑脊液中只能检测到去甲肾上腺素，部分样品中能测到多巴胺； ( 3 )递质代谢产物在脑脊液和脊髓灌流液中的含量均高于其对应的递质。
