观察一周,动物全部存活,活动正常,未见任何中毒症状。按急性毒性分级标准,该受试促排铅饮液属于无毒级类物质。表7-18显示出促排铅饮液以及大豆肽+促排铅饮液对小鼠血液中铅的影响。促排铅饮液以及饮液+肽对20天血液中铅的影响见图7-27。表7-18实验20天时促排铅饮液对小鼠血液中铅的影响(n =。图7-27促排铅饮液以及促排铅饮液+肽对20天血液中铅的影响Fig . 7-27 Effect of drink of eliminating Pb and drink of eliminating Pb + pe ......