方法 50只豚鼠随机分为空白对照组、溶剂（橄榄油）对照组、TCE处理组。
Methods 50 guinea pigs were randomly divided into blank control groups, solvent(olive oil) control groups and TCE sensitized groups.
当含水溶剂通过预柱在线净化后，根据空白梯度色谱图可测试有机溶剂的纯度。
When the aqueous solvent (solvent a) is cleaned up in terms of an on-line precolumn, the purity of the organic solvent (solvent b) can be tested according to the chromatogram of the blank gradient.
第4组左眼滴空白溶剂作溶媒对照；
Solvent without borneol was administered to the left eyes in the vehicle control group (group 4).
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