方法取ab - 8树脂分别经乙醇、丙酮处理前后的浸出液及经树脂吸附后的栀子洗脱液，以气相色谱法检测其中苯、甲苯、二甲苯、苯乙烯残留物的含量。
METHOD AB 8 resin was treated with alcohol and propanone and the extract was detected for the content of the residues of benzene, methylbenzene, xylene and styrene.
结果得出，吸附称量法误差最小，其次是气体方程计算法，误差最大的是气相色谱法。
The results showed that using the weighting of adsorption column could achieve the least error, and in the next place was calculation by State equation of ideal gas, the gas chromatography was…
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