GC analytical method for o - chlorotoluene in the workplace air using sampling by charcoal tube was studied.

研究炭管采集空气中邻 - 氯甲苯的气相色谱分析方法.

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Taking p chlorotoluene as raw material , 2,4 Dichlorotoluene was synthesized via catalytic chlorination process.

以对氯甲苯为原料, 经催化氯化制取2,4二氯甲苯.

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