This standard solution was accurately prepared in super-clean laboratory with p-xylene and sub-packed in 2ml ampoules.
本标准溶液以纯对二甲苯在超净实验室中准确配制并分装于2毫升安瓿中。
Purified terephthalic acid, one of the main raw materials of polyester, is produced by p-xylene liquid phase oxidation.
精对苯二甲酸是聚酯工业的主要原料，目前主要采用对二甲苯空气氧化法生产。
Results showed clearly that p-xylene had good biocompatibility as organic solvent in the two-phase system, its relative amount was 15%.
研究表明，二甲苯作为两相中的有机溶剂具有较好的生物相容性，加入量在总体积分数的15%；
Polymer grade p-phthalic acid can be synthesized by p-xylene directly oxidation in gas-liquid-solid reaction system with stirred tank reactor.
氧化工艺采用气液固系搅拌式氧化反应器，可由对二甲苯氧化直接制备聚合级对苯二甲酸；
The performance of the three catalysts was studied in the catalytic combustion of volatile organic compounds (benzene, toluene and p-xylene) via the Gas Chromatogram analysis.
以气相色谱为检测手段，用常压连续催化燃烧装置考察了这三种催化剂对甲苯、苯、二甲苯的催化燃烧性能。
Results:The effect on the ear tumefacient rat with xylene by different dosage of Berberine flocculant had no significant differentiae to the comparison(P>0. 05);
结果小檗碱凝胶剂不同剂量组对二甲苯所致的小鼠耳肿胀与对照比较无显著性的差异（P>0.05）；
A new antioxidant dithiodinglycol distearictate was synthesized starting from thiodiglycol and stearic acid using p-toluenesulfonic acid as catalyst and xylene as water carrier.
以硫代二甘醇和硬脂酸为原料，选用对甲苯磺酸为催化剂，二甲苯为带水剂，合成了新型抗氧剂硫代二甘醇二硬脂酸酯。
A new antioxidant dithiodinglycol distearictate was synthesized starting from thiodiglycol and stearic acid using p-toluenesulfonic acid as catalyst and xylene as water carrier.
以硫代二甘醇和硬脂酸为原料，选用对甲苯磺酸为催化剂，二甲苯为带水剂，合成了新型抗氧剂硫代二甘醇二硬脂酸酯。
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