1·Ethylene glycol diacetate was synthesis from ethylene glycol and acetic acid by using p-toluene sulphonic acid as catalyst.
以对四苯磺酸为催化剂，由乙二醇和乙酸合成了二乙酸乙二醇酯。
2·The invention relates to a preparation method of a heavy metal ion imprinting polymer porous small ball and a film based on sulphonic acid resin.
本发明涉及一种基于磺酸树脂的重金属离子印迹聚合物多孔小球及膜的制备方法。
3·Glycerol triacetate was synthesized from glycerol and acetic acid using p -toluene sulphonic acid as catalyst and toluene as water-carrying agent.
以丙三醇和乙酸为原料，用对甲苯磺酸作催化剂，甲苯为带水剂，合成三醋酸甘油酯。
4·Methane sulphonic acid (MSA) has the right combination of properties for electroplating baths containing lead, tin, copper, nickel and some precious metals.
在含有铅、锡、铜、镍和一些贵金属的电镀池中，甲磺酸(msa)是一种很好的电解质。
5·The study on synthetic detergent agent of highly basic magnesium sulphonic acid was described, including the synthetic method, quality indices and properties.
介绍了高碱性合成磺酸镁的研究、该添加剂的合成方法、质量指标及性能。
6·Dibutyl oxalate was synthesized with oxalic acid and n-butanol as raw materials and p-toluene sulphonic acid supported on granular active carbon as the catalyst.
以草酸和正丁醇为原料，采用颗粒状活性炭固载对甲苯磺酸作催化剂合成草酸二丁酯。
7·The contents of total amino acids, total phosphatide and sulphonic acid increased, but calcium and phosphorus decreased gradually from lower to upper part of the velvet.
氨基酸总量及总磷脂、牛磺酸含量从鹿茸基部到顶部逐渐增加，钙、磷含量从基部到顶部逐渐减少。
8·This paper studied the determination of Aluminium in vermicelli by fluorimetry based on the micellar enhancement system of Aluminium with 8 Hydroxyquinoline 5 Sulphonic acid and CTMAB.
采用铝- 8 -羟基喹啉- 5 -磺酸- CTMAB胶束增敏体系，用荧光法测定了食用粉条中微量铝的含量。
9·A new method of simultaneous separating and determining tetrafluoroborate, p-toluene sulphonic acid, sulfate radical and 1,4-Butanedisulfonie acid by ion chromatography was established.
采用离子色谱法同时测定合成药物中存在的四氟硼酸根、对甲基苯磺酸根、硫酸根、1，4-丁二磺酸根4种离子。