This method is simple and needs no activator or surface modifier.
本工艺步骤简单，无需添加任何活性剂、表面改性剂等。
Traces of sulfate ions in etching solution for aluminum foil have been determined by turbidimetry in presence of cation surface activator-hexadecyl trimethyl ammonium bromide (CTMAB).
在阳离子表面活性剂——十六烷基三甲基溴化铵（CTMAB）的存在下，用比浊法对铝箔蚀腐液中微量硫酸根离子进行测定。
Sucrose ester is a good new-type surface activator widely used in food, medicine, detergent and cosmetics industries.
糖酯是一种优良的新型表面活性剂，被广泛地应用于食品、医药、洗涤剂、化妆品等工业中。
Lecithin, as a kind of important physiological activator and natural surface active agent, offers many advantages to health, and is widely used in the fields of food, pharmacy and cosmetic.
卵磷脂是重要的生理活性物质，也是一类天然的表面活性剂，广泛应用于食品、医药、化妆品等行业。
Lecithin, as a kind of important physiological activator and natural surface active agent, offers many advantages to health, and is widely used in the fields of food, pharmacy and cosmetic.
卵磷脂是重要的生理活性物质，也是一类天然的表面活性剂，广泛应用于食品、医药、化妆品等行业。
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