Non - ionic surface active agents . polyethoxylated derivatives . iodometric determination of oxyethylene groups 非离子表面活性剂.聚乙氧基衍生物.氧化乙烯基团碘量的测定
An amphiphilic compound has a polar head which dissolves in water ( hydrophilic ) and a water insoluble organic tail 双亲分子有一个能溶解在水中的极性基团和一个疏水尾。
Solution vinyl are thermoplastic , but some cross - linking may be accomplished when reactive groups are present 可溶解乙烯基树脂是热塑性树脂,当有反应基团存在时,可发生交联反应。
Standard test method for calculation of carbon distribution and structural group analysis of petroleum oils by the n - d - m method N - d - m法计算石油中碳分布及结构基团分析的标准试验方法
Modified starch - determination of content of carboxymethyl groups in carboxymethyl starch iso 11216 : 1998 ; german version en iso 11216 : 1998 改良淀粉.羧甲基淀粉中羧甲基团含量的测定
A detailed discussion of amorphous alloy catalyst in hydrogenation of unsaturated compound is presented 对于非晶态合金催化剂在含有不饱和基团化合物加氢反应中的研究、应用进行了阐述。
That biochemical role is for the enzyme to remove the phosphates from two phosphate - bearing amino acids on the protein 此生化作用是该酶从该蛋白质的两个磷酸化氨基酸残基上移除的磷酸基团。
It is an important precursor of several amino acids , and also acts as a source of the amino group in various metabolic reactions 它是许多氨基酸的重要前体,也是许多反应的氨基基团的来源。
Lodometry method was used to measure the content of the hydroperoxide groups on the membrane surface 采用碘量法测定了plla膜表面大分子过氧化氢基团的浓度,并考察了氧化时间和氧化温度的影响。
It has shown that on untreated fiber surfaces , the high modulus fiber has much less functional groups than the low modulus fiber 研究表明,高模量碳纤维的表面化学基团含量要比低模量碳纤维的低。