a novel strong acidic ion-exchange fiber was firstly prepared by the friedel-crafts crosslinking and sulfonation of commercial pps fibers, and the novel fibrous material had high exchange capacity and good chemical stability performance.

the main topic of this paper is about the innovative two-step reactive extrusion method. it can avoid the confrontation between the additives, when the waste polymer materials ( mostly recycled hdpe bottle cap materials) are reused.

本课题主要针对废弃高分子材料（主要是回收HDPE瓶盖料）再利用时遇到的问题，创新性的采用两步反应挤出法，避免了传统一步反应挤出法中添加剂之间的对抗作用。

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preparation of 10-hydroxy camptothecin ( hpt) by camptothecin ( cpt) through oxidation and photoactivation was studied.

文中采用半合成法对10羟基喜树碱的制备进行了研究，以喜树碱为原料，通过氧化和光化两步反应得到HPT初产品。

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the ac impedance spectra showed that the electro-deoxidation reaction of silicon dioxide is a two-step reaction and corresponding to the two reduction current peaks in the cyclic voltammetry curve.

交流阻抗谱表明，SiO2电脱氧为单质硅的反应是两步反应，与循环伏安曲线上的两个还原电流峰相符合。

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it was shown that the adsorption processes of hsa and lysozyme could be described by a kinetic equation involving two consecutive reactions.

结果表明，HSA和溶菌酶的吸附过程可以用包含两步反应的动力学方程来描述。

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a study on direct synthesis of acetic acid from cbm and co_2 by two-step reaction sequence in the way of "short contact" and in the presence of water

短接触和水蒸气存在下的煤层CH4和CO2两步反应直接合成乙酸的研究

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a flame-retardant nitrogen-containing curing agent was synthesized by melamine, formaldehyde and phenol through two reactions.

以三聚氰胺、甲醛和苯酚为原料经两步反应，制得了一种环氧树脂的含氮固化剂（三聚氰胺改性酚醛，MPF）。

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then in the same way, we prepared the sulfonic mesoporous molecular sieve in two steps.

随后用同样方式，通过两步反应，合成磺酸型MCM-41介孔分子筛。

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hiv-1 integrase ( in) integrates viral dna into host cells through two steps metal ions-dependent reactions.

HIV-1整合酶（IN）通过依赖金属离子的两步反应将病毒DNA整合入宿主细胞中。

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methods the target compound was synthesized by two steps with 4-hydroxy-6-methyl-2-pyrone and n, n-dimethylformamide dimethyl acetal as the starting materials.

方法以4羟基6甲基2吡喃酮、N，N二甲基甲酰胺二甲氧基缩醛为起始原料，经两步反应制得目标化合物。

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study on ch_4-co_2 two-step reaction and co_2 hydrogenation by a short contact way

短接触CH4-CO2两步反应和CO2加氢研究

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diagnostic significance of plasma prolidase activity in chronic liver diseases

血浆脯氨酸肽酶活性测定在慢性肝病诊断中的意义

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a modified method for superoxide dismutase activity measurement. dai

超氧化物歧化酶活性测定的一种改进法

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research of serum γ-glutamyltranspeptidase in laryngeal cancer diagnosis and prognosis

喉癌患者血清γ－谷氨酰转肽酶活性测定

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detection and analysis of serum prolidase activity in viral hepatitis

病毒性肝炎患者血清脯氨酸肽酶活性测定及其意义分析

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studies on testing conditions of-d-glucosidase activity in tea

茶叶中β-D-葡萄糖苷酶活性测定条件的研究

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measurement of serum biotinidase activity in hepatic disease and its significance

肝硬化患者血清生物素基酶活性测定及其临床意义

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research on chromogenic peptide in determination of prekallikrein/ kallikrein activity

发色多肽用于前激肽释放酶活性测定的研究

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determination of the serum catalase activity in patients with liver diseases

肝病患者的血清过氧化氢酶活性测定初探

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it was proved that the osazone sulfuric acid development method ( osadm) is a quite ideal dahps activity assay method, according to the osazone's absorption map, the linear relations, detecting limit.

根据糖脎的物质吸收图谱、线性关系、最小检出限等方面都证明糖脎硫酸显色法是一种比较理想的DAHPS的酶活性测定方法，并确定此法为测定酶活性的第三种方法。

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for enzymatic assay, samples were dissolved in distilled water and aliquots of solution were mixed with tmb and h2o2. kinetics of enzymatic reaction was recorded at 700 nm and hrp activity was calculated in respect to the kinetic curve using fresh-prepared hrp as a control. 3.

酶活性测定时，样品用双蒸水溶解，吸取样品溶液，与TMB和H2O2混和后于700nm处测定反应反应进程曲线，以含有等量新配制HRP的反应体系为对照，计算酶的相对活性。

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