阴离子的

In this study,a HPLC system equipped with an Aminex HPX-87H column was applied to determine oxalic acid in bleaching filtrates.

本研究以一个基于阴离子交换柱的离子交换色谱法作为对照方法，利用一套配备了AminexHPX-87H液相色谱柱的高效液相色谱系统测定漂白废液中的草酸浓度。

The results show that the three kinds of sulfated fucans all had significant scavenging effects on free radicals.

结 果显示：(1)三种岩藻聚糖硫酸酯组分均有清除活性氧自由基的能力，但清除超氧阴离子自由基的能力高于清除羟基自由基的能力。

On the basis of investigating the developments of inorganic mesoporous material's syntheses and applications, mesostructured tin oxide, bismuth oxychloride, lead sulfide, bismuth sulfide, titanium phosphate and zinc phosphate were synthesized by Sol-Gel and hydrothermal techniques, employing the neutral surfactant organic amine and anion surfactant alkyl sulfonate as templates.

在对无机介孔材料的合成、应用等方面的发展现状进行了充分调研的基础上，本文运用溶胶一凝胶法、水热法等合成手段，选用中性表面活性剂有机伯胺和阴离子表面活性剂烷基磺酸盐为模板，制备了二氧化锡、氯氧化铋、硫化铅、硫化铋、磷酸钛、磷酸锌等无机介孔材料。

At present time people has found that various oxidants exist in injured cells, including peroxide and other free radical (eg: peroxide anion and hydroxide radical ion); these ROS also exist in abnormal cells arose from cell cleavage block and cell function loss.

目前已经发现，损伤的细胞中含有较多的各类氧化物，包括过氧化氢以及其它自由基(例如过氧化物阴离子和氢氧根离子)；在因细胞分裂阻断以及细胞功能丧失所引起的异常细胞中也含有这些活性氧类物质。

The synthetic technique of anionic surfactant sodium dodecyl diphenyl ether disulfonate was studied.The best reaction conditions were determined.Alkylation was carried out with n∶ n=5∶1 at 70 ℃ for 5 h to attain 82% yield.

研究了十二烷基二苯醚二磺酸钠阴离子表面活性剂的合成工艺，得出烷基化的最佳反应条件为：催化剂用量为n∶n =5∶1；反应时间 5h ；反应温度 70℃；二苯醚的转化率 82 %。

The paper compares four types of dyes using in China,they are basic dyes,alkali basic dyes,modified specific dyes and anionic direct dye s base in their performance and cost.

对基本染料、碱性基本染料、改进型专用染料和阴离子直接染料等国内市场常用的 4种染料的性能和成本进行了分析，并提出使用直接染料将是牛皮箱纸板染色的发展趋势。

The results were satisfactory and the detection limits of these anions were low.

该方法的结果令人满意，基线平直，检出限低，回收率在96%~104%之间，对于测定浓碱中的阴离子是一种很有效的方法。

To the two anions,the Molybdenum atoms pay an important role in their redox effects.

但在两种类型的硫钼杂多阴离子中，Mo对其氧化性的产生起了重要的作用。

In this doctoral dissertation, the effects of several dopants on phase separation in 〓 system were investigated under the regime of light doping level.

本论文主要研究了低浓度的阴离子和阳离子掺杂对〓系统中的相分离的影响。

In one embodiment of the invention, anion exchange chromatography of the vegetarian Protein A media produces a vegetarian Protein A eluant that contains an at least 95% pure Protein A.

在本发明的一个实施方案中，植物蛋白A培养基的阴离子交换色谱产生含有至少95％纯蛋白A的植物蛋白A洗脱液。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。