大孔

Objective: To purify caffeic acid tetramer with macroporous resin on the basis of its fundamental physicochemical stability research.

中文摘要：目的：初步研究咖啡酸四聚体的理化稳定性的基础上选择合适的大孔吸附树脂，去除杂质，提高紫草水溶性部分中有效成分咖啡酸四聚体的含量。

Static absorption test was adopted to screen 8 macro porous resins and single factor test, orthogonal test and variance analysis were adopted to determine optimal operational conditions for decolorizing chicory inulin.

运用静态吸附试验对8种大孔树脂进行筛选，通过单因素试验、正交试验和方差分析确定了菊苣菊粉脱色的最佳操作条件。

The dynamic adsorption ability of XDA-1 style macroporous adsorption resin to chloroform in water was researched in this paper.

结果显示，采用XDA-1大孔树脂吸附水中的氯仿，其吸附效率可达99%以上，泄漏点前的吸附量为160mg/ml。

Objective The microwave assisted synthesis was integrated with macroporous resin catalysis to prepare isobutyl cinnamate from cinnamic acid.

目的研究微波大孔树脂协同催化合成桂酸的新工艺。

Methods Static adsorption and desorption experiments were carried out to screen on three kinds of macroporous resins.

方法通过静态吸附与解吸实验对3 种大孔树脂进行筛选。

METHODS:Using Dual-wavelength TLC-scanning,the sample was prepared through the column full of D101 macroporous resin with n-butanol extract from the aque ous solution of the granules which had been washed by ether,developer is chloroform-methanol-water(13∶10∶7)(stored at less than 10℃,the lower),detecter is 510nm,reference is 700nm.

双波长薄层扫描法，经乙醚洗涤、正丁醇提取和D101大孔吸附树脂柱层析法制备样品，以氯仿-甲醇-水(13∶7∶2)下层液为展开剂，检测波长为510nm，参比波长为700nm。

Digoxin was selected as digitoxin adsorbed with HA-2 and HA-3 macroporous resins screened from 7 kinds of resins.

从7种大孔吸附树脂中筛选出HA－2型和HA－3型2种吸附剂，考察它们对洋地黄强心甙──地高辛具有较好的吸附性能。

The results of experiment show the optimal extraction condition of Gardenia Yellow: refluxing and extracting three times with 50 percent ethanol in 55℃, water-bath and extracting 4 to 5 hours, Gardenia Yellow extract solution is separated by X-5 absorption resin, and then with 30 percent ethanol, getting Geniposide white crystal, the determining purity by HPLC come to 99.1% and can be used as standard, the part doffing by 70% ethanol can be concentrated to get more pure Gardenia Yellow pigment.

实验证明了栀子黄的最佳提取条件：50%的乙醇回流提取3次，55℃水浴加热，提取时间为4-5个小时。栀子黄提取液经X-5大孔吸附树脂分离，用30%乙醇溶液洗脱，纯化得到栀子苷白色晶体，HPLC检测纯度达99.1%，可做标准品使用。70%乙醇洗脱部分浓缩可得栀子黄产品，精制后产品纯度有显著提高。

Three parts of eluates, 20%, 50% and 95% ethanol eluate were obtained, separately.

结果甲醇直接提取所得到的共有峰为7个，而经大孔树脂柱层析后50%乙醇洗脱物得到共有峰11个。

Methods The influence factors of pretreatment conditions were studied by orthogonal test according to the content of toluene and naphthalene in the eluate and its UV absorbance(254 nm).

方法采用正交试验设计以洗脱液中甲苯、萘的量及其紫外吸收值为指标(254 nm)，考察了D-101型大孔吸附树脂预处理过程中的影响因素。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。