大孔

We investigated constituent of triterpenoid saponins ofAlbizzia, two new compounds together with two known compounds were isolated from Albizzia julibrissin Durazz. by using column chromatography (macroreticular resin, silica gel, Sephadex gel, reverse phase silica gel),preparative HPLC methods et al.On the basis of spectroscopic analysis, including IR,ESI-MS,~1H-NMR,~(13)C-NMR,HMBC,HMQC,~1H-~1HCOSY and chemical methods, the structure of two new compounds were identified as 3 - O -[β-D-xylopyranosyl(1→2)-β-D-fucopyranosyl (1→6)-β- D -2- deoxy - 2 - acetoamidoglucopyranosyl] -21-O-[(6S)-2- trans- 2,6-dimethyl - 6 - O-β- D - quinovopyranosyl -2,7- octadienoyl] - acacic acid- 28 - O-β-D-glucopyranosyl(1→3)[α-L-arabinofuranosyl(1→4)]-α-L-rhamnopyranosyl(1→2)-β-D-glucopyranoside acacic acid 3- O -β- D- glucopyranosy(1→3)-β- D- fucopyranosl(1→6) [β-D- xylopyranosyl (1→2)]-β-D-glucopyranoside ;two known compounds were acacic acid lactone 3- O -β-D- xylopyranosyl-(1→2)-β-D-fucopyranosl (1→6)- 2-deoxy -2 -acetoamido -β-D- glucopyranoside ; acacic acid lactone 3- O-β-D-xylopyranosyl(1→2)-α-L- arabinopyranosl (1→6)- 2- deoxy - 2- acetoamido -β-D-glucopyranoside . The study lays chemical foundation and chemical reference substance for enhancing quality standard of Albizzia julibrissin Durazz.

本研究论文在综述国内外对合欢属Albizzia三萜皂苷化学成分和药理作用研究进展的基础上，利用传统植化分离手段和现代分离技术，包括大孔树脂、硅胶、葡聚糖凝胶、反相硅胶等柱色谱，制备高效液相色谱法等技术从中药合欢皮中分离得到了4个化合物，其中，2个新化合物和2个己知化合物，并进一步通过现代分析技术IR，ESI-MS，~1H-NMR，~(13C-NMR，HMBC，HMQC，~1H-~1HCOSY等和化学方法鉴定了2个新化合物的结构分别是：3-O-[β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖基]-21-O-[(6S)-2-反式-2，6-二甲基-6-O-β-D-吡喃鸡纳糖基-2，7-辛二烯酸基]-金合欢酸-28-O-α-L-呋喃阿拉伯糖基(1→4)[β-D-吡喃葡萄糖基(1→3)]-α-L-吡喃鼠李糖基(1→2)-β-D-吡喃葡萄糖苷，金合欢酸3-O-β-D-吡喃葡萄糖基(1→3)-β-D-吡喃夫糖基(1→6)[β-D-吡喃木糖基(1→2)]-β-D-吡喃葡萄糖苷；2个已知化合物结构分别是：金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷，金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-α-L-吡喃阿拉伯糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷。

Objective To study the purification technology of anthraquinone aglycone from Cassiae obtusifolia seeds by macroporous adsorption resin.

目的探索决明子蒽醌苷元的大孔吸附树脂纯化工艺。

After removed ethanol, the solids was dissolved by 0.25% hydrochloric acid, After decolorizated under acidic conditions, the solution was transferred into alkaline, then alkaloids were eluted from the aqueous layer by using D101 macroporous resin.

回流除去乙醇后用0.25%盐酸复溶，在酸性条件下脱色后再将溶液调成碱性，经D101大孔树脂洗脱分离得到总生物碱。

Aim To study the technology for purification of total flavonoids from artemisia argyi with different types of macroporous resin.

目的研究不同型号大孔树脂纯化艾叶总黄酮的工艺条件及参数。

The method is simple and rapid with high recovery of lignans and can be used for the preparation in large scale.

用大孔树脂提取和纯化五味子总木脂素的方法在保留五味子中有效成分的同时，显著降低固形物得率，可用于工业推广。

The combination of NKA-9 macroporous resin and Toyopearl TSK HW-40S column chromatography for separation and purification of blood orange anthocyanins is an effective method, and HPLC-ESI/MS analysis is a convenient, rapid and effective method for identification of anthocyanins from blood orange.

NKA-9大孔树脂与Toyopearl TSK HW-40S凝胶柱层析相结合，可以有效分离纯化血橙中花色苷，HPLC-ESI/MS分析可以方便、快捷、有效地为花色苷的鉴定提供依据。

The behavior of static adsorption and desorption, dynamic adsorption and desorption of twelve kinds of resins was compared. Toyopearl TSK HW-40S colunm was employed to separate and purify the anthocyanin extracts from blood orange.

分别采用12种不同类型树脂对血橙花色苷静态和动态吸附解吸试验进行比较，优化了大孔树脂提取分离血橙花色苷的工艺，采用Toyopear1 TSK HW-40S柱层析对血橙花色苷提取物进一步分离纯化。

Traditional block has the construction requirements of constructional column, tensile inarch bar, castinplace concrete ring beam, and it is diffic ul t for construction and to assure the construction quality, moreover, the period is long. However, the core column and beam of new concrete hollow block with mac roporous lightweight aggregate adopt Ushape block to instead of traditional te c hniques. This technology reduces the process of formwork and binding reinforceme nt, and has the characteristics of convenient operation, rapid construction spee d, strong crack resistance, lower cost, and good insulation properties, and so o n.

摘要］ 传统的砌块有构造柱、拉结筋、现浇混凝土圈梁等施工要求，施工难度大、施工工期长、且施工质量不容易得到保证；新型材料大孔轻集料混凝土空心砌块芯柱以及芯梁采用 U形砌块代替传统工艺要求，减少了支模、绑扎钢筋等工序，还具有使用方便，施工速度快，抗裂性强、节约成本、保温绝热性能好等施工优点。

Methods: NG108-15 cells were cultured in vitro at 37℃in a humidified atmospherecontaining 5％CO_2. Aβ_(25～35) fragment was dissolved with deionized distilledwater and aged for 4 days at 37℃. The cells were exposured to 5μmol/LAβ_(25～35) for 24h to establish the cell model. Twelve rabbits were divided intotwo groups at random, and garaged with MWD or physiological saline controlrespectively for 7 days to collect two kinds of cerebrospinal fluid, theyare CSF from rabbits treated with MWD and CSF from rabbits treated withphysiological saline.

NG108-15细胞在37℃、体积分数为5％的CO_2培养箱中培养，Aβ_(25～35)溶解于双蒸水中，置于37℃培养箱中老化4d，使其寡聚，毒性增强，细胞被置于浓度为5μmol／L的Aβ_(25～35)中作用24h，建立起AD细胞模型。12只清洁级大耳白家兔购于华中科技大学同济医学院动物中心，将其随机分成两组，分别给与等量的加味温胆汤和生理盐水灌胃7d，末次给药后1h内用水合氯醛将给药组白兔麻醉，1.2ml／kg，无菌条件下用7号注射针头从枕骨大孔处垂直进针，抽取清亮含药脑脊液。

Resin HZ-818 has large adsorption capacity and high elution ratio, which can concentrate reserpine solution over 50 times.

HZ-818型树脂对利血平的吸附量大，解吸率高，通过大孔树脂吸附和解吸，利血平浓度提高50倍以上，适宜于工业化生产。

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。