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Aiming at above problem, this paper put forward the strategy of separation as follows. Firstly, in view of great amount of coloring matter in solution, the quality of product is declined. So we decolor the solution by acticarbon, which makes 80% coloring matter be removed, but the loss of nucleotides is only about 2%. Secondly, on the basis of physical and chemical properties of four nucleotides, we first synthesized a kind of cation exchange resin by ourselves which is used to separate four matters preliminarily.

针对以上问题，本文提出了如下的分离策略：首先，由于酶解液中色素含量较多，使经树脂分离所得UMP和GMP中色素残留较多，最终导致成品质量的下降，所以我们用活性炭对酶解液进行脱色处理，使溶液中80％以上的色素被吸附除去，而核苷酸的吸附损失仅为2％左右。

The method uses water to boil pure heavy law to undertake to Tibetan angelica polysaccharide thick carry, with Sevag reagent and shade, cation commutative law contrasts rarefied thick polysaccharide.

方法采用水煮醇沉法对西藏当归多糖进行粗提，用Sevag试剂和阴、阳离子交换法对比纯化粗多糖。

The interactions among the three active sites---N3, 04 and 05 in the most stable conformer of glycine and the three mono-value cations--~ Li~ and Na~ are investigated at the R0B3P86/6-3 1 G* level. Their relative binding strength and the binding order are compared and analyzed when the same active site reacts with three different cations or the same cation reacts with three different active sites, respectively.

利用限制性的DFT方法和6-31G基组函数，考察了甘氨酸的最稳定构象中的三个活性位：N3、O4和O5与单价阳离子H~+、Li~+和Na~+相互作用的情况，比较分析了三活性位与同一阳离子相互作用时的相对强弱和同一活性位与三个不同阳离子作用时的成键顺序。

The nature and strength of the cation-π interactions between and toluene, p -cresol, or Me-indole were studied in terms of the topological properties of molecular charge density and binding energy decomposition.

本文通过电荷密度的拓扑性质和结合能的能量分解两个方面研究了NH4+与甲苯、对甲基苯酚以及甲基吲哚间阳离子-π相互作用的大小及其作用本质。

Then a mixed dimmer intermediate is formed through the cross-reaction of OAP and AN cation radicals with their monomers in solution.

在研究不同浓度比的AN和OAP进行电化学共聚时发现，当溶液中OAP浓度增大时，对AN的聚合会产生抑制作用。

Cucurbit[6]uril adducts with metal cation and naphthylamine in the water, be a new supramolecular adducts.

在水溶液中，六元瓜环与金属阳离子及萘胺发生作用，形成一种新颖的超分子配合物。

Purpose To compare the effects of three different cation exchange resins for purifying Cytochrome C.

目的 比较3种不同树脂纯化细胞色素C的效果。

The impacts of environmental factors, including temperature, pH, cation, denaturant and protease on the enzymatic activity of PEG ylated RNase, were investigated in detail.

研究了温度、pH、阳离子、变性剂、蛋白酶降解等环境因素对PEG化RNase酶活性的影响。

In this case, denatonium would depolarize taste cells by removing the camp block of the cation channels, allowing influx of cations. Denatonium has also been shown to activate PLC, presumably by activating a Gq-like G protein.

研究人员发现在味蛋白缺陷（gustducin-knockout）的小鼠仍能感受某些苦味物质[7]，进一步研究发现味觉细胞的胞膜上存在能识别苦味的苦味受体（TAS2Rs或T2Rs）[8-11]。

After the contrast experiment, the 732 cation resin is used to depurate the GSH solution, the concentration of the eluant is the 0.2 mol/L NaOH solution, the GSH maximum returns-ratio is 68.37%.

经过对比试验采用732阳离子交换树脂进行谷胱甘肽粗提液的纯化，洗脱液选择浓度为0.2 mol/L的NaOH溶液，谷胱甘肽最大回收率为68.37%。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。