查询词典 oxalate

D-Pantothenyl alcohol, also called ortho-vitamin 85, is an important nutrition suppled substance. It has been widely applied in the field such as medicine, cosmetic, foodstuff, feed additive, and so on. The preparation of D-pantothenyl alcohol and the optimization of key factor are discussed mainly in this paper. It mainly includes three section.In the first section, with formaldehyde, isobutyl aldehyde and diethyl oxalate as the starting materials, D-pantolactone is prepared via three steps including condensation, catalytic hydrogenation and physical resolution. The specific rotatory power of the product is consistent with imported product.

D-泛醇，俗称原维生素B_5，属维生素B旋类营养增补剂，广泛应用于医药、化妆品、食品、饲料等领域，本文着重探讨了其制备及关键因素的优化，主要内容可分三部分：第一是D-泛内酯的制备，先以甲醛、异丁醛和草酸二乙酯为起始原料合成酮基泛内酯，再经催化氢化得到DL-泛内酯，然后通过物理拆分获得D-泛内酯，得到产物的比旋光度与进口产品基本一致。

The effect of the concentration, pH of several ligands such as acetate, oxalate, tartrate and phosphate solution and their orders added on the adsorption and activity of BSA and acid phosphatase on yellow brown soil, latosol, kaolinite, goethite and -MnO2 was first systematically studied by using batch and FTIR methods after analyzed and studied the relative literature that reported in the world.

论文在分析总结了国内外有关研究的基础上，用批量法和傅立叶变换红外光谱法首次系统地研究了乙酸、草酸、酒石酸和磷酸几种配体的浓度、pH及加入顺序对牛血清白蛋白、酸性磷酸酶在黄棕壤、砖红壤、高岭石、针铁矿和二氧化锰表面的吸附行为及活性的影响，探讨了这些配体对蛋白吸附机理及二级结构的影响。

The effect of the concentration, pH of several ligands such as acetate, oxalate, tartrate and phosphate solution and their orders added on the adsorption and activity of BSA and acid phosphatase on yellow brown soil, latosol, kaolinite, goethite and δ-MnO〓 was first systematically studied by using batch and FTIR methods after analyzed and studied the relative literature that reported in the world. The impact of these ligands on the adsorption mechanism and secondary structure of protein was simultaneously engaged.

论文在分析总结了国内外有关研究的基础上，用批量法和傅立叶变换红外光谱法首次系统地研究了乙酸、草酸、酒石酸和磷酸几种配体的浓度、pH及加入顺序对牛血清白蛋白、酸性磷酸酶在黄棕壤、砖红壤、高岭石、针铁矿和二氧化锰表面的吸附行为及活性的影响，探讨了这些配体对蛋白吸附机理及二级结构的影响。

Protein, fat, ammonium oxalate are all main pharmacological composition.

白僵蚕中的蛋白质、脂肪酸、草酸铵等都是重要的药理活性成分。

The effect of amount of ammonium oxalate addition on the crystallizing performance of the samples of Sr2CaWO6 and Sr2CaMoO6 was investigated.

考察半湿法合成Sr2CaMO6和Sr2CaMoO6前驱体时草酸铵加入量对样品性能的影响。

Urine was collected for 24 hours exactly after the intravenous dose of 〓. Urinary calcium was precipitated by using ammonium oxalate.

收集给药后24小时内的全部尿液，并用草酸铵沉淀法提纯尿液中的钙。

In this paper, we successfully developed a novel approach for the preparation of N-doped TiO2 photocatalysts by calcining ammonium titanium oxalate at different temperatures.

这篇文章报道了利用草酸氧钛铵(NH42TiO(C2O4)2在不同温度的控制分解来制备N掺杂TiO2光催化剂的新方法。

Objective An extraction process for pectin from pineapple residue was studied using ammonium oxalate as the extraction solvent combined with ultrasonication.

目的：探讨采用草酸铵作为提取溶剂和超声波振荡处理法提取菠萝皮渣果胶的工艺条件。

The amount of bacteria in cuhure was detected, the concentration of ammonium oxalate was detected through photometric determination of oxalic acid by its catalytic reaction of methyl red by potassium chromate.

经过72h培养，所有培养基中的草酸浓度都有不同程度的下降，但乳酸菌组的降幅明显大于对照组，其中嗜酸乳杆菌组的降幅最大。

Kenaf phloem bundle fiber layers were separated with a acidified sodium chlorite treatment with an additional ammonium oxalate treatment.

采用亚氯酸钠冰醋酸和草酸铵处理，将不同部位的红麻韧皮部束纤维进行分层，并-测定各束纤维层的纤维细胞长度，探讨红麻韧皮部纤维细胞长度的分布规律。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。