水溶液

The fourteen complexes of mandelic acid with rare earth elements in aqueous solution have been prepared.

在水溶液体系中，用苯羟乙酸直接与碳酸稀土作用，合成了十四种苯羟乙酸稀土配合物。

The product was immiscible with catalyst/water and could be separated simply by filtration after the reaction. This method is manipulatively simple, environment-friendly and the catalyst is reusable.

反应生成的取代氢化氧杂蒽与离子液体的水溶液不相溶，通过简单的过滤可实现产物与催化体系的分离，简化了分离过程，方法操作简便、环境友好、催化剂可回收并重复使用。

The present study used Hypersil Hypercarb as the column connected to the UV and ELSD detectors. Using 0.1% formic acid aqueous solution and methanol as the mobile phase, the composition of a total of 9 compounds, catalpol (9) in Rehmanniae Radix, 5-hydroxymethylfurfural (5-HMF)(8) in Rehmanniae Preparata Radix, and the various carbohydrates including glucose (1), sucrose (2), melibiose (3), manninotriose (4), raffinose (5), stachyose (6), and verbascose (7) in Radix were analyzed simultaneously within 60 minutes.

本文以Hypersil Hypercarb作为分离管柱，串联UV及ELSD检测器，使用0.1%甲酸水溶液及甲醇为流动相，於60分钟内可同时分析生地黄中的catalpol (9)、熟地黄中的5-Hydroxymethylfurfural (5-HMF)(8)，及地黄所属的各种醣类成分glucose (1)、sucrose (2)、melibiose (3)、manninotriose (4)、raffinose (5)、stachyose(6)、verbascose (7)共计9种化合物的含量。

The precursor of sodium titanate nanotubes is prepared by: reacting titanium dioxide, metatitanic acid or titanate ester in 20-80 wt.% NaOH aqueous solution at 100-140 deg.C for 12-72 h, washing with water, filtering and drying.

用于反应的前驱体纳米管钛酸钠由二氧化钛、偏钛酸或钛酸酯与20-80wt％NaOH水溶液在100-140℃反应12-72h后用水洗去NaOH，过滤、干燥制成。

AM - NaAMPS - DEAM terpolymer was synthesized from acrylamide, Sodium - 2 - acrylamido - 2 - methylpropane sulfonate and N,N - diethylacrylamide by free radical initiation copolymerization in aqueous solution.

以丙烯酰胺，2－丙烯酰胺－2－甲基丙碳酸钠，N，N－二乙基丙烯酰胺为单体，通过在水溶液中自由基引发共聚合，合成出了AM－NaAMPS－DEAM三元共聚物。

Micromeritics Instrument Corp. has developed the AquaPrep to help eliminate air bubbles during aqueous particle size analysis.

Micromeritics Instrument公司开发出一种名为AquaPrep的设备，其可以在对水溶液中颗粒进行尺寸分析时消除水中的空气气泡。

In addition, the optical microphotography showed that the dispersion of methylolated MWCNTs in water was improved significantly. And then, the dispersion of the grafted MWCNTs in xylene was enhanced remarkably.

光学图像分析表明，经甲醛处理后的MWCNTs在水溶液中的分散性明显提高，而马来酸酐酯化接枝后的MWCNTs在二甲苯中的分散性明显增强。

In addition, Pitzer theory was used to analyze the apparent molal volumes of single and mixed electrolyte aqueous solutions. The new Pitzer equation interaction parameters were evaluated. The working equatio...

另外，运用Pitzer理论，估算了不同温度下 39个单一电解质溶液的 Pitzer体积参数；用引入Pitzer体积混合参数与离子强度的关系式得到的方程对混合电解质水溶液的表观摩尔体积进行了计算，结果比较满意。

The method is characterized in that:(1) the reflux of the 2-[N, N- 2amino]-3-cyano-group-4-thiopheneacetic-5-carboxylic acid tetra ester is carried out in the proper sodium hydroxide aqueous solution of alcohol for 5h to 6h and the pH value is kept over 10 during hydrolysis;(2) the ethanol of 20 per cent to 60 per cent is added and then the strontium chloride aqueous solution with 2times to 2.5times molal weight is directly added, precipitates the crystal, is filtered and dried;(3) water is added to carry out the reflux and the little salt packed in the crude product is removed, and the product is collected through heat filtration.

其特征在于：①将2--3-氰基-4-羧甲基噻吩-5-羧酸四酯在适量氢氧化钠水醇溶液中回流5～6小时，水解过程保持pH值10以上；②然后再加入20-60％乙醇，随后直接加入2-2.5倍摩尔量氯化锶水溶液，析出结晶，过滤，晾干；③加水回流，除去粗品中包裹少量盐，热过滤，收集产品。

In this paper, we have investigated and discuss the appropriate conditions under which the developing reaction to responds to Phospho Vando Molybdic acid and basic dye malachite green in aqueous solution by conducting experiments, through which the best quantity about addition of reagents can be fixed.

研究了磷钒钼酸与碱性染料孔雀绿在水溶液中的显色反应，确定了最佳反应条件，并将这种方法应用于复混肥中磷含量的测定，试验结果表明，此方法的灵敏度高、重现性好、准确度高。

This paper demonstrated the impact on the environment today, an important factor is Education.

本文主要展示了当今影响环境的一个重要因素——教育。

Article 16 The power to interpret these Procedures shall remain with the Ministry of Agriculture and CAA.

第十六条本程序由农业部、国家认证认可监督管理委员会负责解释。