Gold can be highly dispersed on metal oxides by coprecipitation and deposition-precipitation methods.
用共沉淀法和沉积沉淀法可以制备高度分散的金负载氧化物催化剂。
It is simple in technology, high in purity of recovered product and good in economical results as compared with electrolytic and precipitation methods.
与电解法和沉淀法相比,工艺简单、回收产品纯度高、经济效益好。
This article analyzed the basic principle of magnesium separation applicable to some kinds of precipitation methods and illustrated their practical application.
分析了适用于分离镁的各类沉淀法的基本原理及举例说明了其实际应用的方面。
Concentration of the virus particles by precipitation Because viruses are proteinaceous, they can be precipitated by methods that will precipitate proteins.
通过沉淀将病毒物质浓缩。由于病毒是蛋白质性质的,它们能通过蛋白质沉淀法沉淀。
The advantage and disadvantage of the five recycling methods, direct heating, direct aqueous vapor, indirect aqueous vapor, reduced pressure distillation, precipitation method, is discussed.
探讨了直接加热法、直接水蒸汽法、间接水蒸汽法、减压蒸馏、酒精沉淀等五种回收方法的优缺点。
Methods: Sulfate ion precipitation method was used.
方法:采用硫酸根离子沉淀法。
The fundamental concept and principle of the precipitation separation technology are introduced, and some conventional methods, together with the basic processes of common examples, are described.
介绍了沉淀分离技术的基本概念、基本原理、应用以及常用的沉淀分离方法,提供了一些常见的应用实例的基本流程。
METHODS Combined water extract and alcohol precipitation, herbs was administrated after sterilization.
方法:采用中药水提酒精沉淀消毒后腹腔灌洗。
Objective to prepare a kit for detecting apoprotein (apo) A1 and B. Methods Dextran sulfate precipitation, ultracentrifugation, chromatography, and so on.
目的研制载脂蛋白a1和B检测试剂。方法采用硫酸葡聚糖沉淀、超速离心、层析等方法。
Major treatment methods for arsenic include sulfide precipitation, or complexation with polyvalent heavy metals.
砷的主要处理方法有硫化物沉淀法,或与多价重金属络合。
Integrating hydrology data and weather data, the impacts of temperature and precipitation on elements of water resource were studied using mathematics analysis methods.
结合水文数据与气象数据,运用数学分析的方法研究了气温和降水对水文水资源要素的影响。
METHODS: Using naproxen as internal standard, mycophenolic acid in plasma samples was determined by HPLC with protein precipitation.
方法:以萘普生为内标,血浆用甲醇蛋白沉淀后直接进样。
Method: the different methods were compared and the extraction was treated by means of color reaction, precipitation reaction and antibacterial experiments.
方法:比较各种提取方法,通过显色反应、沉淀反应和抑菌实验作用于该提取物。
Tendency of precipitation and cutout days is analyzed and cutout length is forecast by using such methods as stochastic mathematics and so on .
应用随机数学等方法,建立预测模型,分析黄河下游来水、用水、降水及断流历时发展趋势,并进行断流长度等预测。
The interpolation model of temperature and precipitation of Viet Nam is built by using different inserting methods according to the elements that reflect the climate in different dimension scales.
根据反映不同空间尺度气候要素变化规律,充分考虑辐射、地形等气候形成因子的影响,采用不同内插方法,建立了越南气温和降水量插补模型。
Synoptic and statistic methods are employed to verify the precipitation forecasts for1993 from LAFS.
应用天气学和统计学方法对1993年LAFS数值降水预报产品进行检验。
Based on the data of Meiyu precipitation about 50 weather stations from 1960 to 2002, temporal and spatial distribution characteristics are analyzed with EOF and REOF methods.
基于江淮梅雨区域50个气象台站1960 - 2002年的梅雨量资料,利用EOF、RE OF展开方法,分析了江淮梅雨降水的空间分布及时间演变特征。
The conventional methods for treating Cu-containing wastewater include ion exchange, bath side electrolysis and hydroxide precipitation.
含铜废水的处理常用的有离子交换法、槽边电解法和氢氧化物沉淀法。
Different metals are separated from the electroplating sludge by roasting and copper, nickel and chromium were recovered with suitable methods such as removing iron by sodium jarosite precipitation.
该工艺采用焙烧法将污泥中的金属组分同类分离,并结合黄钠铁矾沉淀法去除杂质铁等工艺对铜、镍、铬进行了回收利用。
In this paper, preparation processes of amorphous silica using Henan Zr-containing silica residue as raw materials with chemical precipitation and direct neutralization methods were researched.
本论文以河南锆硅渣为原料,研究了分别采用化学沉淀法和直接中和法制备白炭黑的技术和工艺。
The results showed that the methods of isoelectric precipitation, gel-filtration chromatography and anion-exchange chromatography were suitable for purifying the major allergens in buffalo milk.
实验结果表明,等电点沉淀、凝胶柱层析法和阴离子交换法适合于分离水牛乳中主要过敏原成分。
Methods a combination of euglobulin precipitation, ion-exchange chromatography, (NH4) 2so4 precipitation and affinity chromatography was used in the process of purification.
方法采用优球蛋白沉淀、离子交换色谱、(NH4)2so4沉淀和亲和色谱法进行纯化。
Chemical precipitation of phosphorus removal methods still need to be used.
磷的去除尚需化学沉淀的方法得以实现。
In this paper, the method of purification and the technological process about mine water are discussed. The main methods of handling are coagulation, precipitation, filtering and disinfection.
本文论述了矿坑水的净化处理方法与工艺流程,主要处理方法有混凝、沉淀、过滤及消毒。
This paper describes the precipitation tube transmission line in the application of basic construction methods.
本文叙述了管井降水法在输电线路基础施工中的应用方法。
Liquid precipitation method is one of the most popular methods of synthesis nanometer powders.
液相沉淀法是一种合成纳米粉体最为普遍的方法。
The main methods for calculating designed flood are probable maximum precipitation and hydrologic frequency analysis.
设计洪水计算方法主要是可能最大降雨和水文频率法。
Find season precipitation forecasts of 1993 were made with two new research results in the last two years except the routine methods many years ago.
1993年的汛期降水预报除了多年来的一套常规方法外,还利用了近两年的两个新研究结果。
Find season precipitation forecasts of 1993 were made with two new research results in the last two years except the routine methods many years ago.
1993年的汛期降水预报除了多年来的一套常规方法外,还利用了近两年的两个新研究结果。
应用推荐