A method of methanol content determine using 721 spectrophotometry is introduced.
介绍了一种用721分光光度计法测定白酒中甲醇含量的方法。
The effect of methanol content in the raw material on the yield of TDC is investigated.
对反应原料中甲醇的含量对甲苯2,4二氨基甲酸甲酯收率的影响进行了计算。
Crude methanol in the methanol content of about 80 percent, most of the rest is water, methanol fine products in the purity of up to 99%.
粗甲醇中甲醇含量约80%,其余大部分是水,产品精甲醇的纯度可达99%以上。
Influence of methanol content in formaldehyde used as raw material for preparing low-formaldehyde (low molecular ratio) UF resin was studied.
研究了原料甲醛中甲醇含量对低醛化(低摩尔比)脲醛树脂性能的影响。
A prediction model of methanol content at the exit of methanol synthesis reactor was proposed through radial basis function networks and partial least square regression approach.
运用径向基函数网络结合偏最小二乘回归的方法建立了甲醇合成反应器出口甲醇含量的预测模型。
Results It is evident that the content of matrine in Sophora flavescens using chloroform as solvent is less than using methanol or acid methanol.
结果用氯仿做溶媒时苦参中苦参碱的含量明显低于用甲醇或酸性甲醇做溶媒时的含量。
Methanol extracts of two kinds of formicary were investigated for their free radical scavenging activities, total phenolic content, reduction power and antimicrobial activities.
对两种不同的蚂蚁窝进行甲醇提取,并对提取物进行了急性毒性、抗自由基,酚含量、还原能力和抗菌活性的检测。
The paper compares the Lurgi synthesis gas purification technology with that of Linde, in which the cycling solvent methanol has a high water content and consumes considerably.
针对林德公司工艺存在着溶剂甲醇在循环过程中水含量高和损失大的问题与鲁奇公司合成气净化工艺进行了比较。
The article has carried on the preliminary discussion to the target, content, method of the ERA of construction project, and introduced the ERA of some methanol project in brief.
对建设项目环境风险评价的对象、内容、方法进行了初步探讨,并对某甲醇项目的环境风险评价进行了简要介绍。
The results showed that it was a simple method with good reproducibility and high recovery rate in determining gossypol content in methanol phase from two-phase solvent extraction.
结果表明,该方法具有简便、重复性好、回收率高等优点,可用于双液相浸取棉仁的甲醇相中棉酚含量的测定。
A new method has been developed to determine chlorine and sulfur content in methanol and charcoal by using combustion oxidation coupled to ion chromatography.
提出采用燃烧氧化偶联离子色谱法测定甲醇、碳黑中的氯和硫的含量。
It can be seen that, in the respect of the methanol and multiple_alcohol content of wine, the wine in our country is able to be up to the standard set in the world.
从中可以看到国产正规品牌酒样的甲醇及杂醇油含量均能达到国家标准要求。
The author introduced the results of the determination of the methanol and multiple_alcohol content of 55 kinds of wine, and made a statistical analysis of their content distribution.
介绍了对55种酒样中甲醇及杂醇油含量测定的结果,并对其含量分布进行了统计分析。
Thus, the content of methanol in the gas could be calculated.
用色谱法分析溶液中的甲醇含量,从而计算出气体中的甲醇含量。
METHODS The content of phillyrin in forsythia was determinated by using Soxhlet extractor with methanol, separation and purification with the neutral aluminum oxide column and HPLC method.
方法采用甲醇索氏提取,中性氧化铝柱层析分离纯化、高效液相色谱法测定连翘中连翘苷含量。
At present, the choice of method to remove sulfide is the one of major content for the methanol plant.
脱硫方法的选择是目前甲醇项目脱硫技术的主要内容之一。
Properties of the PEMs, such as proton conductivity, methanol permeation, can be controlled by changing the content of PAMPS and cross-linking agent.
质子交换膜的各种性能,如质子传导率,甲醇渗透率等,可以通过PAMPS含量及交联剂的含量来进行控制。
Xcalibur analysis software of GC/MS was applied to search for toxic methanol and measure its content rapidly and accurately.
从血液样品中检索出引起中毒的成分甲醇 ,并应用GC/MS快速准确的定量测定了甲醇的含量。
The effects of the catalyst content, ratio of methanol to fumaric acid, reaction time and reaction temperature on the reaction were investigated.
讨论了催化剂用量、醇酸比、反应时间、反应温度等对合成富马酸二甲酯的影响。
The source of water contained in fine methanol was analyzed. The reason of high water content is that the backflow is not timely adjusted according to the change of production load.
分析了精甲醇中水的来源,找出造成馏出口水含量超标的原因:回流量不能及时地根据生产负荷的变化而作相应的调节。
Results the optimal solvent was anhydrous methanol, and the content of total saponins was 12.3% with the standard product R1.
结果无水甲醇是浸提三七中皂苷类化合物的较理想溶剂,以三七皂苷r 1为标准品测得该提取液中总皂苷含量为12.3%。
Effects of reaction conditions, including WHSV, reaction temperature, N_2 content and time on stream, were studied on side chain alkylation of toluene with methanol over basic zeolite catalysts.
研究了重量空速、反应温度、载气流速、反应时间等工艺条件对甲苯、甲醇在碱性沸石上侧链烷基化反应的影响。
Some new thermodynamic performances in the low content range of methanol and ethanol of the methanol-ethanol-water ternary system were also revealed by the computation.
根据文中的计算还发现,甲醇-乙醇-水三元物系在甲醇和乙醇的低浓度区存在某些新的热力学特性。
Furthermore, the electric field can also change the water content and the methanol permeability of the blend membranes.
电场作用还能改变膜的含水率及阻醇性能。
The invention relates to a device and a process for the separation and purification of methanol synthetic oil containing high-content aromatic hydrocarbon.
本发明涉及含高芳烃的甲醇合成油分离提纯装置及工艺。
The invention relates to a device and a process for the separation and purification of methanol synthetic oil containing high-content aromatic hydrocarbon.
本发明涉及含高芳烃的甲醇合成油分离提纯装置及工艺。
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