查询词典 chromatograph

First,adding the calcium carbide to react with the water in sodium pyrosulphate to get acetylene gas,then the acetylene content is determined by gas chromatograph,therefore the water content in the sample can be calculated.

先用电石将水分转化为乙炔气，然后用气相色谱仪检测乙炔的含量，从而得出样品中水分含量。

The investigation of reaction kineties of tetralin hydrocraking on modified Molyblenum-Nickel catalysts with zeolite Y were conducted in the improved China-made continuous micro reactoe WF-8900 connected with gas chromatograph on-line.

在活性趋于稳定的以改性Y沸石为担体的钼镍催化剂上，利用经改造的国产WF—8900型连续流动微反-色谱装置，进行了四氢萘加氢裂化反应动力学方面的研究。

According to stipulations under each type, precisely weigh reference substances and test samples to formulate solutions, and then precisely size a certain amount to inject into instrument and record chromatograph chart.

按各品种项下的规定，精密称取对照品和供试品，配制成溶液，分别精密量取一定量，注入仪器，记录色谱图。

The main intermediates were detected during decomposition,such as acetic acid,oxalic acid,malonic acid,phenol,3-hydroxyhypnone,naphthalene,benzene sulfonic acid,phthalic acid,β-naphthalene etc . by ultraviolet-visiblespectroscopy,ion chromatographand gas chromatograph coupled with mass spectrophotometertechniques.The possible degradation pathway of Acid Orange Ⅱ was also speculated,that was,hydroxyl radical reacted with the azo linkage-bearing carbon of naphthol-ring,and the C—N cleaved,the azo-dye decolored and mineralized.

运用紫外光谱、离子色谱、色谱-质谱联用等方法，测定出酸性橙Ⅱ的主要降解产物有乙酸、乙二酸、丙二酸、苯酚、3-羟基苯乙酮、萘、苯磺酸、邻苯二甲酸、β-萘酚等，并依此推测酸性橙Ⅱ的降解机理，即羟基自由基攻击酸性橙Ⅱ分子上与萘环相连的C—N键，导致C—N键的断裂，进而染料脱色矿化。

Through taken the measurements of pH, TOC, UV-Vis spectra and high-performance liquid chromatograph in the degrading process of solution ,it was found that the COD of dye solution increased, pH continuing declined and TOC reduced gradually. The UV-Vis spectra and high-performance shown that though dye molecules had been destroyed, Strong Chromophore Azo Double Bond of dye was certainly under attack, the big conjugated system was vandalized and dye molecules were decolorized degradation, but they were not completely changed into carbon dioxide and other inorganic matter by mineralization, it appeared accumulation of aromatic ring and double benzene nucleus, so it is thus evident that complete destruction of aromatic ring is more difficult than the double benzene.

通过测定直接大红染料脱色过程中的溶液pH、TOC、紫外可见光谱图和高效液相色谱图可知，在脱色处理时间(6h)范围内，染料溶液的COD值增大， pH值持续下降，TOC值逐渐降低，结合紫外可见光谱图和高效液相色谱图，说明染料分子虽然已经遭到破坏，染料分子内强生色基团偶氮双键确实遭到攻击，大的共轭体系被破坏，染料分子被脱色，却没有完全被彻底矿化成二氧化碳等无机物，出现了芳环和萘环结构的累积现象，可见完全破坏芳环比破坏偶氮双键发色团更困难。

Oral antivirus decoction——one kind of Chinese herb decoction was concentrated by process of freeze concentration in this paper,and the useful component of concentrated solution was measured by high performance of liquid chromatograph.

应用基于层状结冰的冷冻浓缩工艺，对中药抗病毒口服液的稀液进行了浓缩实验，并用高效液相色谱对实验结果进行分析。

The principle and specific methods of determination of saccharin sodium, cyclamate and citric acid in wine by high performance chromatograph are introduced.

介绍了用高效液相色谱法测定葡萄酒中糖精钠、甜蜜素和柠檬酸的原理和具体方法。

Xinjiang Beijiang Red Table Grape Industry Development Company uses chromatograph equipment to distinguish varies of colors of fruits and thermal imagery device to grade fruit during process of packing.

项目简介：该项目主要内容：在北疆红提公司各种植基地建设利用色谱设备分色，利用热成像原理分级的国际标准化包装生产线。

Accordingly, the causations of the errors occurred in liquor gas chromatograph analysis were Investigated and the relative measures to avoid such errors were put forward.

分析误差产生的各种原因，提出合理减少误差的对策，为提供更加准确的检测数据提供保障。

Then, the suspected sources were identified detailed by Gas Chromatograph-Mass Spectrum.

事实证明，这种方法有利于应急状态下溢油源的快速鉴别。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。