乙二醛

The saturated concentration of glyoxal dihydrazone in acetonitrile solution at pH 1.75 and 20 ℃ was 20.2 mg/L.

在20 ℃、pH 1.75的乙腈溶液中，乙二醛二腙的溶解度为20.2 mg/L。

The results showed that,working in coordination with-CONH_(2,)-COO~and-OH,the absorbability and retentivity of hydrolysates of PAM to water increased.

与乙二醛交联的PAM-4相比，戊二醛交联的PAM-4因可以有更大的网络伸展空间，水和肥的保持、吸收能力更强。

PVA;玉米淀粉糖糖浆;超细纤维;乙二醛;戊二醛;交联;静电高压 Corn industry has become "facing sun" and "gold" industry because of its highly additory values, development potential being huge.

玉米产业因高附加值而成为&朝阳&产业和&黄金&产业，发展潜力十分巨大。

The emphasis was on chemical properties,application,main production methods,market,and prospects of main deriva- tives of acetaldehyde such as ethyl acetate,pentaerythritol,glyoxal,peracetic acid, crotonaldehyde and pyridine.

介绍了国内外乙醛及其主要衍生物的生产技术发展及其市场供需状况，尤其对乙醛主要衍生物乙酸乙酯、季戊四醇、乙二醛、乙醛酸、丁烯醛、吡啶的化学性质与用途、主要生产方法、市场供需状况及开发前景作详细介绍和分析。

Production technology of synthesis of allantoin are reviewed, including glyoxal oxidation, electrochemical synthesis, calcium glyoxylate synthesis, dichloroacetic acid synthesis, ace-tochloral method, and oxidative decarboxylation.

评述了乙二醛氧化法、化学法、醛酸钙法、素三氯乙醛合成法、酸二氯乙酸法和尿酸氧化脱羧法等合成尿囊素的各种工艺。

The determination of glyoxal and glyoxalic acid in aldehyde solution was performed by high performance liquid chromatography.

利用醛基与2，4-二硝基苯肼反应得到的腙产物对紫外-可见光有吸收的特性，采用高效液相色谱法测定乙醛溶液中乙二醛和乙醛酸的含量。

Glyoxylic acid can be obtained without pH regulation during the reaction, and glyoxylic acid can not be oxidize...

研究结果表明，乙二醛的催化氧化副产物甲酸对乙二醛和乙醛酸的分析没有干扰。

A strain producing 2-oxoaldehyde reductase was isolated from LB culture medium containing methylglyoxal. By analyzing its physiological and biochemical characters, and 16S rDNA sequence, it was identified as S. maltophilia and named as Stenotrophomonas inaltophilia YL.

用含甲基乙二醛的LB培养基平板筛选到1株能代谢甲基乙二醛的细菌，通过对克隆到的16S rDNA基因序列比对及生理生化实验，将其鉴定为嗜麦芽寡养单胞菌，命名为Stenotrophomonas maltophilia YL。

Raw enzyme was extracted after the bacteria were ultrasonically broken, and its 2-oxoalde-hyde reductase activity was detected by HPLC and UV absorbency spectrum in the presence of NADH and methylglyoxal as a substrate.

破碎该菌细胞后提取粗酶，以甲基乙二醛作反应底物，在还原性辅酶Ⅰ存在条件下，紫外光谱和HPLC的分析表明，该菌能代谢甲基乙二醛；并对其产酶条件进行了研究。

An experimental study on improving the humidifying penetration ability of the water glass grout when mixed with surfactant A has been performed.

以乙二醛作为水玻璃溶液的胶凝剂国内研究应用发展较慢，笔者从日后发展的角度出发，重点研究了乙二醛—水玻璃化学灌浆材料。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。