1) diacetyl
[,daiə'si:til]
丁二酮
1.
The fast determination of diacetyl:the flavor component in pickle by SPME-GC;
SPME-GC法快速检测泡菜风味物质丁二酮的研究
2.
Selection and Fermentation of Enterbacter Aerogenes Mutant for Diacetyl Production;
丁二酮产生菌的选育及代谢控制发酵研究
3.
Objective: To screen a stable,high diacetyl-producing strain and analyse its fermentation kinetics.
目的:筛选出稳定的高产丁二酮突变菌株,并对其进行发酵动力学分析。
2) biacetyl
[bai'æsitil]
丁二酮
1.
Supersonic Jet-cooled Laser-induced Fluorescence(LIF) Spectrum of Biacetyl;
超声射流冷却丁二酮的激光诱导荧光激发谱
2.
Studies on Solubilization Site of the Triplet Energy Acceptor Biacetyl in Normal Micelles by Using Quenched RTP Method;
胶束介质中丁二酮增溶位点的室温燐光碎灭法研究
3.
In this paper,various syntheses of 2,3-dimethylpyrazine are reviewed,which raw materials includes from biacetyl and ethylene diamine,or from 2,3-butylene-glycol and ethylene diamine etc.
本文论述了以丁二酮与乙二胺和丁二醇与乙二胺等不同物质为原料的多种合成2,3-二甲基吡嗪方法,并对其在医药、农药、香料和分析化学等方面的应用做了概述。
3) butanedione
丁二酮
1.
The synthesis of butanedione as feed scenting agent;
饲料香味剂丁二酮的合成
2.
The major flavor substances Lactic acid bacteria produced include the buttermilk aroma butanedione, the yoghurt flavor acetaldehyde and the amino acid.
乳酸菌的主要风味代谢物质包括丁二酮,乙醛以及各种氨基酸。
3.
Four oxidants,including ironic chloride,ironic sulfate,cupric chloride and cupric sulfate,were compared to be used to oxidize acetoin to prepare butanedione.
丁二酮具有甜的、奶油、黄油香气,是一种重要的香料化合物,广泛用于各种香精配方中。
4) dimethylglyoxime
[,dai,meθil,ɡli'ɔksaim]
丁二酮肟
1.
Determination of Palladium in Ore after Separation and Preconcentration with PVC-Dimethylglyoxime Double Membranes Resin by Atomic Absorption Spectrometry;
PVC-丁二酮肟复膜树脂分离富集原子吸收法测定地质样品中的钯
2.
Study on the measurement of the trace amount of Nickel in copper alloy -Separation of cuprous iodide-Dimethylglyoxime spectrophotometry;
铜合金中痕量镍的测定——碘化亚铜分离一丁二酮肟分光光度法
3.
Study on the catalytic stripping voltammetry of trace cobalt at the dimethylglyoxime-modified carbon paste electrode via plating mercury in situ;
丁二酮肟修饰碳糊电极同位镀汞催化溶出伏安法测定痕量钴的研究
5) diacetyldioxime
[daiæsitildai'ɔksaim]
丁二酮肟
1.
Anodic Stripping Voltammetric Determination of Bismuth with Diacetyldioxime-modified Carbon Paste Electrode;
丁二酮肟修饰碳糊电极阳极溶出伏安法测定痕量铋
2.
Determination of Trace Pb(Ⅱ)with Glassy Carbon Electrode Modified with Diacetyldioxime by Differential Pulse Stripping Voltammetry;
丁二酮肟修饰玻碳电极差分脉冲溶出伏安法测定痕量铅
3.
Diacetyldioxime Rebound Qualifying Promote Carbon Electrode Measurement Trace Cadmium by Differential PulseStripping Voltammetry;
丁二酮肟修饰玻碳电极差分脉冲溶出伏安法测量痕量镉
6) dimethyl glyoxime
丁二酮肟
1.
Study on anodic adsorptive voltammetry of palladium-dimethyl glyoxime complex at a carbon paste electrode;
钯(Ⅱ)-丁二酮肟络合物在碳糊电极上的阳极吸附伏安法研究
2.
Preparing of Dimethyl Glyoxime Modified Carbon paste Electrode and Determination of Copper(Ⅱ);
丁二酮肟修饰碳糊电极的制备及对Cu(Ⅱ)的测定
补充资料:丁二酮
最简单的饱和二元酮,分子式CH3COCOCH3。在自然界,丁二酮广泛存在于多种植物的香精油中,如鸢尾油、当归油、月桂油等。它是黄油和其他一些天然产物香味的主要成分。
丁二酮为黄色液体;蒸气颜色类似氯气;具有醌的气味,经稀释则有黄油香味;熔点-2.4℃,沸点88℃,相对密度0.9808(18.5/4℃)。它可溶于约 4倍的水中,能与醇、醚混溶。丁二酮与磷酸可形成混合晶体,利用此性质能把丁二酮提纯,因该晶体遇水则分解成原来的组分。只有纯的丁二酮才稳定。含有少量杂质时,即使在封管中暗处存放,也会聚合(见聚合反应),使液体粘度增大。在碱作用下,丁二酮聚合为二聚体。
工业上生产丁二酮,是用乙烯基乙炔或甲基乙烯基酮经水合再氧化的方法。实验室中可用二氧化硒氧化丁酮制取。丁二酮在食品工业中用作糖果、饼干、人造黄油等食品的增香剂,也可用作明胶的硬化剂。丁二酮与羟胺缩合生成的丁二酮二肟是分析镍等金属的特征性试剂。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条