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- Keywords urea diacetyl monoxime analysis inquiry; 尿素;二乙酰单肟;分析;探讨;
- Keywords Diacetyl monoxime;Palladium chloride;Triphenyl phosphine;Tetramethylpyrazine;Kinetics; 二乙酰一肟;钯/三苯基膦;四甲基吡嗪;动力学;
- diacetyl monoxime 二乙酰一肟
- [Methods]QC 8000 continuous flow injector was used to determine urea according to the principle that urea combined with diacetyl monoxime and aminothiourea can produce red compound and has maximal absorption peak at he wavelength of 530nm. 方法采用QC 8000连续流动注射仪,根据尿素在强酸性条件下与二乙酰一肟生成红色化合物,在530 nm波长处有最大吸收峰的原理进行测定。
- Diacetyl is an important matter affecting the flavor of beer . 双乙酰是影响啤酒风味的重要物质。
- ANESTHETICS: Benzocaine, pramoxine, and antipyrine relieve pain and pruritus. 麻醉剂:苯佐卡因, pramoxine ,和安减轻疼痛和瘙痒。
- Diacetyl is one of the important indices in beer quality management. 双乙酰是啤酒品质管理的重要指标之一。
- Diacetyl is also an important effect substance on the flavour of beer. 双乙酰也是影响啤酒风味的重要原因之一。
- Both the number of input nodes and hidden nodes was 5.Refrence solution was mixure of aminopyrine and antipyrine. 输入节点数和隐含节点数均为5,测定参比液为氨基比林和安替比林的混合液。
- The contents of caffeine, antipyrine and sodium salicylate in Satongfeng Injection were measured by HPLC. 采用HPLC法测定撒痛风注射液中咖啡因、安替比林和水杨酸钠的含量。
- The hydrosulfite in beer would cause deviation of the determination of diacetyl content in beer by EBC method. 使用邻苯二胺(EBC法)测定啤酒中双乙酰含量时,啤酒中存在的亚硫酸氢盐会影响测定结果的准确性。
- Methods: The soleus and extensor digitorum longus(EDL) muscle strips were perfused in vi(tro) and treated by 2,3-Butanedione monoxime(BDM). 方法:采用肌球蛋白ATP酶抑制剂BDM(Butanedione monoxime)灌流,观测其对离体骨骼肌肌条等长收缩功能的影响。
- The contents of acetaminophen and antipyrine in acetaminophen compound injectate may be determined by the P-matrix method. 本文采用P-矩阵法测定复方扑热息痛注射液中扑热息痛和安替比林的含量。
- AIM To study the effect of pretreatment with glycyrrhizin on the hepatocyte proliferation and disposition of antipyrine and acetaminophen in mice. 目的研究甘草酸是否诱导小鼠肝细胞增殖及其对安替比林和醋氨酚代谢的影响。
- We study the affection for the EBC method determination of diacetyl in beer of all kinds of coefficiant of variation and obtain valuable results. 研究各种操作条件对EBC分析法测定啤酒中双乙酰的影响,得到了较有价值的结果。
- The content of the phenols in the FCC gasoline is determined by the 4-amino antipyrine direct photometric analysis method. 采用4-氨基安替比啉直接光度法测定了化裂化汽油中的酚类化合物的质量分数。
- Diacetyl(DA) is one of the most common off-flavors in beer fermentation, affects the quality of beer. 双乙酰(diacetyl)是啤酒发酵中的不良风味物质,产生令人不愉快的反应,可以缩短啤酒熟化周期,提高生产效率,对啤酒工业来说极有经济价值。
- Indomethacin is the pregnant woman taboo antipyrin, the aspirin is not suitable uses. 消炎痛是孕妇禁忌退热药,阿斯匹林也不宜使用。
- Ethyl nitrite and 2-butanone are condensed to give diacetyl monooxime,which canbe hydrolysed to form diacetyl. 本文用亚硝酸乙酯与2-丁酮缩合制备双乙酰-肟。
- The acid phosphatase (ACP) activity of macrophages from murine abdominal cavity was measured with the method of 4-amino antipyrine. 采用4氨基安替比林法检测小鼠腹腔巨噬细胞酸性磷酸酶(ACP)活性。