讨论了合成反应的条件和质谱裂解途径。
We also analysed the conditions of synthetic reaction and fragmentation method of the compounds in MS.
探讨该化合物的质谱特征离子与裂解途径，提供莽草酸的质谱学基础。
The characteristic ions and fragmentation patterns of shikimic acid were discussed by EIMS, ESIMS and MS/MS.
探讨该化合物的质谱特征离子与裂解途径，提供莽草酸的质谱学基础。
The mass spectra were interpreted mainly by comparing the fragments of six compounds, and their fragmentation patterns were proposed.
探讨该化合物的质谱特征离子与裂解途径，提供莽草酸的质谱学基础。
The characteristic ions and fragmentation patterns of shikimic acid were discussed by EIMS, ESIMS and MS/MS. This paper summarizes the basic of mass spectroscopy of shikimic acid.
采用电喷雾离子阱(ESI - MS)质谱技术对水飞蓟宾的结构和裂解途径进行研究。
The structure and fragmentation pathway of silybin were elucidated by electron spray ionization mass spectrometry (ESI-MS).
结果表明：胆甾醇酯的EI质谱裂解途径主要由甾环决定，各化合物谱图之间几乎无差别；
The result shows that EI fragmentation process of cholesterol esters is determined mostly by the steroid nucleus, and there is almost no difference among the mass spectra of various compounds.
利用台式飞行时间质谱的中分辨本领，研究了牡荆素的电子轰击质谱的裂解规律，对裂解途径进行了完全的指认。
Using moderate resolution capabilities of a desk time-of-flight (TOF) instrument, the fragmentation regularity from electron impact mass spectra of vitexin was studied.
以萘为底物生长时，ND6菌株的细胞提取液中既存在催化邻位裂解途径的儿茶酚1，2-双加氧酶活性，也存在催化间位裂解途径的儿茶酚2，3-双加氧酶活性。
When naphthalene was used as a substrate for growth of strain ND6, catechol 1,2-dioxygenase and catechol 2,3-dioxygenase activities were both detected in their crude extract.
指出以生产石油沥青和工业萘为主，副产混合甲基萘等馏分，是综合利用裂解焦油的重要途径之一。
It is pointed out that to produce petro - asphalt and industrial naphthalene as main products and mixed methyl naphthalene fractions as by -product is one of important ways to utilize pyrolysis tar.
利用催化裂解方法回收液体燃料或化学品被认为是一种前景广阔的有效途径。
Among various recycling methods, the chemical method, which converts waste plastics to useful hydrocarbons, has been recognized as a promising approach.
生物质催化裂解是生物质热化学转化的一种重要途径。
Catalytic pyrolysis of biomass is one of the important methods of biomass thermal chemical conversion.
脱氢产物的第一次加氧反应转向脱氢产物的裂解反应是高温反应的主要途径。
The decomposition reaction of the produced species by H-atom abstraction is the main path of DME consumption at high temperature.
热等离子体裂解煤制乙炔过程为煤的直接化工利用提供了一条有前景的、清洁转化途径。
Coal pyrolysis to acetylene in thermal plasma provides a direct route to make chemicals from coal resources.
吲哚胺2，3双加氧酶（IDO）是一种免疫调节酶，可催化色氨酸分子中吲哚环氧化裂解，从而沿犬尿酸途径分解代谢的限速酶。
The immunoregulatory enzyme indoleamine 2,3-dioxygenase (IDO) catalyzes the oxidative cleavage of the indole ring of tryptophan.
利用蒸汽裂解和炼油工艺的碳四和碳五馏分生产丙烯是增产丙烯的一条重要途径。
Technologies for propylene production by using C4 and C5 fractions as feedstock coming from steam cracker and refineries are reviewed.
另外一导致二聚体裂解的可能途径：色氨酸残基激发三重态与二聚体间的电子转移光敏化二聚体裂解。
In addition, the excited triplet state of Trp can also transfer an electron to the dimer and make it splitted.
测定了降解途径中相关酶的活性，表明对氯苯胺经过苯胺双加氧酶初始氧化和羟基化后，芳环的裂解是由邻苯二酚2 ，3双加氧酶催化。
Enzymatic analysis show that initial reactions ofp-chloroaniline degradation by Diaphorobacter sp. PCA039 are catalyzed by aniline dioxygenase and chlorocatechol 2,3-dioxygenase.
测定了降解途径中相关酶的活性，表明对氯苯胺经过苯胺双加氧酶初始氧化和羟基化后，芳环的裂解是由邻苯二酚2 ，3双加氧酶催化。
Enzymatic analysis show that initial reactions ofp-chloroaniline degradation by Diaphorobacter sp. PCA039 are catalyzed by aniline dioxygenase and chlorocatechol 2,3-dioxygenase.
应用推荐