乙酰基

Coil O85 antigen contained 8 varieties of genes, including UDP-Nacetylglucosamine-2-epimerase gene (f1). UDP-galactopyranose mutase gene, glycosyl transferase genes (f3, f5, f6, f8), O-antigen transferase gene and O-antigen polymerase gene, in which two genes, wzx and wzy and 4 pairs of primers were identified to be specific to E.

发现8个开放阅读框架并确定功能，分别为：UDP-N-乙酰葡萄糖－2-异构酶基因，吡喃型UDP-半乳糖变位酶基因，糖基转移酶基因（orf3、orf5、orf6和orf8），O-抗原转运酶基因和O-抗原聚合酶基因。

The accuracy of phenacetin and paracetamol was 87.1%-101.5% and 89.5%-107.3%, the precision was 0.85%-7.83% and 2.53%-8.74%, respectively. The extraction recovery ranged from 58.25% to 69.85%, and matrix effect was 99.0% to 103.6%.

非那西丁和对乙酰氨基酚的准确度分别为87.1%~101.5%和89.5%~107.3%，精密度分别为0.85%~7.83%和2.53%~8.74%，提取回收率为53.0%~76.0%，基质效应为92.0%~106.3%，均符合生物样本分析方法的有关要求。

The hydrogen bonding of 1:1 complexes formed between acetamide and three kinds of isomers of picolines have been completely investigated using B3LYP method at various basis set levels from 6-31G to 6-31+G and 6-31++G. The results show that the interaction energies of hydrogen bond complexes between acetamide and picoline isomers have great effects on the values of h_.

2采用密度泛函理论等方法研究了乙酰胺分子分别与甲基吡啶三种异构体分子以1：1的比例形成的氢键络合物，从B3LYP/6-31G到6-31++G基组水平进行了优化，利用结合能数据讨论了焓对作用系数的差异。

The synthesis of nalbuphine hydrochloride from thebaine as starting material was through following processes:oxidation,high-pressure hydrogenation,acetylation,removing methyl of 3-methoxy,hydrolysis,condensation,reduction and finial salification.

以蒂巴因为起始原料，经氧化、高压氢化、乙酰化、氰化、脱3-位甲氧基的甲基、水解、缩合、还原、成盐，合成了盐酸纳布啡，总收率达18。

Diagnostic tests include the arterial blood gas, and nitroprusside test for acetoacetate (used qualitatively, not quantitatively, because it always underestimate s the severity of the acidsis).

诊断实验包括动脉血气分析、以及测定乙酰乙酸的硝基实验（因常用于估计酸中毒的严重程度，只作为定性实验而不是定量的）。

Diagnostic tests include the arterial blood gas, and nitroprusside test for acetoacetate (used qualitatively, not quantitatively, because it always underestimates the severity of the acidsis).

诊断实验包括动脉血气分析、以及测定乙酰乙酸的硝基实验（因常用于估计酸中毒的严重程度，只作为定性实验而不是定量的）。

Diagnostic test s include the arterial blood gas, and nitroprusside test for acetoacetate (used qualitatively, not quantitatively, because it always underestimates the severity of the acidsis).

诊断实验包括动脉血气分析、以及测定乙酰乙酸的硝基实验（因常用于估计酸中毒的严重程度，只作为定性实验而不是定量的）。

Their structures were detailedly identified on the basis of chemical methods (sugar composition analysis, glycosyl residue linkage analysis, partial acid hydrolysis, periodate oxidation, Smith degradation, acetolysis, Congo Red experiment, etc.), spectral technologies 1D, 2D NMR, ESI-MS, IR, etc.

通过各种化学方法（糖组成分析，糖残基连接方式分析，部分酸水解，高碘酸氧化，Smith降解，乙酰解，刚果红实验等）、光谱方法（1D、2DNMR，ESI-MS，GC-MS，IR等）和物理化学方法（分子量分析，粘度分析，旋光度分析等）对各纯化多糖的化学结构及糖链构象进行了鉴定。

The condensation of 3 carbethoxy isoquinol 4 one with carbamidine, amidine, carbamide and sulfocarbamide gave isoquinolo pyrimidine derivatives, respectively and isoquinolo quinoline derivatives were synthesized by the reaction of o aminobenzaldehyde or o aminopiperonal with isoquinol 4 one.

报道了利用 3 乙氧甲酰基异喹啉 4 酮分别与胍、脒、脲及硫脲类化合物缩合反应合成异喹啉并嘧啶衍生物，邻氨基苯甲醛、邻氨基胡椒醛分别与异喹啉 4 酮反应合成异喹啉并喹啉化合物。6个新化合物的结构通过元素分析、红外光谱、核磁共振氢谱和质谱予以证

Based on broad information collection, author compared and studied on the old synthesis process, and proposed the better process that started from benzyl chloride, then according to the sequence of " synthesis of benzylamine, synthesis of N-benzyl-N--acetamine, synthesis of 2-chloro-5-methylpridine ,2-chloro-5-trichloromethylpyridine,2-chloro-5-trifluropyridine " five steps to get the final product, CTFP.

本文在查阅大量文献资料和对2-氯-5-三氟甲基吡啶合成路线进行分析比较的基础上，提出了较佳合成路线，即以氯化苄为原料，合成的反应步骤为&苄胺&合成、&N-苄基-N--乙酰胺&合成、&2-氯-5-甲基吡啶&合成、&2-氯-5-三氯甲基吡啶&合成、&2-氯-5-三氟甲基吡啶&合成五步。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。