查询词典 hydroxy-acetophenone

Results showed that the extract ratioof the product was 0.09 %, and the relative contentsin the product were: juglone (5-hydroxy-l,4-naphthaoquinone) 96.42%, 1,4-Naphthalenedione0.70%; 7-Methoxy-1-tetralone 2.88%.

采用傅立叶红外FT-IR、气-质联用技术GC-MS及核磁共振氢谱~1H-NMR等分析产品的化学组成、化学结构及产品中胡桃醌的相对含量。

A method combining HPLC, a post-column derivation device and a fluorescent detector was used to determine residues of ten carbamate pesticides （aldicarb sulfoxide, aldicarb sulfone, oxamyl, methomyl, 3-hydroxy carbofuran, aldicarb, propaxur, carbofuran, carbaryl and methiocarb） in 68 vegetable and 32 soil samples under four different cultivation systems （traditional kailyard, open field vegetable base, green house and paddy） were collected from a certain city in South Jiangsu.

本研究采用高效液相色谱-柱后衍生-荧光检测法分析了苏南某市4种不同种植方式下（传统菜地、露天蔬菜基地、大棚蔬菜基地和水稻田）68个蔬菜样品和32个土壤样品中10种N-甲基氨基甲酸酯类农药（涕灭威、涕灭威砜、涕灭威亚砜、杀线威、灭多威、残杀威、克百威、3-羟基克百威、甲萘威和灭虫威）的残留量，结果表明在蔬菜中检出的氨基甲酸酯农药残留水平多处于0.2～23μgkg^-1，土壤中为0.1～10μgkg^-1；土壤中3-羟基克百威和灭虫威全部检出，其最高检测浓度分别为10μgkg^-1和1.64μgkg^-1，其他农药仅有少数检出。

Hydroxy and α-keto amino acid analogs of diet in

中的α-羟基和α-酮基氨基酸同型物。

A high ordered ladderlike polyhydrosiloxane was successfully synthesized by the strong H-bonding template of N〓, N〓-bis (1-hydroxy-2-methylpropan-2-yl) terephthalamide.

通过强的酰胺氢键模板作用首次合成了高规整性、可溶的反应性有机桥基N，N-二（2-羟基-2-甲基丙基）对苯二甲酰胺聚氢基硅氧烷高分子。

Chapter 5: The simultaneous determination of 20-hydroxy ecdysone, 3, 7-dimethoxy-quercetin, acteoside and rutin in the mixture of leaf and stem, and the flower of Lamium maculatum has been investigated by capillary zone electrophoresis for the first time.

所建立的毛细管区带电泳新方法简单、快速，可有效地分析短腺小米草的茎及花中的三种活性成分，该方法不仅可以用于分析短腺小米草植物的这些活性成分，而且对其他小米草属植物中这些活性成分的初期研究也具有重要的参考价值。

A series of 3 - aryl - 3 -( 5,5 - dimethyl - 3 - hydroxy - 2 - cyclohexene - 1 - one - 2 - yl) propanoic ester s were synthesized by reaction between aromatic aldehydes ,5,5- dimethyl -1,3-cyclohexanedione and isopropylidene malonate catalyzed by KF - Al2O3 in alcohols.

在KF-Al_2O_3催化下，将芳香醛3，5-二甲基-1，3-环己二酮及丙二酸亚异丙酯在醇中反应，一锅式合成了一系列的3-芳基-3-(5，5-二甲基-3-羟基-2-环己烯-1-酮-2-基)丙酸酯。

Synthesis of organic sulfuric compounds in aqueous media is carried out by: using thio-olefin compounds with carbonyl compounds, acetal/keltone, hydrazone, oxime, osazone and enamine to synthesize mercaptal/keltone compounds in aqueous media; using thio-olefin compounds with alpha-hydroxyaldehyde/keltone or alpha-halogenated aldehyde/keltone to synthesize thia-olefin derivatives in a queous media; using thio-olefin compounds with alpha, beta-unsaturated hydroxy compounds, C-C treble bond, C-N treble bond, C-C double bond, N-N double bond, C-N double bond, C-S double bond, epoxy and its derivatives, aziridine and its derivatives, cyclopropane and its derivatives and halogenated carboxy to synthesize sulfoether compounds in a queous media.

含水介质中有机硫化合物的合成方法，本发明属于有机合成方法，用硫缩烯酮类化合物与羰基化合物、缩醛/酮、腙、肟、脎、烯胺在含水介质中合成缩硫醛/酮化合物，与α-羟基醛/酮或α-卤代醛/酮在含水介质中合成噻烯类衍生物，与α，β-不饱和羰基化合物、碳碳叁键、碳氮叁键、碳碳双键、氮氮双键、碳氮双键、碳硫双键、环氧乙烷及其衍生物、氮杂环丙烷及其衍生物、环丙烷及其衍生物、卤代烃等在含水介质，中合成硫醚化合物。

PD model was established by microinjecting 6-hydroxy-dopamine into mesencephalic substantia nigra in the right brain.

采用右侧黑质注射微量6-OHDA诱导PD大鼠模型，假手术组注射等体积的生理盐水。

The result showed that manganese redox bacteria all have metachromatic granules and Poly-β-hydroxy butyrate, and easy to form flora, which are suitable for the growth in oligotrophic water environment.

研究表明，锰氧化还原菌均具有异染颗粒和类脂粒，易形成菌胶团，适于在贫营养水环境中生长。

Because of the strong interaction between the trimethychlorosilicane and surface hydroxy groups of mordenite, silylation is used to modify mordenite.

本文旨在通过硅烷化、脱铝改性丝光沸石，以提高丝光沸石疏水性能，为疏水沸石的开发利用提供一些基本数据和实验依据。

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。