the 1
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We investigated constituent of triterpenoid saponins ofAlbizzia, two new compounds together with two known compounds were isolated from Albizzia julibrissin Durazz. by using column chromatography (macroreticular resin, silica gel, Sephadex gel, reverse phase silica gel),preparative HPLC methods et al.On the basis of spectroscopic analysis, including IR,ESI-MS,~1H-NMR,~(13)C-NMR,HMBC,HMQC,~1H-~1HCOSY and chemical methods, the structure of two new compounds were identified as 3 - O -[β-D-xylopyranosyl(1→2)-β-D-fucopyranosyl (1→6)-β- D -2- deoxy - 2 - acetoamidoglucopyranosyl] -21-O-[(6S)-2- trans- 2,6-dimethyl - 6 - O-β- D - quinovopyranosyl -2,7- octadienoyl] - acacic acid- 28 - O-β-D-glucopyranosyl(1→3)[α-L-arabinofuranosyl(1→4)]-α-L-rhamnopyranosyl(1→2)-β-D-glucopyranoside acacic acid 3- O -β- D- glucopyranosy(1→3)-β- D- fucopyranosl(1→6) [β-D- xylopyranosyl (1→2)]-β-D-glucopyranoside ;two known compounds were acacic acid lactone 3- O -β-D- xylopyranosyl-(1→2)-β-D-fucopyranosl (1→6)- 2-deoxy -2 -acetoamido -β-D- glucopyranoside ; acacic acid lactone 3- O-β-D-xylopyranosyl(1→2)-α-L- arabinopyranosl (1→6)- 2- deoxy - 2- acetoamido -β-D-glucopyranoside . The study lays chemical foundation and chemical reference substance for enhancing quality standard of Albizzia julibrissin Durazz.
本研究论文在综述国内外对合欢属Albizzia三萜皂苷化学成分和药理作用研究进展的基础上,利用传统植化分离手段和现代分离技术,包括大孔树脂、硅胶、葡聚糖凝胶、反相硅胶等柱色谱,制备高效液相色谱法等技术从中药合欢皮中分离得到了4个化合物,其中,2个新化合物和2个己知化合物,并进一步通过现代分析技术IR,ESI-MS,~1H-NMR,~(13C-NMR,HMBC,HMQC,~1H-~1HCOSY等和化学方法鉴定了2个新化合物的结构分别是:3-O-[β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖基]-21-O-[(6S)-2-反式-2,6-二甲基-6-O-β-D-吡喃鸡纳糖基-2,7-辛二烯酸基]-金合欢酸-28-O-α-L-呋喃阿拉伯糖基(1→4)[β-D-吡喃葡萄糖基(1→3)]-α-L-吡喃鼠李糖基(1→2)-β-D-吡喃葡萄糖苷,金合欢酸3-O-β-D-吡喃葡萄糖基(1→3)-β-D-吡喃夫糖基(1→6)[β-D-吡喃木糖基(1→2)]-β-D-吡喃葡萄糖苷;2个已知化合物结构分别是:金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷,金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-α-L-吡喃阿拉伯糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷。
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Major equipment includes: J1VMC400 FANUC Oi-MB processing center Taiwan, Mpq-30 CNC punch one Taiwan, Amada ARZES255NT NC-1 Taiwan, Amada RG-100 CNC bending machine Taiwan, Amada RG-355 NC% 1 Taiwan-bending, high-precision CNC lathes 10, a universal tool grinder Taiwan, 2-line cutting, a planer Taiwan, 315 t and 500 of a hydraulic machine Taiwan, welder 5, It-315T Punch 25 Taiwan, the single hexagonal automatic lathes 10, 22 meters lathe Taiwan, cutting plate machine 5, with 1 Saw Taiwan, a Taiwan unmotivated mill, a plasma cutting machine Taiwan, three welding, riveting head of a Taiwan, 63 T Bending Machine 1 Taiwan, three carbon dioxide arc welding; otherwise ordinary lathe, tapping machine, drilling and other equipment several.
主要设备包括:J1VMC400 FANUC Oi-MB 加工中心1台、Mpq-30数控冲床1台、Amada ARZES255NT数控冲1台、Amada RG-100数控折弯机1台、Amada RG-355数控折弯机1台、高精度数控车床10台、万能工具磨床1台、线切割2台、刨床1台、315t及500液压机各1台、对焊机5台、It-315T冲床25台、单轴六角自动车床10台、仪表车床22台、剪板机5台、带锯床1台、无心磨1台、等离子切割机1台、氩弧焊3台、铆头机1台、63T折弯机1台、二氧化碳保护焊3台;另有普通车床、攻丝机、钻孔机等设备数台。
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The linear ranges of determination for pyrogallol, phloroglucinol, pyrocatechol, resorcinol and parodioxybenzene were 1.0×10〓~2.0 ×10〓mol l〓, 1.0×10〓~1.0×10〓mol l〓, 1.0×10〓~6.0×10〓mol l〓, 1.0 ×10〓~2.0×10〓mol l〓 and 1.0×10〓~6.0×10〓mol l〓 respectively, and their detection limits were 7.2×10〓mol l〓, 6.8×10〓mol l-1, 2.1 × 10〓mol l〓, 7.1×10〓 mol l〓 and 2.2×10〓mol l〓 respectively.
该方法测定连苯三酚、间苯三酚、邻苯二酚、间苯二酚和对苯二酚的线性范围分别为1.0×10〓~2.0×10〓mol l〓,1.0×10〓~1.0×10〓 mol l〓,1.0×10〓~6.0×10〓mol l〓,1.0×10〓~2.0×10〓mol l〓和1.0×10〓~6.0×10〓mol l〓;检出限分别为7.2×10〓mol l〓、6.8×10〓 mol l〓、2.1×10〓 mol l〓、7.1×10〓mol l〓和2.2×10〓mol l〓。
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Secondly, we discuss the features of prediction models GM (1, 1) and SCGM (1, 1), and indicate that both are modeling methods for energy system, in which GM (1, 1) model requires a tiny develop coefficient while SCGM (1, 1) model not, while both are sensitive to disturbances and mutations.
讨论了GM(1,1)预测模型和SCGM(1,1)预测模型的特点,指出两者都是对能量系统建模的方法,其中GM(1,1)模型要求发展系数较小,而SCGM(1,1)模型则无此要求,两者对于扰动和突变都相当敏感。
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Chromatography peaks were obtained by GC-MS and 56 compounds were identified. The main components were linalyl butyrate (30.212%),(1α, 3α, 4β, 6α)-4,7,7-trimethyl-bicycloheptan-3-ol (10.940%),-4-carene (1.826%), 4-methylene-1-(1-methylethyl)-bicyclo [3.1.0] hexane (1.109%),β-myrcene (1.170%), limonene (5.784%), 3, 7-dimethyl-1, 6-octadien-3-ol (5.742%), n-hexadecanoic acid (0.914%) and-9, 12-octadecadienoic acid (2.952%), etc.
用GC-MS分离出69个峰,鉴定出56种物质,主要成分为:芳樟丁酸酯(30.212%)、(1α, 3α, 4β, 6α)-4,7,7-三甲基-双环[4.1.0]庚烷-3-醇(10.940%)、-4-蒈烯(1.826%)、4-亚甲基-1-(1-甲基乙基)-双环[3.1.0]环己烷(1.109%)、β-月桂烯(1.170%)、柠檬烯(5.784%)、3,7-二甲基-1,6-辛二烯-3-醇(5.742%)、n-棕榈酸(0.914%)、-9,12-十八碳烯酸(2.952%)等。
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The results showed that N6+TDZ0.05 mgL^(-1)+NAA0.01 mgL^(-1)+KT0.50 mgL^(-1) was most suitable for Platanthera mandarinorum with an induction rate of 92.5%; N6+TTDZ0.05 mgL^(-1)+KT0.50 mgL^(-1) was most suitable for Coeloglossum viride with an induction rate of 98%; N6+IAA0.01 mgL^(-1) was most suitable for Platanthera mandarinorum with a germination rate of 96%; N6+IAA0.01 mgL^(-1)+GA30.01 mgL^(-1) was most suitable for Coeloglossum viride with a germination rate of 94.5%.
结果表明,最适合长白舌唇兰原球茎和类原球茎诱导的培养基为N6+TDZ0.05mgL^(-1)+NAA0.01 mgL^(-1)+KT0.50 mgL^(-1),诱导率为92.5%;最适合凹舌兰原球茎和类原球茎诱导的培养基为N6+TDZ0.05 mgL^(-1)+KT0.50 mgL^(-1),诱导率为98%;长白舌唇兰类原球茎萌发为完整植株的最佳培养基为N6+IAA0.01 mgL^(-1),萌发率为96%;凹舌兰类原球茎萌发为完整植株的最佳培养基为N6+IAA0.01 mgL^(-1)+GA30.01 mgL^(-1),萌发率为94.5%。
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The adjusted relative risk (95% confidence interval ) of MI associated with each standard deviation increase in anxiety variable was 1.37 (95% CI 1.12 to 1.68) for psychasthenia, 1.31 (95% CI 1.05 to 1.63) for social introversion, 1.36 (95% CI 1.10 to 1.68) for phobia, 1.42 (95% CI 1.14 to 1.76) for manifest anxiety, and 1.43 (95% CI 1.17 to 1.75) for overall anxiety. These relationships remained significant after further adjusting for health behaviors (drinking, smoking, and caloric intake), medications for hypertension, high cholesterol, and diabetes during follow-up and additional psychologic variables (depression, type A behavior, hostility, anger, and negative emotion).
心梗相关的焦虑变量升高的标准差校正的相对危险度为1.37(95%可信区间1.12到1.68),这些联系在进一步校正健康习惯饮酒、抽烟和热量摄入)后,随访期间治疗高血压、高胆固醇、糖尿病和其他心理变量(抑郁、A型行为、敌意、愤怒和消极情绪)后变得更显著。
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The preliminary bioassays indicated that, at 500 g/mL, 1-(o-tolyl-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonyl)semicarbazide (4g) and 1-(2,4-dimethyl- phenyl)-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonyl)semicarbazide (4k) showed inhibitory activities 90% and 80% against Blumeria graminis, respectively; and at 25 g/mL, 4-phenyl-4-(4-chloro-3-ethyl-1- methylpyrazol-5-ylcarbonylsemicarbazide (4c) showed inhibitory activity 70.1% against Botrytis cinerea and 1-2-nitro-phenyl-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonylsemicarbazide (4d) showed inhibi-tory activitiy 51.3% against Pyricularia oryzae.
初步生物活性实验结果表明,在500 mg/mL浓度下,化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2-甲基苯基)氨基脲(4g), 1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2,4-二甲基苯基)氨基脲(4k)对小麦白粉病菌的抑制率分别达到90%和80%;在25 mg/mL浓度下,化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-苯基氨基脲(4c)对黄瓜灰霉病菌的抑制率达到70.1%;化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-苯基氨基脲(4c)和1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2-硝基苯基)氨基脲(4d)对稻瘟病菌的抑制率均达到51.3%。
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The dry alga glomerules be homogenated with bead mill homogenizer for assay of total lipid and every fatty acid content each by chloroform methanol...
每一纲的微藻脂肪酸组成都有各自特点,绿藻纲中 1 6∶0、1 6∶1(n - 7)、1 8∶1 (n - 9)含量较高,但微绿球藻中 1 6∶1 (n- 7)、2 0∶5(n - 3)含量远高于其他绿藻;金藻纲中含大量1 4∶0、1 6∶0、1 8∶3(n - 3)、2 2∶6(n - 3);硅藻纲中 1 4∶0、1 6∶0、1 6∶1 (n - 7)、EPA含量较高;黄藻纲的异胶藻富含1 6∶0、1 6∶1 (n - 7)和EPA。
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Based on the results, there is an increase in total emergy input from 1.126×10^22 to 1.661×10^22 seja(-1), with an ob-served increase in total emergy output from 5.002×10^20 to 1.383×10^22 seja^(-1) for 1952~2005. Ecological function potential drops from 54.08% to 37.02% and the basic population capacity increases from 199 400 to 315 100. Emergy self-support ratio drops from 74.58% to 54.13%, while emergy investment ratio increases from 34.0% to 85.0%. Emergy density increases from 1.34×10^11 to 1.97 ×10^11 sejm^(-2) and emergy/money ratio decreases from 4.93×10^14 to 1.81×10^13 sej$^(-1). There is an increase in environment load ratio and net energy yield ratio from 0.85 to 1.70 and from 0.18 to 1.82 respectively.
结果表明,1952~2005年期间,阿坝州农业生态系统总能值投入从1.126×10^22 seja^(-1)增加到1.661×10^22 seja^(-1),总能值产出从5.002×10^20 seja^(-1)增加到1.383×10^22 seja^(-1),生态功能潜力从54.08%下降到37.02%,人口基本承载力从19.94万人增加到31.51万人,能值自给率从74.58%下降到54.13%,能值投资率从34.0%上升到85.0%,能值密度从1.34×10^11 sejm^(-2)上升到1.97×10^11 sejm^(-2),能值货币比率从4.93×10^14 sej$(-1)降低到1.81×10^13 sej$(-1),环境负荷率从0.85上升到1.70,净能值产出率从0.18上升到1.82,可持续发展指数从0.20增加到1.07。
- 相关中文对照歌词
- Let Me Be The 1
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- From The Sun To The World (Boogie #1)
- Tonight On The Show (Truth Of The World Pt.1)
- The 1
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- 推荐网络例句
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And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.
同时,论述了一体化管理体系构建中的几个主要问题,包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。
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Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.
运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。
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If you're huffing and puffing at any point during the run, slow down and make sure you can take deep breathes.
如果你任何时候在跑步过程中气喘如牛,降低速度并且确保你能够深呼吸。