四(3,4-亚甲二氧基苯基)卟啉及其钴配合物的合成与表征

以3,4-亚甲二氧基苯甲醛(胡椒醛)和吡咯为原料合成3,4-亚甲二氧基苯基卟啉及其钴配合物,探索溶剂、催化剂等反应条件对产品纯度及产率的影响.结果表明,以丙酸为溶剂及催化剂制备3,4-亚甲二氧基苯基卟啉的产率高、纯度好.新化合物结构分别被UV-Vis,IR,1HNMR及元素分析所证实.     

5-(3,4-亚甲二氧基-6-硝基)苯基-10,15,20-三对甲氧基苯基卟啉的微波合成及结构表征

利用微波加热法,以6-硝基胡椒醛、对甲氧基苯甲醛、吡咯为原料,合成了5-(3,4亚甲二氧基-6-硝基)苯基10,15,20-三对甲氧基苯基卟啉．新化合物结构分别经UV-Vis,IR,^1H NMR,元素分析证实。     

2—甲基—6，7—亚甲二氧基—3—喹啉乙酮的合成

以胡椒醛为原料,在室温条件下,与硝酸和乙酸酐结合生成的温和硝化剂（CH3COONO2）反应,硝化得6-硝基胡椒醛1.1被七水硫酸亚铁在氨水的存在下还原成为6-氨基胡椒醛2.2在乙醇钠的催化下,与乙酰丙酮发生Friedlander缩合反应,得到化合物2-甲基-6,7-亚甲二氧基-3-喹啉乙酮3.3为未见文献报导的化合物。     

苯丙胺类毒品衍生化方法的研究

本文考查了衍生化试剂对苯丙胺类毒品(AM、MAM、MDA、MDMA)的衍生化效果与衍生化条件,建立了该类毒品三氟乙酰化后的GC/MS-SIM分析方法和定性定量分析条件。经MBTFA衍生化后最小检测限(S/N=3)分别为:苯丙胺0.05ng、甲基苯丙胺0.1ng、3,4-亚甲二氧基苯丙胺0.05ng、3,4-亚甲二氧基甲基苯丙胺0.1ng。在上述4种苯丙胺类毒品标准品的浓度为0.1μg/mL时,5次测定的RSD分别为:苯丙胺4.17%、甲基苯丙胺13.45%、3,4-亚甲二氧基苯丙胺10.18%、3,4-亚甲二氧基甲基苯丙胺12.5%。该方法快速、灵敏、准确,可用于生物检材中低含量苯丙胺类毒品的定性定量分析。     

2,3,7-三羟基-9-(3,4-亚甲二氧苯甲基)-6-荧光酮与锆(Ⅳ)显色反应的研究及应用

本文研究了在阳离子表面活性剂溴化十六烷基三甲铵(CTMAB)存在下,锆(Ⅳ)与2,3,7-三羟基-9-(3,4-亚甲二氧苯甲基)-6-荧光酮(简称胡椒基荧光酮,9-PF)的显色反应.在0.10～0.15mol.L-1的盐酸介质中,Zr(Ⅳ)与9-PF形成14的桔红色配合物,其λmax=529nm,表观摩尔吸光系数ε=1.31×105L.mol-1.cm-1,Zr(Ⅳ)在0～9μg/10ml范围内符合比尔定律,采用石油醚萃取分离铁,能显著提高分析方法的选择性.采用拟定方法测定了钢铁样品中的微量Zr(Ⅳ),结果满意.     

3,4-亚甲二氧基硝基苯合成和晶体结构

3,4-亚甲二氧基硝基苯由1,2-亚甲二氧基苯经硝化反应合成. 其晶体结构经X射线衍射测定为单射晶系,空间结构P21/c,Z=4,晶包参数为a=0.378 00(8) nm; b=1.000 3(2) nm; c=1.822 4(4) nm; β=97.33(3)°; Mr=167.12; V=0.683 4(2) nm3, Dc=1.624 g/cm3, μ(MoKα)=0.136 mm-1, F(000)=344, R=0.070 7, wR=0.182 8. 3,4-亚甲二氧基硝基苯中所有原子位于同一平面上,其中O(1)最大偏离为-0.003 4 nm.     

乙酰基取代的酮和酚酮化合物与芳醛缩合反应的研究

为寻找具有生理活性的Troponoids,选择 3 乙酰基酚酮 1和2 乙酰基 7 甲胺基酮 6与 3,4 ,5 三甲氧基苯甲醛等取代醛反应得到缩合产物 2～ 5,7～ 9;缩合产物 3 (3,4 ,5 三甲氧基 )肉桂酰基酚酮 2和 3 (3,4 亚甲二氧基 )肉桂酰基酚酮 4与羟氨和苯肼进行缩合成环得到苯乙烯基取代的缩杂环酮化合物 10～ 13;化合物 1与 3,4 ,5 三甲氧基苯甲醛在原甲酸三乙酯和高氯酸存在下反应一步得到 2 (3,4 ,5 三甲氧基 )苯基 4 ,9 二氢环庚并吡喃 4 ,9 二酮 14。以上化合物 2～ 5,7～ 14的结构经光谱分析和元素分析予以证实     

β-环糊精与六种不同纤维接枝反应历程的研究

根据β-环糊精(β-CD)分子形态和空腔的结构特性,分析和探讨了β-CD与6种不同纤维的反应历程,分别为:通过以环氧基为交联桥,制备β-CD接枝纤维素纤维;采用β-CD和1,2,3,4-丁烷四羧酸对羊毛织物进行接枝研究;利用含磺酸基的β-CD对聚酰胺纤维进行改性,将β-CD接枝到聚酰胺纤维上;选用乙二醛或戊二醛为交联剂改性壳聚糖生成交联结构并接枝到壳聚糖纤维上;以邻碘酰基苯甲酸为氧化剂合成环糊精单醛,在弱酸性的条件下通过还原氨化反应接枝到蚕丝纤维上;利用β-CD与多元羧酸反应所得的共聚物接枝聚酯纤维.     

3,4-二(2-甲氧乙氧基)苯腈的简易合成

3,4-二(2-甲氧乙氧基)苯腈可以由3,4-二(2-甲氧乙氧基)苯甲醛制得,但是现有的制备方法反应条件苛刻、反应时间冗长。3,4-二(2-甲氧乙氧基)苯甲醛与羟胺盐酸盐在甲酸中反应,添加一定量的催化剂吡啶,在甲酸的回流温度下反应可在1h内完成,经过简单的后处理,3,4-二(2-甲氧乙氧基)苯腈的收率在92%以上,纯度在98%以上。     

毛细管区带电泳定量分析苯丙胺类毒品

本文采用区带毛细管电泳(CZE)模式,用单一的磷酸盐缓冲体系对4种苯丙胺类毒品进行了分离和定量参数的考查。使用100mM磷酸盐缓冲液,pH2·4,电迁移进样,苯丙胺、甲基苯丙胺(MAM)、3,4-(亚甲二氧基)苯丙胺(MDA)、3,4-(亚甲二氧基)甲基苯丙胺(MDMA)及其内标物苯乙胺实现了基线分离;用内标峰面积和峰高比进行定量考查,获得了良好的线性关系;定量的相对标准偏差一般在10%以内;最小检测限为0·1μg/ml。该方法可用于缴获毒品或中毒生物检材中苯丙胺类成分的定性定量测定。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.