碎屑磷灰石对沉积物源判别的指示

基于单颗粒碎屑磷灰石原位分析的物源分析是沉积地质学研究的一种重要手段。磷灰石中Sr,Y和稀土等微量元素含量由Si O2含量和所在熔体中的分配系数控制,微量元素的含量在不同岩石的磷灰石中差异较大,可作为指示其母岩类型的重要指标。磷灰石在物源分析中的应用可归纳为以下3个方面:(1)元素地球化学,特征元素包括Sr、Y、稀土元素(REE)等;(2)同位素地球化学,包括Sr-Nd同位素、Lu-Hf同位素等;(3)单颗粒多法定年,即同颗粒磷灰石进行(U-Th)/He、裂变径迹和U-Pb定年分析。综合上述3个方面可获得磷灰石的母岩类型、形成条件和后期演化、源区抬升剥蚀史、沉积区沉降史等信息。尽管碎屑磷灰石的热年代学目前在沉积物源研究中运用广泛,但基于碎屑磷灰石元素及同位素地球化学(包括磷灰石U-Pb同位素定年)的沉积物源判别仍处于起步阶段,在沉积地质学、盆地分析、构造地质学等研究领域具有广阔的应用前景。国家自然科学基金项目“闽江不同季节入海悬浮沉积物的物源分析:来自微量元素和Sr-Nd同位素的约束”(编号:41806052);;福建省自然科学基金项目“闽江口沉积物的Nd同位素组成与物源示踪”(编号:2017J05067)资助~

A Research on Patent License in Technical Standard Establishment and Implementation

随着社会的进步与经济的发展，标准作为企业竞争的新武器，吸引了越来越多的目光。然而，随着我国《涉及专利的国家标准制修订管理规则（暂行）》（2009年11月征询意见稿）及《国家标准涉及专利的处置规则》（2010年1月征询意见稿）两个文件的公布，我们也看到，标准与专利的冲突依旧明显，而即将实施的法律法规并没有很好的解决冲突。本文分析了标准发挥作用的基础，在梳理国外及我国标准所含专利的许可制度现状与政策后，就完善我国技术标准所含专利的许可制度提出了建议。 本文分三章进行论述：第一章分析了标准与专利结合的必然性，归纳总结了标准与专利冲突的表现，并对冲突的原因进行了分析。第二章梳理了国外标准化制定组织的...With the social and economical development, technical standard has attracted profession’s more and more attention as a new weapon of enterprises competition. Through the newly announced “Regulations on Establishment of National Standards involved with Patent(temporary)”(consulting draft version in November 2009)and “Disposal Rules for the Inclusion of Patents in National Standards”(consulting draf...学位：法律硕士院系专业：法学院法律系_法律硕士(JM)学号：1302009115041

Development and Application of a High Sensitive Atomic Fluorescence Spectrometer

原子荧光光谱法是一种元素分析技术，现已被广泛应用于各类样品中的痕量/超痕量元素测定。原子荧光光谱仪器结构简单、成本低廉，十分符合我国现阶段国情。因而，大力推进原子荧光光谱仪器的研发和改进，具有重要的实用价值。本工作在国家重大科学仪器开发专项的支持下，研发了新型高灵敏度原子荧光光谱系统，并以该系统为检测器，结合相应的进样装置，研制了高灵敏度原子荧光元素浓度分析仪及高灵敏度原子荧光元素形态分析仪，同时评估了仪器性能并进行了实际样品的测定。全文主要内容如下： 第1章概述了原子荧光光谱法的原理、特点，介绍了高灵敏度原子荧光光谱仪器的发展历程，并提出了本工作的研究目标。 第2章的工作是以发展...Atomic fluorescence spectrometry (AFS) is a kind of widely used elemental analysis technique, which is commonly applied to the determination of trace/ultra trace element content in samples. AFS instruments have the advantage of simple structure and low running cost, which meet the present need of China. Thus it is of great significance to develop new AFS instruments. This work developed a new type...学位：理学博士院系专业：海洋与环境学院_海洋化学学号：2242010015358

Development and Evaluation of a High Sensitive Atomic Fluorescence Spectrometric System

1引言原子荧光光谱法(AfS)是一种选择性好、检测能力优异的痕量/超痕量元素分析方法,其仪器结构简单、易于维护,在各行业均具有非常广泛的应用基础。因而,研发新型AfS系统,改善仪器检测性能,无疑具有重大的实用意义。增加激发光源强度是提高AfS仪器灵敏度的有效途径之一。文献[1~4]将ICP-AfS/IfS仪器的空心阴极灯(HCl)光源供电方式改变为安培级大电流微秒脉冲供电(HCMP),并成功改善了仪器对Cu,Ag,zn,Al,CA,Eu,yb等元素的检出限。A high sensitive hydride generation( HG) atomic fluorescence spectrometric system was developed using high current microsecond pulsed hollow cathode lamp( HCMP-HCL) as the excitation source and its performance was evaluated.Test results confirmed that the excitation source could give out intensive atomic spectral lines.System precision( RSD,n = 7) was 1.1% for arsenic and 1.4% for selenium.Detection limits( DLs,3) were 0.0066 μg / L and 0.0075 μg / L,respectively.The developed AFS system was proved to have high reliability,low detection limit and remarkable improvement of analysis capability compared with that of commercial AFS instruments.国家重大科学仪器设备开发专项项目(No.2011YQ140149)资

Study on Arsenic/Selenium Speciation Analysis by a Modified High Sensitive Atomic Fluorescence Spectrometric System

将实验室自制的高灵敏度原子荧光光谱系统与色谱分离、在线紫外光前处理装置联用,实现了元素形态的液相色谱分离、在线紫外消解、蒸气发生及原子荧光光谱测定,并以砷、硒两元素为例对系统的分析性能进行研究。样品通过加热混旋提取、离心、过滤,使用反相色谱柱并以5.0 MMOl/l磷酸氢二铵缓冲溶液(PH 5.7)-0.5 MMOl/l四丁基溴化铵(TbAb)-1%甲醇为流动相进行分离;三价砷(ASO3-3)、二甲基砷(dMA)、一甲基砷(MMA)、五价砷(ASO3-4)可在7 MIn内进行分离和测定,硒代胱氨酸(SECyS)、硒代蛋氨酸(SEMET)、四价硒(SEO2-3)、六价硒(SEO2-4)的测定约需11 MIn。在优化实验条件下,方法检出限(dlS,S/n=3)为0.08~0.74μg/l;相对标准偏差(rSd,n=7)为1.4%~7.9%,实际样品的加标回收率为82.5%~116.5%;砷、硒各形态在0.28~40.0μg/l和0.38~80.0μg/l范围内线性良好。建立的联用系统稳定性好、检出限低,可实现样品中低浓度砷、硒形态的准确测定。A self-mode labs high sensitive atomic fluorescence spectrometric detection system combined with liquid chromatography,online ultraviolet photochemical digesting and vapor generation device was established and evaluated.Arsenic and selenium species in various samples were extracted by heating-shaking and centrifugal filtration.All the analytes were separated on a reversed-phase column using mobile phase of 5.0 mmol/L phosphate buffer(pH 5.7)-0.5 mmol/L tetrabutyl ammonium bromide(TBAB)-1% methanol.The separations of AsO3-3,DMA,MMA,AsO3-4and SeCys,SeMet,SeO2-3,SeO2-4were achieved within 7 min and 11 min,respectively.Under the optimized operating conditions,the detection limits(DLs,S/N = 3) were in the range of 0.08-0.74 μg/L,and the relative standard deviations(RSD,n = 7) were 1.4%-7.9%.The standard spiked recoveries for real samples were in the range of 82.5%-116.5%.Linearities were obtained in the ranges of 0.28-40.0 μg/L for arsenic species and 0.38-80.0 μg/L for selenium species.The developed system was successfully applied in the detection of low levels of arsenic and selenium species in matrices.国家重大科学仪器设备开发专项项目(2011YQ140149

Simultaneous Determination of Ultra-trace Level of As,Sb,Bi,Ge,Sn and Hg in Coastal and Estuarine Seawater by Chemical Vapor Generation and Inductively Coupled Plasma Mass Spectrometry

建立了化学蒸汽发生(CVg)电感耦合等离子体质谱(ICP MS)同时测定近岸及河口海水中超痕量AS、Sb、bI、gE、Sn和Hg元素的方法。研究了CVg过程中kbH4、盐酸和硫脲的浓度以及样品流速、载气流速、海水样品盐度等对方法分析性能的影响。结果表明,在0.70%盐酸、0.10 g/l硫脲、11.0 g/l硼氢化钾、载气0.40 l/MIn条件下,6种待测元素的信噪比最高。优化实验条件下,AS、Sb、bI、gE、Sn和Hg的质量浓度在0.1~5.0μg/l内呈良好线性,相关系数不低于0.996 6;方法对0.1μg/l加标样品的相对标准偏差(rSd,n=5)为3.9%~8.9%,实际海水样品的加标回收率为89%~112%;方法的流程空白为0.012~0.036μg/l,定量下限(lOQS,10σ)在0.006 7~0.026μg/l之间,可满足近岸及河口海水样品中超痕量元素测定的需要。A chemical vapor generation(CVG) and inductively coupled plasma mass spectrometric(ICP MS) method was proposed for the simultaneous determination of ultra-trace level of As,Sb,Bi,Ge,Sn,and Hg in coastal and estuarine seawater.Effects of operating parameters,including concentrations of KBH4,HCl and thiourea,pump flow rate and carrier gas flow rate on analytical performance were studied.The results showed that good signal to noise(S/N) ratios for all the analysed elements were obtained when 0.70% HCl,0.10 g/L thiourea,11.0 g/L KBH4,and 0.40 L/min carrier gas were used in the CVG procedure.The relative standard deviations(RSDs,n=5) for 0.10 μg/L spiked sample were in the range of 3.9%-8.9%.The spiked recoveries for the seawater samples were between 89% and 112%.The method blanks were in the range of 0.012-0.036 μg/L.The limits of quantitation(LOQs,10σ) for the developed method were obtained between 0.006 7 μg/L and 0.026 μg/L.The method could be applied in the simultaneous determination of As,Sb,Bi,Ge,Sn and Hg in coastal and estuarine seawater.近海海洋环境科学国家重点实验室自主创新项目(MELRI0703

Theoretical calculation and simulation of shallow dopants in InGaN single junction solar cell

通过氢有效质量理论(HEMT)对In0.65gA0.35n(高In组分,Eg=1.31EV)太阳电池材料进行分析,计算出其浅能级施主和受主的重要性质参数电离能:ΔEd~10.8MEV,ΔEA~90MEV.在此基础上得到了室温条件下In0.65gA0.35n的浅能级施主和受主强电离时的杂质浓度范围:施主9.56x108~4.57x1016CM-3,受主9.56x108~7.84x1016CM-3;并估算了产生杂质能带的最低杂质浓度:施主~1x1018CM-3,受主~5.79x1020CM-3.然后借助AMPS-1d软件对含有部分电离的浅能级施主、受主In0.65gA0.35n单结太阳电池进行模拟,详细讨论了施主能级和受主能级对载流子的俘获对太阳电池效率的影响.本文结果为IngAn单结和多结太阳电池的掺杂(尤其是P型掺杂)和制备提供了理论参考和帮助。Hydrogenic effective-mass theory(HEMT) was adopted to study the photovoltaic property of In0.65Ga0.35N(Eg=1.31 eV).The ionization energy of shallow donors and acceptors in In0.65Ga0.35N was calculated to be ΔED ～10.8 meV and ΔEA～90 meV,respectively.Based on these values,the doping concentration necessary to obtain strong ionization of shallow dopants was estimated to be 9.56×108-4.57×1016 cm-3 for donors and 9.56×108-7.84×1016 cm-3 for acceptors.The lowest doping concentration required to form impurity bands was found to be ～1×1018 cm-3 for donors and ～5.79×1020 cm-3 for acceptors.Using AMPS-1D software,the property of single junction solar cell containing partially ionized shallow dopants,was simulated.The effects of recombination of shallow dopants on the efficiency of the solar cell were analyzed and discussed in detail.The results are useful for doping(especially for p-type doping) and fabrication of InGaN-based single junction and multijunction solar cells.国家高技术研究发展计划(2006AA03Z409);厦门市政府科学和技术部研究项目(2006AA03Z110);广西自然科学基金(0731012);广西大学有色金属和高等材料加工新技术教育部重点实验室开放基金(GXKFZ-04)资

化学模拟生物固氮——Ⅸ 铁钼辅基模型化合物的合成和性能表征

本文曾在全国化学摸拟生物固氮协作组领导小组扩大会议(昆明,1980,8)上宣读。[中文文摘]采用乙二醇基阴离子作为活插头(可通过水解除去的双配位螯形配位体),对前文提出的合成方法作了重要改进,以期所合成的铁钼辅基模型化合物中Mo~(Ⅳ(Ⅲ))第一配位界内两个不稳定的配位体处于相邻的位置,如厦门模型Ⅲ(或厦门模型Ⅱ)所要求。合成和重组活性评价结果,重组活性比使用乙腈等为活插头的提高2个数量级,化学催化活性和选择性接近于天然FeMo-co水平。[英文文摘]A significant improvement has been made to the method previously proposed[3] for synthesizing FeMo-co modeling compounds. With the use of ethylene glycolate anion as labilizable blocking agent (hydrolyzable bidentatc chelating ligand)to protect two neighboring coordination sites in the first coordination sphere of MoIV(III) of the synthesized FeMo-co modeling compound, an increase in reconstituted-nitrogenase activity of 2 orders of magnitude of the sample synthesized (as compared with the use of acetoni-trile or other monodentare ligands as bloeking agents)has been obtained.Catalytic activity and selectivity assays as well as preliminary characterization by EPR method have also been made

Evaluation on difference of therapeutic efficacy of Jiawei Xiaoyao Granules and Pills in treatment of emotional disorder during perimenopause based on Greene Climacteric Scale

目的:在前期加味逍遥丸治疗围绝经期情绪障碍具有比较优势的基础上,基于grEEnE量表探讨其颗粒剂和丸剂不同剂型间疗效差异。方法:经筛选后患有情绪障碍的围绝经期女性75例随机等分为A、b、C3组,分别对应采用帕罗西汀、加味逍遥丸和加味逍遥颗粒剂治疗8周。所有患者在治疗前后各进行1次grEEnE及其子因子评定,并在观察期结束时进行TESS评定。结果:grEEnE总分差及其焦虑、抑郁因子分差:3种治疗方法均能改善,且相互间无显著差异;grEEnE性因子和血管因子分差:后二组均优于A组(P<0.01);TESS评分:与A组比较,b、C组均有统计学意义(P<0.01),评分均小于A组,且后二组间无显著差异。结论:加味逍遥的2种剂型间疗效无显著差异,考虑到帕罗西汀的不良反应,治疗该病加味逍遥的2种剂型都值得推荐。Objective: To investigate the difference in therapeutic efficacy between Jiawei Xiaoyao Granules and pills based on the preliminary research of treating emotional disorder during perimenopause with Jiawei Xiaoyao Pills and Greene Climacteric Scale.Methods: 75 female patients with emotional disorder during perimenopause were slected and randomly divided into 3 groups as group A, B and C.Patients in the 3 groups were treated with paroxetine, Jiawei Xiaoyao Pills and Jiawei Xiaoyao Granules respectively for 8 weeks.Greene and Greene factors assessment were carried out in all the patients before and after treatment, and the TESS assessment was carried out at the end of the observation period.Results: The three therapies all could improve the gap in total score of Greene and its factors as anxiety and depressed, and the difference among these three groups was no significant.The factors of Greene and gap in score of vascular factors of group B and C was better than that of group A(P<0.01).The difference in TESS score between group A and group B and C was significant(P<0.01), while the difference between group B and group C was not significant.Conclusion: The difference in curative effect between the two formulations was not significant.Because of the adverse reactions of paroxetine, in the treatment of emotional disorder during perimenopause, the two formulations of Jiawei Xiaoyao Powder were worth to be recommended.国家自然科学青年基金项目(No.81302960)~