磷灰石及其流体包体的SRXRF分析

采用同步辐射X荧光技术对格尔柯金矿花岗闪长岩中的副矿物——磷灰石进行了分析。磷灰石成分分析显示原始岩浆属铁镁质Ⅰ型花岗岩，具有富集轻稀土、Nd消耗的特征，流体包体成分分析显示岩浆热液中含有Fe、Mn和微量的As、Co、Zn。     

用同步辐射X荧光分析血浆蛋白质的微量元素

用同步辐射X荧光(SRXRF)分析技术与凝胶色谱生化分离相结合，分析了用抗肿瘤药物顺铂处理过的和未处理过的小鼠血浆的大分子蛋白质。对以轻元素为基体的小量样品，用X荧光谱中的康普顿散射强度作为质量的因子，获得了在大于22ku分子量的蛋白质中Pt、S、Ca、Fe、Ni、Cu、Zn、Se、Br和Sr等元素含量在不同样品问的相对变化。由此推测，经顺铂处理后，Pt元素可与血浆中的大分子蛋白结合，含CM和S的大分子蛋白含量明显升高，而含Zn的减少。     

汝瓷成分的线扫描分析

用SRXRF技术对汝瓷断面从釉到胎进行了十一种元素含量的线扫描分析，结果表明：在汝瓷胎、釉之间的确存在一个元素含量与两者相差很大的中间层。我们认为这时汝瓷在烧制过程中，瓷釉在形成玻璃态的同时渗入了瓷胎表面而形成的，这个中间层在实体光学显微镜上能明显看出而在偏光显微镜和扫描电镜下看不到。此工作不仅有助于研究汝瓷的结构和烧造工艺，也将有利于SRXRF无损分析技术在考古领域的运用。     

用同步辐射X射线荧光微探针技术研究硝酸镧对单个平滑肌细胞内重要元素分布的影响

应用同步辐射X射线荧光微探针技术（SRXRF），观察稀土元素化合物硝酸镧La(NO3)3(浓度为10^-8mol/L）对培养的单个大鼠平滑肌细胞内重要元素分布的影响，获得La(NO3)3作用4h,8h,24h时单个细胞内P，K，Ca,Fe,Cu,Zn,La等元素含量的相对计数。实验中观察到，10^-8mol/L La^3 持续作用后，细胞内K，Ca,Fe,Cu,Zn等元素含量分布发生改变。结果表明，La^3 可能富集在细胞内，影响细胞内某些重要元素含量的分布，可能是引起细胞生理生化变化的机制之一。     

Application of nuclear analytical techniques to trace elements in Cenozoic basalt and their mantle xenoliths from Aershan area in Inner Mongolia, China

Basaltic samples from different locations in Aershan area determined by instrumental neutron activation analysis (INAA) have the same distribution patterns of REE and trace elements. The similar REE contents of the same minerals without inclusions from different xenolith suggest that the mantle source region under different active volcanoes have the same composition. The REE content differences between the same minerals with and without melt inclusions selected from the same mantle xenolith indicate that the melt inclusions are rich in REE. The same patterns of trace elements of inclusions and host minerals from different xenolith analyzed by SRXRF suggest that the mantle fluid has no notable heterogeneity in Aershan area.     

Characterization of the silver coins of the Hoard of Beçin by X-ray based methods

Four hundred sixteen silver coins stemming from the Ottoman Empire (16th and 17th centuries) were analyzed in order to confirm the fineness of the coinage as well as to study the provenance of the alloy used for the coins. As most of the coins showed the typical green patina on their surfaces due to corrosion processes which have led to the depletion of copper in the near-surface domains of the silver coins in comparison to their core composition, small samples by cutting splinters from the coins had to be taken, embedded in synthetic resin and cross-sectioned in order to investigate the true-heart metal composition. The type of the alloy was investigated as well as if coins minted in different locations demonstrated homogeneous traits concerning the predominant impurities which could suggest a common ore. Several X-ray based techniques (μ-XRF, μ-SRXRF and μ-PIXE) could be applied in order to determine the silver contents as well as the minor and trace elements. Finally, SEM/EDX was applied in order to study the homogeneity/heterogeneity of the coins and the presence of surface enrichments. In general, the silver content of the analyzed specimen varies between 90% and 95%. These outcomes have not supported the historical interpretations, which predict that during the period studied a debasement of approximately 44% of the silver content of the coins should have occurred.     

同步辐射X荧光方法用于鼠脑锌元素分布的研究

为了探索锌等金属元素在脑中的精细分布与ZnT3 RNA表达之间的相互作用和功能,本项研究使用同步辐射X射线荧光技术(SRXRF)测定小鼠全脑和脑切片中锌等金属元素的分布,同时使用反转录多聚酶链式反应(RT-PCR)检测小鼠各组织中的ZnT3 RNA的表达量。分析结果表明,脑中锌元素不是均匀分布的,主要分布在皮层、海马和齿状回部位,它们的锌浓度比道束区高出5-10倍。与此结果相对应的是大脑皮层、海马和睾丸中的ZnT3 RNA有较高丰度,而其他组织中未检出ZnT3 RNA。进一步的推断提示ZnT3能促进胞浆内的锌富集于神经元囊泡中,通过介导胞浆锌的跨膜转运过程构造囊泡的“锌池”。     

寺龙口青瓷的SRXRF研究与统计分析

本文采用同步辐射X荧光对浙江寺龙口越窑的80块古瓷样品进行了分析，样品中V、Ni、Zn和Mn具有一定的年代变化规律性。实验数据的统计分析结果表明，越窑古瓷中元素含量具有一定的年代和产地特征，SRXRF与中子活化实验的统计分析结果相符合。     

SRXRF Experiments and Analytical Methods of Mineral Individual Fluid Inclusions

This paper focuses on the micro-beam and trace element non-destructive experiment and analytical method of mineral fluid inclusions by synchrotron radiation X-ray fluorescence (SRXRF) microprobe at Beijing Synchrotron Radiation Facility (BSRF). The experimental instrument, measurement process and calculating method are introduced. A set of oil- and gas-containing typical mineral fluid inclusions taken from the Tazhong and Lunnan oilfields in the Tarim Basin were analyzed non-destructively. The trace element contents in the fluid inclusions may provide guidance for oil and gas exploration and development.     

红绿彩瓷化妆土的线扫描分析

采用同步辐射X射线荧光分析方法(SRXRF),对宋金时期红绿彩瓷的断面进行线扫描分析,发现在釉和化妆土以及化妆土和胎的交界处,均存在明显的过渡层.不同元素在两个过渡层的变化规律不完全一致,与釉、化妆土及胎的原料密切相关,据此可判断瓷器是否施加过化妆土.化妆土中Fe、Ti含量明显低于胎,有利于提高瓷釉的白度和质量.结合岩相分析发现化妆土中富含云母类矿物,这将加强白色反射效果.该类化妆土在已往的白瓷化妆土中均未见报道,值得进一步研究.