硼氢化钾-原子荧光光谱分析法测定水中硒仪器参数条件优化及可靠性分析

结合水环境监测与评价工作的实际，研究水中硒测定方法（SL327．3-2005和GB／T5750．6—2006）。通过实验，全面分析了硼氢化钾-原子荧光光谱分析法测定水中硒的最佳适宜条件，并对仪器的参数及条件进行优化设置。该方法的检出限为0．0002mg／L，加标回收率为97．1％-105％，保证了检测数据准确性、精密性、代表性和方法的可靠性。     

离子色谱法测定地表水中氟化物的方法探讨

探讨了离子色谱法测定地表水中氟化物的影响因素：水质样品的采集保存；水质样品所含成份；实验用水、试剂纯度、实验器皿的影响；使用离子色谱仪测定过程中对氟化物的影响。认为应切实采取措施，消除干扰。     

Male reproductive success: paternity contribution to queens and workers in Formica ants

The relative number of workers and female sexuals fathered by two males mated with a queen were directly assessed using microsatellite and allozyme markers in field colonies of the ants Formica exsecta and F. truncorum. In both species one of the two males consistently fathered more offspring than the other. There was, however, no evidence that one male might be particularly successful in fathering a disproportionally high proportion of female sexuals relative to the proportion of workers. Moreover, in F. exsecta, the proportions of worker pupae and worker adults fathered by each male did not differ significantly between cohorts. The most likely explanation for this pattern is that females store different amounts of sperm from the two males they mated with. Received: 10 January 1997 / Accepted after revision: 22 March 1997     

长江三角洲地区外商直接投资空间分布及其效应研究

文章利用1986-2005年的历年资料，分析了长江三角洲FDI的分布特点及其影响因素；并分两个时段就FDI对长江三角洲经济增长的短期效应和长期效应进行了实证分析。研究表明：长江三角洲FDI主要集中长江以南地区，现有的FDI规模、区域市场容量等是主要影响因素。FDI对长江三角洲经济增长无论短期还是长期都有显著的促进作用。     

Assessment of the Age Structure of Sable Samples Using Three Methods of Age Determination

The age structure of sable samples has been analyzed on the basis of parameters obtained by three methods of age determination: by annual cementum layers (Klevezal, 1988), canine root canal width (Smirnov, 1960), and the degree of development of the mastication muscles and sagittal crest on the skull (Timofeev and Nadeev, 1955). It has been found that the first two methods produce similar results (r = 0.95) that are suitable for use in the practice of monitoring and commercial game management. The third method is simpler but less accurate and can be recommended only for the preliminary assessment of age ratios in populations. The results of such assessment by the method proposed by Klevezal are sufficiently accurate for a detailed analysis of population structure and dynamics of its reproductive core, but this method is laborious and involves a complicated histological procedure. When large samples are studied for the purposes of monitoring and management planning, the method proposed by Smirnov is preferable.     

日钢2×20万吨转底炉生产实践

介绍了日钢年处理2×20万t钢厂固体废弃物的转底炉还原工艺,其生产实践表明,该转底炉还原工艺是目前国内规模最大的,连续运转最成功的工业化生产工艺之一。     

A comprehensive action determination model: Toward a broader understanding of ecological behaviour using the example of travel mode choice

This paper examines a first version of a Comprehensive Action Determination Model (CADM) of ecological behaviour that incorporates intentional, normative, situational, and habitual influences on environmentally friendly behaviour. The main assumptions of the theory of planned behaviour (TPB), the norm-activation model (NAM), the theoretical concept of habit and the ipsative theory of behaviour were integrated into a comprehensive model. The model was tested using a structural equation modelling approach on a sample of 389 students in the domain of travel mode choice and compared to established less comprehensive models (TPB, NAM and a combination of both). The results show that all compared models had a good to excellent model fit and explained a substantial amount of variation in travel mode choice. The CADM, however, explained the greatest degree of variation as compared with the other models, at 65%. Subjective and objective situational constraints were responsible for most of the variation in travel mode choice in the CADM, but intentions and habits also had a significant impact. The influence of social and personal norms was mediated by habits and intention, while habits moderated the relationship between intention and behaviour. The importance of the CADM as a framework for other domains of ecological behaviour is also discussed.     

测定空气中甲醇的毛细管气相色谱方法研究

使用HP—Wax毛细管柱进行水样分析，甲醇和乙醇分离效果好，该方法的精密度和准确度高，每0.2μL的最低检出限为0．7ng。此法利用了化学工作站，使得分析更简单、方便。     

显色法测定环境样品中的纳米二氧化钛

水环境中纳米二氧化钛分析方法的建立是研究其环境行为的基础.以钛离子与H2O2的显色反应为基础,建立了用分光光度计测定含纳米二氧化钛水样、鱼样的方法.该方法简便可行,不需要复杂仪器设备,测定结果与ICP-AES测定方法相比无显著差异.     

原子荧光光谱仪同时测定样品中的砷和汞

用原子荧光光度计,采用顺序注射自动进样技术同时测定不同样品中的砷和汞,并进行了仪器工作条件的优化,砷、汞的检出限分别可达0．2μg/L和0．015μg/L,样品的加标回收率砷为92％～103％,汞为98％～104％,完全能够满足环保行业不同样品砷和汞的含量的检测。该方法具有一次性处理样品,同时测定样品中砷和汞含量的优点,操作简单、快速,节省试剂。