冷原子荧光法测定地面水和土壤中的痕量总汞

本文推导了汞元素冷原子荧光测试的理论公式，着重研究了载气种类；载气流速；工作电压；水蒸气；介质酸度；还原剂用量等１０项因素对测定结果准确度的影响，确定了最佳实验条件，提出了地面水和土壤中痕量总汞的测试方法。同时分析了汞元素冷原子荧光法的系统误差和消除或减少系统误差的方法。     

枪弹痕迹采集与比对系统

针对国内枪弹痕迹识别的现状以及我国的实际情况,自主研究开发了一套弹头痕迹识别系统,用于枪弹痕迹的采集,档案的建立,图片的预处理以及对于发射弹头的枪支识别。     

利用废弃蛋白质制备氨基酸螯合微肥的研究进展

复合氨基酸螯合微肥是一种高效、无公害环境友好的绿色肥料，开发前景广阔，综述了废弃蛋白质水解制备复合氨基酸螯合微肥的研究现状，展望了氨基酸螯合微肥研究领域的发展。     

Modelling of the relationship betwen trace elements and three species of sulfur in coal

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Analysis of trace elements in air particulate matters by non-suppressed ion chromatography

The application of non-suppressed ion chromatography for monitoring of trace elements in air particulate matter was studied in the present investigation. The results indicate that the use of microwave acid digestion method is superior in comparison with the conventional thermal acid digestion method as it leads to higher recovery, better reproducibility, lower volatility loss, better protection against environmental contamination and much less digestion time (5 minutes vs. 24 hours). The use of eluent as extractant is shown to reduce the water dip problem in the chro-matogram. The addition of chelating agent in the eluent coupled with UV detection is shown to provide satisfactory chromatographic separation and good sensitivity for the analysis of transition metals present in the air particulate matter. Using the U.S. National Bureau of Standards Reference Material 1648 Urban Particulate Matter as standard for checking, the analytical procedure is shown to give good recovery and reproducibility for the d     

Transport of atmospheric trace elements and dust-soil to the Western Pacific Ocean

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痕量离子促进厌氧消化过程的试验研究

用正交试验方法研究了Ｍｇ，Ｍｎ，Ｍｏ，Ｎｉ，Ｃｏ痕量金属离子对厌氧消化过程的促进作用，试验发现，当Ｍｇ离子为０．６ｍｇ／Ｌ，Ｍｎ，Ｍｏ，Ｎｉ，Ｃｏ离子为１．０ｍｇ／Ｌ的组合浓度时，厌氧污泥活性提高最明显，同时还得到了这些痕量离子促进厌氧消化过程的主次顺序。     

土壤锌、铜、铁、锰形态区分方法的选择

用化学连续提取的方法将土壤中的锌、铜、铁、锰依结合状态区分为交换态、碳酸盐结合态(石灰性土壤)、氧化锰结合态、有机结合态、无定形氧化铁结合态、晶形氧化铁结合态和硅铝酸盐矿物态.初步认为选定的形态及提取方法适于土壤中锌、铜、铁、锰等元素的研究.     

地幔端元组分的微量元素地球化学研究综述

结合国内外研究现状，对利用同位素地球化学所确定的地幔端元组分DMM、HIMU、EM1和EM2在微量元素地球化学上的特征进行了综述，并对其成因进行了讨论。     

Preliminary study of the correlation between trace elementsin human hair, liver and kidney by protoninduced X-ray emission analysis

This paper deals with the determination of trace elements in normal human hair, liver and kidney by Proton Induced X-ray Emission (PIXE) analysis. Sampling, specimen preparation and experimental procedures are described in detail. The accuracy of our system has been checked up with the determination of standard reference materials. The preliminary results on correlations between trace elements in human tissues are discussed. Application of the method described in the paper gives evidence in favour of the PIXE as a good tool on environmental life elements and health studies.