| Project/Area Number |
07650974
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
工業分析化学
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| Research Institution | Yamanashi University |
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Principal Investigator |
IWATSUKI Masaaki Yamanashi University, Fac.Engineering ; Professor, 工学部, 教授 (20020430)
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| Project Period (FY) |
1995 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1997: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1996: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1995: ¥1,100,000 (Direct Cost: ¥1,100,000)
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| Keywords | Airborne particulate matter / systematic state analysis / organic solvent-soluble component / water-and acid-soluble component / acid-insoluble component / elemental carbon / ICP-atomic emission spectrometry / X-ray analysis / 水溶性成分 / 酸可溶性成分 / 結晶性成分 / 状態別分離 / 抽出分離 / 重液分離 / X線回折分析 / 蛍光X線分析 |
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| Research Abstract |
In recent years, the pollution of airborne particulate matter is little improved in Japan and some advanced nations and become more serious in some developing nations. Its analysis is very important for preservation of atmospheric environment. Although airborne particulate matter is a very complex multi-component mixture, usually its mass concentration only or sometimes elemental composition has been measured. It is desirable to develop a systematic analytical method by which many important informations can be efficiently obtained from the same sample.
In this study, a systematic method combining water and dilute-acid extraction with ICP-atomic emission spectrometry (AES), ion chromatography and ion-selective electrode has been developed for the determination of water-soluble and dilute-acid soluble components. Several metallic elements were detected and determined in organic solvent-soluble components by ICP-AES.Some compounds in the extraction residues were determined by a combined method of heavy liquid separation and X-ray diffractometry. A simple preparation method of thin-layr standard samples with activated carbon for X-ray spectrometry has been developed and successfully applied to the multi-element determination of airborne particulate matter and its extraction residues. Furthermore, a thermal method has been developed for the fractional determination of elemental carbon and total soluble and insoluble organic compounds in airborne particulate matter. The systematic state analysis of airborne particulate matter can be attained by a combination of these developed methods.
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