Development of a Sensitive Lazer Spctrophotometric Environmental Monitoring Device Using Droplet Method
液滴法灵敏激光分光光度环境监测装置的研制
基本信息
- 批准号:10650797
- 负责人:
- 金额:$ 2.56万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:1998
- 资助国家:日本
- 起止时间:1998 至 1999
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We developed and used the passive sampling device to measure NOx in SOx in air pollution. In the present work we have changed the passive sampler method to the droplet method. Because the passive sampler is, however, not fit to the high sensitivity and precise analysis and, therefore, unable to monitor micro-amounts of variable toxic substances in long period exposure.To meet the solution of disadvantage, we adopted the Dasgupta's droplet method. We use the light-emitting diode and the optical fiber to analyze the droplet which used in the experiment is the cylindrical chamber. In the center of the chamber there is a stainless steel tube. It is used to deliver the solution. And the tip of a stainless tube always keeps the droplet dripping. The gas stream is introduced into the cylindrical chamber at the top, from two oppositely located gas inlets, to achieve more symmetric flow profile around the droplet. Then the droplet collects the gas and is changed the color. The light from a high brightness LED illuminates the droplet. On the diametrically opposite side, the transmitted light is conducted by a plastic optical fiber to a photodiode equipped with an interface filter. A reference photodiode is placed at the back plane of the LED to provide a dual-beam referenced detection arrangement. Absorbance is computed as -log[ (Id-Id')/(Ir-lr') ] +Ko where Id and Ir are the respective photocurrents generated by the detector and the reference photodiode, Id' and Ir' are the corresponding dark currents, and Ko is an offset constant that compensates for the inequality between the intensities of the reference beam and the probe beam directed to the drop.Our purpose and goal are the application of the recent micromachining techniques to the droplet method. A microchip of several centimeter square can collect and analyze the gas sample. Also, microfabrication of the droplet method will give the smallest analysis device which can be applicable to various environmental samples.
我们开发并使用了被动采样装置来测量大气污染中SOx中的NOx。在本工作中,我们将被动取样器法改为液滴法。但是,由于被动采样器不适合高灵敏度和高精度的分析,因此无法监测长期接触中的微量可变有毒物质,为了解决这一缺点,我们采用了Dasgupta的液滴方法。我们使用发光二极管和光纤来分析实验中使用的液滴是圆柱形的腔体。在房间的中央有一根不锈钢管。它被用来交付解决方案。而不锈钢管子的顶端总是让液滴保持滴落。气流从两个相对的进气口进入顶部的圆柱形燃烧室,以获得更对称的液滴周围流动轮廓。然后,液滴收集气体并改变颜色。来自高亮度LED的光照亮了液滴。在直径相反的一侧,透射光通过塑料光纤传导到配备有接口滤光片的光电二极管。参考光电二极管被放置在LED的背面处,以提供双光束参考检测布置。吸光度计算为-log[(ID-ID‘)/(Ir-Lr’)]+Ko,其中ID和Ir分别是探测器和参考光电二极管产生的光电流,ID‘和Ir’是相应的暗电流,Ko是补偿指向液滴的参考光和探测光强度之间的不平等的偏移常数。我们的目的和目标是将最新的微加工技术应用于液滴方法。一个几厘米见方的微芯片就可以采集和分析气体样品。此外,液滴法的微细加工将提供最小的分析装置,可以适用于各种环境样品。
项目成果
期刊论文数量(32)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
伊永隆史、山内孝郎、原千陽: "液滴界面を利用する二酸化窒素のパッシブサンプリング法"分析化学. 47(12). 1107-1110 (1998)
Takashi Inaga、Takao Yamauchi、Chiyo Hara:“使用液滴界面的二氧化氮被动采样方法”分析化学47(12)。
- DOI:
- 发表时间:
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- 影响因子:0
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- 通讯作者:
Korenaga,T.Yamauchi,T.,Hara,C.: "Developmelt of a Passive Sampling/Atmospheric Analysis Device Using Droplet Method and Its Microfabrication"Proc.4th Asian Symposium on Academic Activities for Waste Mamagement. 4. 63-64 (1998)
Korenaga,T.Yamauchi,T.,Hara,C.:“使用液滴法及其微加工的被动采样/大气分析装置的开发”Proc.第四届亚洲废物管理学术活动研讨会。
- DOI:
- 发表时间:
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- 影响因子:0
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- 通讯作者:
T. Korenaga: "Passive Sampler as a Simple Indoor/Outdoor/Personal Air Pollution Monitorin Device"Proceedings of 4th Asian Symposium on Academic Activities for Waste Management. 4. 27-31 (1999)
T. Korenaga:“被动采样器作为简单的室内/室外/个人空气污染监测装置”第四届亚洲废物管理学术活动研讨会论文集。
- DOI:
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- 影响因子:0
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T.Korenaga: "Evaluation of the Passive Sampler Method for NO_2 Measurement in Atmospheric Environment"Proceedings of Co-Operation on International Traceability in Analytical Chemistry. 99. 119 (1999)
T.Korenaga:“大气环境中NO_2测量的被动采样器方法的评估”分析化学国际溯源合作论文集。
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- 影响因子:0
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J.I.Levy,T.Korenaga,他20名: "An International Study on Impact of Residential Nitrogen Dioxide Exposure on Personal Exposure"J.Air and Waste Management. 49(発表予定). (1999)
J.I.Levy、T.Korenaga 等 20 人:“住宅二氧化氮暴露对个人暴露影响的国际研究”J.空气和废物管理(1999 年)。
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- 影响因子:0
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KORENAGA Takashi其他文献
KORENAGA Takashi的其他文献
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{{ truncateString('KORENAGA Takashi', 18)}}的其他基金
Analytical chemistry studies on dynamic analyses of stable isotope analysis towards the isotopomics research foundation
稳定同位素动态分析的分析化学研究为同位素组学研究奠定基础
- 批准号:
23615006 - 财政年份:2011
- 资助金额:
$ 2.56万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
ISOTOPE RATIO MASS SPECTROMETRIC STUDY ON ISOTOPE RATIO ANALYSES OF AMINO ACIDS IN LIFE CYCLE ASSESSMENT FOR THIRTY YEARS FOOD EATINGS
三十年食品生命周期评估中氨基酸同位素比分析的同位素比质谱研究
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$ 2.56万 - 项目类别:
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Downsizing studies on chemical experiments for minimization of environmental loads
减少环境负荷的化学实验小型化研究
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15069207 - 财政年份:2003
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$ 2.56万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas
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我国全球定位系统酸雨监测网络系统开发及现场评价
- 批准号:
13574017 - 财政年份:2001
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$ 2.56万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of droplet surface applied passive monitoring device for low concentration VOC
液滴表面应用的低浓度VOC被动监测装置研制
- 批准号:
10558085 - 财政年份:1998
- 资助金额:
$ 2.56万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Development of a Passive Sampling/Monitoring Device Suitable for Acid Gas in Atmospheric Environment in China and Its Field Evaluation
适用于我国大气环境酸性气体被动采样/监测装置的研制及现场评价
- 批准号:
09041126 - 财政年份:1997
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$ 2.56万 - 项目类别:
Grant-in-Aid for Scientific Research (A).
Development of a Passive Sampler for SOx Monitoring in China
中国 SOx 监测被动采样器的开发
- 批准号:
07044171 - 财政年份:1995
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$ 2.56万 - 项目类别:
Grant-in-Aid for international Scientific Research
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激光二极管和长流通池光度流量分析仪的研制
- 批准号:
07650982 - 财政年份:1995
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$ 2.56万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of a simple monitoring method for acid gas components
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06558079 - 财政年份:1994
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$ 2.56万 - 项目类别:
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Development of Micro Capillary Stream Sensor
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01550577 - 财政年份:1989
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$ 2.56万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
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