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

基本信息

  • 批准号:
    10558085
  • 负责人:
  • 金额:
    $ 6.14万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B).
  • 财政年份:
    1998
  • 资助国家:
    日本
  • 起止时间:
    1998 至 2000
  • 项目状态:
    已结题

项目摘要

We developed the new environmental monitoring instrument of high performance passive sampling by the droplet method based on the research reports given by Dasgupta, et al. We also improved the instrument for producing large droplets. The pumping method of gas-absorbed solution needed high accuracy at very low flow rates for absorption on a flow droplet surface. We used a plunger pump for the absorbed solution and made the stable continuous flow.On the basic experiment for volatile organic compounds (VOC), especially HCHO, passive sampling instruments, constructed instruments were carried out in the same wind tunnel experiment for nitrogen dioxide, and optimized for sampling conditions, for example, a HCHO-absorbed solution flow rate, droplet diameter, temperature, moisture, wind velocity, and so on.A new, simple, sensitive and in-field fluorimetric method for the determination of formaldehyde is proposed. The reaction of formaldehyde with hydralazine in acidic medium, heating on a boiling water-bath for 25 min, produces s-triazolo [3,4-α] phthalazine (Tri-P). the fluorescence intensity of the product formed (Tei-P) was determined at λ em=389 nm with λ ex=236 nm. The fluorescence intensity is linear over a formaldehyde concentration range of 1.2-33.0 μ gl-1. The proposed method was applied successfully to the determination of formaldehyde sampled from the atmosphere using the liquid droplet technique. Formaldehyde vapor in a wind tunnel and that in the droplet. The detection limit for formaldehyde was 2.0 μ gl-1 with RSDs varying from 3 to 12% in ambient air, using a droplet correction solution (boric acid and hydralazine). The effect of interfering substances on the determination shows that most cations and anions did not interfere. The results obtained were satisfactory compared with a reference method.
我们在Dasgupta等人研究的基础上,研制了一种新型的高性能被动式液滴采样环境监测仪器,并对大液滴产生装置进行了改进。气体吸收溶液的泵送方法需要在非常低的流速下具有高精度,以便在流动液滴表面上吸收。在挥发性有机化合物(VOC)特别是甲醛(HCHO)的基础实验上,采用被动式采样装置,在同一风洞中进行了二氧化氮(NO2)的实验,并对采样条件进行了优化,如甲醛吸收液流量、液滴直径、温度、湿度、风速、提出了一种新的、简便、灵敏、现场测定甲醛的荧光分析方法。在酸性介质中,甲醛与肼苯哒嗪在沸水浴中反应25 min,生成均三唑并[3,4-α]酞嗪(Tri-P)。在λ em=389 nm和λ ex=236 nm处测定所形成的产物(Tei-P)的荧光强度。甲醛浓度在1.2-33.0 μ gl ~(-1)范围内与荧光强度呈线性关系。该方法已成功地应用于液滴法测定大气中的甲醛。风洞中的甲醛蒸气和液滴中的甲醛蒸气。使用液滴校正溶液(硼酸和肼苯哒嗪),甲醛的检测限为2.0 μ gl-1,环境空气中的RSD为3 - 12%。干扰物质对测定的影响表明,大多数阳离子和阴离子不产生干扰。与参考方法相比,所得结果令人满意。

项目成果

期刊论文数量(100)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
J.D.Spengler: "Impact of Residential Nitrogen Dioxide Exposure on Personal Exposure"An International Study J.Air and Waste Management. 49. 1-20 (1999)
J.D.Spengler:“住宅二氧化氮暴露对个人暴露的影响”国际研究 J.空气和废物管理。
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    0
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  • 通讯作者:
Y.Yang, X.Zhang, and T.Korenaga: "Determination of Sulfur Dioxide in Southeast Asia by Flow Injection Analysis with On-Line Reaction Column"Analytical Sciences. 13(S). 397-400 (1997)
Y.Yang、X.Zhang 和 T.Korenaga:“通过在线反应柱流动注射分析测定东南亚的二氧化硫”分析科学。
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    0
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T.Odake,J.Zheng,T.Takabayashi,T.Korenaga,T.Kitamori: "DNA Separation and Detection Using Micro Separation Media With Laser-Assisted Microscopic Detection"Proceedings of Internetional Symposium on Capillary Chromatography. 22. LP009 (1999)
T.Odake、J.Zheng、T.Takabayashi、T.Korenaga、T.Kitamori:“利用激光辅助显微检测的微分离介质进行 DNA 分离和检测”毛细管色谱国际研讨会论文集。
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  • 期刊:
  • 影响因子:
    0
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T.Korenaga: "Development of Passive Technology for Simultaneous Sulfur Dioxide and Nitrogen Dioxide Monitoring"Air Quality and Atmospheric Science. 6. 40-46 (1999)
T.Korenaga:“同时二氧化硫和二氧化氮监测的被动技术的发展”空气质量和大气科学。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
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  • 通讯作者:
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)。
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    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:
    $ 6.14万
  • 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
  • 批准号:
    19310025
  • 财政年份:
    2007
  • 资助金额:
    $ 6.14万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
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
  • 批准号:
    15069207
  • 财政年份:
    2003
  • 资助金额:
    $ 6.14万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas
DEVELOPMENT OF ACID RAIN MONITORING NETWORK SYSTEM USING GLOBAL POSITIONING SYSTEM AND ITS FIELD EVALUATION IN CHINA
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
  • 资助金额:
    $ 6.14万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
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
  • 批准号:
    10650797
  • 财政年份:
    1998
  • 资助金额:
    $ 6.14万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
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
  • 资助金额:
    $ 6.14万
  • 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
  • 资助金额:
    $ 6.14万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
Development of Photometric Flow Analyzer with Laser Diode and Long Flow Cell
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
  • 资助金额:
    $ 6.14万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of a simple monitoring method for acid gas components
酸性气体成分简易监测方法的开发
  • 批准号:
    06558079
  • 财政年份:
    1994
  • 资助金额:
    $ 6.14万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research (B)
Development of Micro Capillary Stream Sensor
微毛细管流传感器的研制
  • 批准号:
    01550577
  • 财政年份:
    1989
  • 资助金额:
    $ 6.14万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

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Soil and sediment sorption of cationic surfactants investigated with equilibrium passive sampling methods
采用平衡被动采样方法研究土壤和沉积物对阳离子表面活性剂的吸附
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用于废水中 SARS-CoV-2 检测的新型被动采样方法的开发和评估
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Development of Passive Sampling Tools for Per-and Polyfluoroalkyl Substances
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Development of a passive sampling methodology for measurement of time-averaged nutrient concentration in stormwater flow and receiving waters
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开发被动采样方法来测量雨水流和受纳水中的时间平均营养物浓度
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