Microanalytical System for Indoor VOC Monitoring
Microanalytical System for Indoor VOC Monitoring
批准号:
6475355
负责人:
EDWARD T ZELLERS
金额:
$29.6万
依托单位国家:
美国
项目类别:
财政年份:
1998
资助国家:
美国
项目状态:
已结题
起止时间:
1998-09-30 至 2005-05-31
中文摘要
描述:继续研究a的开发和实施
英文摘要
DESCRIPTION: Continued research on the development and implementation of a
high-performance micro analytical system capable of on-site speciated analysis
of volatile and semi-volatile organic compounds (VOCs and SVOCs) encountered as
complex mixtures at low-/sub-part-per-billion concentrations in non-industrial
indoor working environments is proposed. Application to other occupational
health monitoring needs will also be addressed. During the first finding cycle
of this project, we succeeded in producing and characterizing the performance
of a notebook-computer-sized fieldable instrument that employs
preconcentration, thermal desorption, high-speed tunable separation, and
microsensor-array detection. Detection limits ranging from 0.06 - 17 ppb have
been achieved for the components of mixtures of >30 VOCs/SVOCs spanning a
10,000-fold range of vapor pressures captured from l-L air samples. Response
patterns combined with chromatographic retention times have been used for vapor
identification. Analytical cycle times of < 10 min are possible. Meeting these
goals has also led to advances in adsorbent-preconcentrator design, dual-column
pressure/temperature-modulated separations using air as carrier gas, and vapor
detection, recognition, and quantification with ultra-miniature arrays of
polymer-coated surface-acoustic-wave (SAW) microsensors. Here, we propose to
field test this first-generation instrument in office buildings and to explore
its application for breath analysis and for industrial air monitoring where
vapor concentrations tend to be higher. Development of a second-generation
microanalytical system with the following refinements/additions is also
proposed: a wireless interface to permit unattended operation; an on-board
vapor generator for automatic field calibration and system diagnostics; use of
an alternative sensor technology with greater sensitivity to reduce sample
volumes and/or detection limits; addition of a focusing element to reduce inlet
bandwidths and use of alternative separation strategies to improve
chromatographic resolution/versatility and reduce analysis time; and
implementation of Si-micromachined components to reduce size and power.
Laboratory and field testing of this second-generation instrument will then be
performed. This system represents a significant advancement over the current
state-of-the-art in monitoring instrumentation for complex vapor mixtures,
obviating the need for conventional sorbent-tube/GC-MS methods for routine
indoor air (and other) monitoring. The versatility of this instrument will
facilitate the assessment of exposure distributions and the implementation of
rational intervention strategies related to indoor air quality and other
occupational health problems.
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Wearable Microsystem for Continuous Multi-Vapor Monitoring
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批准号:9098872
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项目类别:
-
资助金额:$13.71万
-
财政年份:2013
-
负责人:EDWARD T ZELLERS
-
依托单位:
Wearable Microsystem for Continuous Multi-Vapor Monitoring
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批准号:8737263
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项目类别:
-
资助金额:$38.6万
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财政年份:2013
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负责人:EDWARD T ZELLERS
-
依托单位:
Wearable Microsystem for Continuous Multi-Vapor Monitoring
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批准号:8870302
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项目类别:
-
资助金额:$32.06万
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财政年份:2013
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负责人:EDWARD T ZELLERS
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依托单位:
Industrial Hygiene
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批准号:7005071
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项目类别:
-
资助金额:$19.53万
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财政年份:2005
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负责人:EDWARD T ZELLERS
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依托单位:
Microanalytical System for Indoor VOC Monitoring
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批准号:6759276
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项目类别:
-
资助金额:$24.1万
-
财政年份:1998
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负责人:EDWARD T ZELLERS
-
依托单位:
Microanalytical System for Indoor VOC Monitoring
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批准号:6624493
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项目类别:
-
资助金额:$24.1万
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财政年份:1998
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负责人:EDWARD T ZELLERS
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依托单位:
MICROANALYTICAL SYSTEM FOR INDOOR VOC MONITORING
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批准号:6344516
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项目类别:
-
资助金额:$17.94万
-
财政年份:1998
-
负责人:EDWARD T ZELLERS
-
依托单位:
MICROANALYTICAL SYSTEM FOR INDOOR VOC MONITORING
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批准号:2860941
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项目类别:
-
资助金额:$26.79万
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财政年份:1998
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负责人:EDWARD T ZELLERS
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依托单位:
MICROANALYTICAL SYSTEM FOR INDOOR VOC MONITORING
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批准号:6141419
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项目类别:
-
资助金额:$28.4万
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财政年份:1998
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负责人:EDWARD T ZELLERS
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依托单位:
SMALL, SELECTIVE MULTIVAPOR MONITORING INSTRUMENT
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批准号:2277962
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项目类别:
-
资助金额:$14.31万
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财政年份:1995
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负责人:EDWARD T ZELLERS
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依托单位:
SMALL, SELECTIVE MULTIVAPOR MONITORING INSTRUMENT
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批准号:2039502
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项目类别:
-
资助金额:$12.32万
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财政年份:1995
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负责人:EDWARD T ZELLERS
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依托单位:
SMALL, SELECTIVE MULTIVAPOR MONITORING INSTRUMENT
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批准号:2728050
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项目类别:
-
资助金额:$4.46万
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财政年份:1995
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负责人:EDWARD T ZELLERS
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依托单位:
PREDICTIVE MODELS OF SOLVENT PERMEATION THROUGH CPC
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批准号:2277673
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项目类别:
-
资助金额:$11.26万
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财政年份:1992
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负责人:EDWARD T ZELLERS
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依托单位:
PREDICTIVE MODELS OF SOLVENT PERMEATION THROUGH CPC
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批准号:3421070
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项目类别:
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资助金额:$11.65万
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财政年份:1992
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负责人:EDWARD T ZELLERS
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依托单位:
PREDICTIVE MODELS OF SOLVENT PERMEATION THROUGH CPC
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批准号:2277674
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项目类别:
-
资助金额:$11.68万
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财政年份:1992
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负责人:EDWARD T ZELLERS
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依托单位:
GLOVE PERMEATION BY SEMICONDUCTOR PROCESSING MIXTURES
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批准号:3431205
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项目类别:
-
资助金额:$2.38万
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财政年份:1989
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负责人:EDWARD T ZELLERS
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依托单位:
MICROSENSOR ARRAY FOR IDENTIFICATION OF ORGANIC VAPORS
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批准号:3068965
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项目类别:
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资助金额:$3.21万
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财政年份:1989
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负责人:EDWARD T ZELLERS
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依托单位:
SELECTIVE REAL-TIME DETECTION OF OLEFIN GASES AND VAPORS
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批准号:3420794
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项目类别:
-
资助金额:$9.55万
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财政年份:1989
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负责人:EDWARD T ZELLERS
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依托单位:
MICROSENSOR ARRAY FOR IDENTIFICATION OF ORGANIC VAPORS
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批准号:3068964
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项目类别:
-
资助金额:$3.16万
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财政年份:1989
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负责人:EDWARD T ZELLERS
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依托单位:
MICROSENSOR ARRAY FOR IDENTIFICATION OF ORGANIC VAPORS
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批准号:3068966
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项目类别:
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资助金额:$2.73万
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财政年份:1989
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负责人:EDWARD T ZELLERS
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依托单位: