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Title: Backpack-portable mass spectrometer for measurement of volatile compounds in the environment. Technical report

Abstract

Environmental measurements of volatile pollutants and metabolic gases are preferably made in situ. In situ measurement provides immediate information to the investigator while minimizing disturbance and eliminating the need for sample collection, preservation, and transport. A self-contained mass spectrometer, capable of being carried by one person, has been designed and built for this purpose. The instrument is based on a compact crossed-field analyzer using a high-energy-product magnet and control circuitry optimized for low power consumption using a 12V DC primary power source. An internal, rechargable battery can provide up to several hours of operation in the field. Provision is made for interface, via RS-232, to a compact battery-operated laptop microcomputer. A variety of inlet configurations is possible, the simplest being a probe, containing a small silicone-rubber membrane, which may be inserted into a gas- or water-containing environment of interest.

Authors:
Publication Date:
Research Org.:
Massachusetts Inst. of Tech., Cambridge, MA (USA). Sea Grant Coll. Program
OSTI Identifier:
5951684
Report Number(s):
PB-91-160853/XAB; MITSG-91-4
CNN: NA86AA-D-SG089
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; MASS SPECTROMETERS; DESIGN; ORGANIC COMPOUNDS; MASS SPECTROSCOPY; CHEMICAL ANALYSIS; GAS ANALYSIS; PORTABLE EQUIPMENT; PROGRESS REPORT; VOLATILE MATTER; DOCUMENT TYPES; EQUIPMENT; MATTER; MEASURING INSTRUMENTS; SPECTROMETERS; SPECTROSCOPY; 540120* - Environment, Atmospheric- Chemicals Monitoring & Transport- (1990-); 540320 - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-); 540220 - Environment, Terrestrial- Chemicals Monitoring & Transport- (1990-)

Citation Formats

Hemond, H F. Backpack-portable mass spectrometer for measurement of volatile compounds in the environment. Technical report. United States: N. p., 1991. Web.
Hemond, H F. Backpack-portable mass spectrometer for measurement of volatile compounds in the environment. Technical report. United States.
Hemond, H F. 1991. "Backpack-portable mass spectrometer for measurement of volatile compounds in the environment. Technical report". United States.
@article{osti_5951684,
title = {Backpack-portable mass spectrometer for measurement of volatile compounds in the environment. Technical report},
author = {Hemond, H F},
abstractNote = {Environmental measurements of volatile pollutants and metabolic gases are preferably made in situ. In situ measurement provides immediate information to the investigator while minimizing disturbance and eliminating the need for sample collection, preservation, and transport. A self-contained mass spectrometer, capable of being carried by one person, has been designed and built for this purpose. The instrument is based on a compact crossed-field analyzer using a high-energy-product magnet and control circuitry optimized for low power consumption using a 12V DC primary power source. An internal, rechargable battery can provide up to several hours of operation in the field. Provision is made for interface, via RS-232, to a compact battery-operated laptop microcomputer. A variety of inlet configurations is possible, the simplest being a probe, containing a small silicone-rubber membrane, which may be inserted into a gas- or water-containing environment of interest.},
doi = {},
url = {https://www.osti.gov/biblio/5951684}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}

Technical Report:
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