Process Monitor Mass Spectrometer

Air Pollution

“…A number of investigators have employed mass spectrometry for analysis of automobile exhaust gases (49,68,110,292,336,368,462,463). Walker and O'Hara (463) among others have described procedures for both individual and continuous estimations.…”

Review - Automatic Operations

“…Miller et al ( 311) used a portable mass spectrometer which recorded the concentration of five gases in a mixture every 20 seconds wdth 1 % accuracy. The use of mass spectrometers in continuous process control has been described by Morgan et al (318), Reinders (358), Robinson (363), and Walker et al (448). Buckley et al (51) described the use of a portable mass spectrometer for continuous alveolar gas analysis.…”

Comparison of total vaporisation and dynamic headspace techniques combined with direct mass spectrometric detection for the on-line analysis of liquid process streams

“…A range of analytical instrumentation has been employed for on-line analysis applications in the chemical industry, 1 including gas chromatography 3 and infrared spectroscopy. 4 Mass spectrometry has been employed in the iron making, 5 semiconductor 6,7 and chemical 8,9 industries since the 1950s 10,11 for the analysis of gaseous process streams or environmental monitoring. Only in the previous three decades have the benefits 12 that the technique can provide been fully realised, which has led to an increase in the number of applications.…”