Measurement of Hydrogen Sulfide in Beef Cattle Feedlots on the Texas High Plains

Rhoades, Marty B.; Parker, David B.; Dye, Bobby

doi:10.13031/2013.14108

2003, Las Vegas, NV July 27-30, 2003 2003

DOI: 10.13031/2013.14108

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Measurement of Hydrogen Sulfide in Beef Cattle Feedlots on the Texas High Plains

Marty B. Rhoades¹,

David B. Parker²,

Bobby Dye³

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Performance of Single Point Monitors for Measuring Aerial Ammonia and Hydrogen Sulfide

Liang

Xin

Hoff

et al. 2004

2004, Ottawa, Canada August 1 - 4, 2004

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The authors are solely responsible for the content of this technical presentation. The technical presentation does not necessarily reflect the official position of ASAE or CSAE, and its printing and distribution does not constitute an endorsement of views which may be expressed. Technical presentations are not subject to the formal peer review process, therefore, they are not to be presented as refereed publications.

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Performance of Single Point Monitors for Measuring Aerial Ammonia and Hydrogen Sulfide

Liang

Xin

Hoff

et al. 2004

2004, Ottawa, Canada August 1 - 4, 2004

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Performance of Single Point Monitor in Measuring Ammonia and Hydrogen Sulfide Gases

Liang

Xin

Hoff

et al. 2005

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Performance of Single Point Monitors (SPMs) was evaluated for measuring aerial ammonia (NH3, 0 to 30 ppm) and hydrogen sulfide (H2S, 0 to 90 ppb) under laboratory and field conditions. Calibration gas or NH3/H2S-ladden air at various dew-point temperatures (tdp) were introduced simultaneously to the SPMs under evaluation and a chemiluminescence NH3 analyzer or a pulsed-fluorescence H2S analyzer. Coefficient of variation for "as-is" readings among the SPMs, a measurement of unit interchangeability, was up to 15% for H2S and up to 25% for NH3. Linear relationships existed between readings of the SPMs and those of the respective gas analyzer, with the slope increasing with moisture content of the calibration or sample air. Specifically, H2S readings by the SPMs averaged, respectively, 66%, 80%, 87%, and 97% of those by the analyzer for calibration gas at tdp of-22.C (dry), 9.C, 13.C, and 16.C. In comparison, NH3 readings by the SPMs averaged 42%, 86%, 102%, and 178% of those by the analyzer for calibration gas at tdp of-22.C, 8.5.C to 10.C, 12.5.C to 14.C, and 16.C to 17.C, respectively. Correctional equations were developed to compensate for the moisture interference effect on SPM readings of both gases. The corrected SPM readings for H2S measurement with an overall correctional equation generally achieved 90% to 107% agreement with the respective analyzer readings. However, such corrections for NH3 measurements proved not as effective (59% to 90% agreement). To improve the quality of H2S data obtained with SPMs moisture content of the sample air should be concurrently measured and moisture compensation can be made using an overall correctional equation.

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Measurement of Hydrogen Sulfide in Beef Cattle Feedlots on the Texas High Plains

Cited by 2 publications

References 1 publication

Performance of Single Point Monitors for Measuring Aerial Ammonia and Hydrogen Sulfide

Performance of Single Point Monitors for Measuring Aerial Ammonia and Hydrogen Sulfide

Performance of Single Point Monitor in Measuring Ammonia and Hydrogen Sulfide Gases

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