A ground-based intercomparison of NO, NOx and NOy measurement techniques. Fehsenfeld, F., C., Dickerson, R., R., Hubler, G., Luke, W., T., Nunnermacker, L., J., Williams, E., J., Roberts, J., M., Calvert, J., G., Curran, C., M., Delany, A., C., Eubank, C., S., Fahey, D., W., Fried, A., Gandrud, B., W., Langford, A., O., Murphy, P., C., Norton, R., B., Pickering, K., E., & Ridley, B., A. Journal of Geophysical Research, 92(D12):14710-14722, 1987.
abstract   bibtex   
At a site near Boulder, Colorado, simultaneous atmospheric measurements were made of NO, NO/sub x/, and NO/sub y/ in a field intercomparison of instruments involving two currently employed techniques of NO/sub x/ and NO/sub y/ measurement. Both NO/sub y/ instruments depended upon the reduction of the NO/sub y/ species of NO with detection by chemiluminescence, but difference catalysts were employed for the reduction. Several times during the intercomparison the response to calibrated samples of reference compounds NO, NO/sub 2/, PAN, HNO/sub 3/, n-propyl nitrate (NPN), and NH/sub 3/ was measured. The two NO instruments agreed on NO mixing ratios that were measured during the daytime hours over a range from the limits of detection to 35 parts ber billion by volume (p.p.b.v.). The two NO/sub y/ instruments gave similar estimates of NO/sub y/ in ambient air over a wide range of mixing ratios (0.4-10 p.p.b.v.). The ferrous sulfate converter used for NO/sub x/ detection showed a significant interference from NPN and PAN.
@article{
 title = {A ground-based intercomparison of NO, NOx and NOy measurement techniques},
 type = {article},
 year = {1987},
 keywords = {300 degC,400 degC,AD 1985 12 16 to 1986 01 05,Air pollution,Air pollution detection and control,Air pollution measurement,Ambient air,Atmospheric composition,Atmospheric techniques,Au catalyst,Boulder,Calibrated samples,Chemiluminescence detection,Colorado,FeSO/sub 4/,Ground-based intercomparison,HNO/sub 3/,Mixing ratios,Mo catalyst,N-propyl nitrate,NH/sub 3/,NO/sub 2/,NO/sub 2/ photolysis,NO/sub x/,NO/sub y/ measurement techniques,NO/sub y/ species reduction,Nitrogen compounds,Peroxyacetyl nitrate,Reference compounds,Simultaneous atmospheric measurements,no,npn,pan},
 pages = {14710-14722},
 volume = {92},
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 notes = {<b>From Duplicate 1 (<i>A ground-based intercomparison of NO, NOx and NOy measurement techniques</i> - Fehsenfeld, F C; Dickerson, R R; Hubler, G; Luke, W T; Nunnermacker, L J; Williams, E J; Roberts, J M; Calvert, J G; Curran, C M; Delany, A C; Eubank, C S; Fahey, D W; Fried, A; Gandrud, B W; Langford, A O; Murphy, P C; Norton, R B; Pickering, K E; Ridley, B A)<br/></b><br/><b>From Duplicate 1 (<i>A ground-based intercomparison of NO, NOx and NOy measurement techniques</i> - Fehsenfeld, F C; Dickerson, R R; Hubler, G; Luke, W T; Nunnermacker, L J; Williams, E J; Roberts, J M; Calvert, J G; Curran, C M; Delany, A C; Eubank, C S; Fahey, D W; Fried, A; Gandrud, B W; Langford, A O; Murphy, P C; Norton, R B; Pickering, K E; Ridley, B A)<br/></b><br/>Article},
 abstract = {At a site near Boulder, Colorado, simultaneous atmospheric measurements were made of NO, NO/sub x/, and NO/sub y/ in a field intercomparison of instruments involving two currently employed techniques of NO/sub x/ and NO/sub y/ measurement. Both NO/sub y/ instruments depended upon the reduction of the NO/sub y/ species of NO with detection by chemiluminescence, but difference catalysts were employed for the reduction. Several times during the intercomparison the response to calibrated samples of reference compounds NO, NO/sub 2/, PAN, HNO/sub 3/, n-propyl nitrate (NPN), and NH/sub 3/ was measured. The two NO instruments agreed on NO mixing ratios that were measured during the daytime hours over a range from the limits of detection to 35 parts ber billion by volume (p.p.b.v.). The two NO/sub y/ instruments gave similar estimates of NO/sub y/ in ambient air over a wide range of mixing ratios (0.4-10 p.p.b.v.). The ferrous sulfate converter used for NO/sub x/ detection showed a significant interference from NPN and PAN.},
 bibtype = {article},
 author = {Fehsenfeld, F C and Dickerson, R R and Hubler, G and Luke, W T and Nunnermacker, L J and Williams, E J and Roberts, J M and Calvert, J G and Curran, C M and Delany, A C and Eubank, C S and Fahey, D W and Fried, A and Gandrud, B W and Langford, A O and Murphy, P C and Norton, R B and Pickering, K E and Ridley, B A},
 journal = {Journal of Geophysical Research},
 number = {D12}
}
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