Articles | Volume 12, issue 5
https://doi.org/10.5194/amt-12-2631-2019
https://doi.org/10.5194/amt-12-2631-2019
Research article
 | 
07 May 2019
Research article |  | 07 May 2019

Preparation of primary standard mixtures for atmospheric oxygen measurements with less than 1 µmol mol−1 uncertainty for oxygen molar fractions

Nobuyuki Aoki, Shigeyuki Ishidoya, Nobuhiro Matsumoto, Takuro Watanabe, Takuya Shimosaka, and Shohei Murayama

Related authors

Influence of CO2 adsorption on cylinders and fractionation of CO2 and air during the preparation of a standard mixture
Nobuyuki Aoki, Shigeyuki Ishidoya, Shohei Murayama, and Nobuhiro Matsumoto
Atmos. Meas. Tech., 15, 5969–5983, https://doi.org/10.5194/amt-15-5969-2022,https://doi.org/10.5194/amt-15-5969-2022, 2022
Short summary
Measurement report: Method for evaluating CO2 emission from a cement plant by atmosphere O2 / N2 and CO2 measurements and its applicability to the detection of CO2 capture signals
Shigeyuki Ishidoya, Kazuhiro Tsuboi, Hiroaki Kondo, Kentaro Ishijima, Nobuyuki Aoki, Hidekazu Matsueda, and Kazuyuki Saito
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2022-570,https://doi.org/10.5194/acp-2022-570, 2022
Revised manuscript accepted for ACP
Short summary
Intercomparison of O2 ∕ N2 ratio scales among AIST, NIES, TU, and SIO based on a round-robin exercise using gravimetric standard mixtures
Nobuyuki Aoki, Shigeyuki Ishidoya, Yasunori Tohjima, Shinji Morimoto, Ralph F. Keeling, Adam Cox, Shuichiro Takebayashi, and Shohei Murayama
Atmos. Meas. Tech., 14, 6181–6193, https://doi.org/10.5194/amt-14-6181-2021,https://doi.org/10.5194/amt-14-6181-2021, 2021
Short summary
Secular change in atmospheric Ar∕N2 and its implications for ocean heat uptake and Brewer–Dobson circulation
Shigeyuki Ishidoya, Satoshi Sugawara, Yasunori Tohjima, Daisuke Goto, Kentaro Ishijima, Yosuke Niwa, Nobuyuki Aoki, and Shohei Murayama
Atmos. Chem. Phys., 21, 1357–1373, https://doi.org/10.5194/acp-21-1357-2021,https://doi.org/10.5194/acp-21-1357-2021, 2021
Short summary
O2 : CO2 exchange ratio for net turbulent flux observed in an urban area of Tokyo, Japan, and its application to an evaluation of anthropogenic CO2 emissions
Shigeyuki Ishidoya, Hirofumi Sugawara, Yukio Terao, Naoki Kaneyasu, Nobuyuki Aoki, Kazuhiro Tsuboi, and Hiroaki Kondo
Atmos. Chem. Phys., 20, 5293–5308, https://doi.org/10.5194/acp-20-5293-2020,https://doi.org/10.5194/acp-20-5293-2020, 2020
Short summary

Related subject area

Subject: Gases | Technique: Laboratory Measurement | Topic: Validation and Intercomparisons
Colorimetric derivatization of ambient ammonia (NH3) for detection by long-path absorption photometry
Shasha Tian, Kexin Zu, Huabin Dong, Limin Zeng, Keding Lu, and Qi Chen
Atmos. Meas. Tech., 16, 5525–5535, https://doi.org/10.5194/amt-16-5525-2023,https://doi.org/10.5194/amt-16-5525-2023, 2023
Short summary
Comparison of temperature-dependent calibration methods of an instrument to measure OH and HO2 radicals using laser-induced fluorescence spectroscopy
Frank A. F. Winiberg, William J. Warman, Charlotte A. Brumby, Graham Boustead, Iustinian G. Bejan, Thomas H. Speak, Dwayne E. Heard, Daniel Stone, and Paul W. Seakins
Atmos. Meas. Tech., 16, 4375–4390, https://doi.org/10.5194/amt-16-4375-2023,https://doi.org/10.5194/amt-16-4375-2023, 2023
Short summary
Traceable and continuous flow calibration method for gaseous elemental mercury at low ambient concentrations
Teodor D. Andron, Warren T. Corns, Igor Živković, Saeed W. Ali, Sreekanth Vijayakumaran Nair, and Milena Horvat
Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2023-169,https://doi.org/10.5194/amt-2023-169, 2023
Revised manuscript accepted for AMT
Short summary
Measurements of C10-C15 biogenic volatile organic compounds (BVOCs) with sorbent tubes
Heidi Hellén, Toni Tykkä, Simon Schallhart, Evdokia Stratigou, Thérèse Salameh, and Maitane Iturrate-Garcia
EGUsphere, https://doi.org/10.5194/egusphere-2023-1109,https://doi.org/10.5194/egusphere-2023-1109, 2023
Short summary
Controlled-release testing of the static chamber methodology for direct measurements of methane emissions
James P. Williams, Khalil El Hachem, and Mary Kang
Atmos. Meas. Tech., 16, 3421–3435, https://doi.org/10.5194/amt-16-3421-2023,https://doi.org/10.5194/amt-16-3421-2023, 2023
Short summary

Cited articles

Aoki, N. and Shimosaka, T.: Development of an analytical system based on a paramagnetic oxygen analyzer for atmospheric oxygen variations, Anal. Sci., 34, 487–493, 2018. 
Alink, A. and Van der Veen, A. M.: Uncertainty calculations for the preparation of primary gas mixtures, Metrologia, 37, 641–650, 2000. 
Baertschi, P.: Absolute 18O content of standard mean ocean water, Earth Planet. Sc. Lett., 31, 341–344, 1976. 
Barkan, E. and Luz, B.: High precision measurements of 17O/16O and 18O∕16O ratios in H2O, Rapid Commun. Mass Sp., 19, 3737–3742, 2005. 
Battle, M., Bender, M. L., Tans, P. P., White, J. W. C., Ellis, J. T., Conway, T., and Francey, R. J.: Global carbon sinks and their variability inferred from atmospheric O2 and 13C, Science, 287, 2467–2470, 2000. 
Short summary
Observation of atmospheric O2 requires highly precise standard gas mixtures with uncertainty of less than 1 ppm for the O2 mole fraction or 5 per meg for O2 / N2. The uncertainty had not been achieved due unknown uncertainty factors in mass determination of the filled source gases. We first developed the primary standard mixtures with 1 ppm for the O2 mole fraction or 5 per meg by identifying and reducing the unknown uncertainty factors.