Portable calibrator for NO based on the photolysis of N2O and a combined NO2/NO/O3 source for field calibrations of air pollution monitors

被引：7

作者：

Birks, John W. ^{[1
]}

Turnipseed, Andrew A. ^{[1
]}

Andersen, Peter C. ^{[1
]}

Williford, Craig J. ^{[1
]}

Strunk, Stanley ^{[1
]}

Carpenter, Brian J. ^{[1
]}

Ennis, Christine A. ^{[1
]}

机构：

[1] 2B Technol, 2100 Cent Ave, Boulder, CO 80301 USA

来源：

ATMOSPHERIC MEASUREMENT TECHNIQUES | 2020年 / 13卷 / 02期

关键词：

NITRIC-OXIDE; NITROGEN-DIOXIDE; WATER-VAPOR; OZONE; TEMPERATURE; CHEMISTRY; NM; OH;

D O I：

10.5194/amt-13-1001-2020

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

A highly portable calibration source of nitric oxide (NO) based on the photolysis of nitrous oxide (N2O) supplied by 8 or 16 g disposable cartridges is demonstrated to serve as an accurate and reliable transfer standard for the calibration of NO monitors in the field. The instrument provides output mixing ratios in the range 0-1000 ppb with a precision and accuracy better than the greater of 3 ppb or 3% of the target NO mixing ratio over a wide range of environmental conditions of ambient temperature (8.5-35.0 degrees C), pressure (745-1015 mbar corresponding to 2.7-0.0 km of elevation), and relative humidity (0%-100% RH). The combination of the NO calibration source with a previously described ozone calibration source based on the photolysis of oxygen in air provides a new instrument capable of outputting calibrated mixing ratios of NO, ozone (O-3), and nitrogen dioxide (NO2), where the NO2 is produced by the stoichiometric gas-phase reaction of NO with O-3. The portable NO2/NO/O-3 calibration source requires no external gas cylinders and can be used for calibrations of NO, NO2, and O-3 instruments for mixing ratios up to 1000, 500, and 1000 ppb, respectively. This portable calibrator may serve as a convenient transfer standard for field calibrations of ozone and NOx air pollution monitors.

引用

页码：1001 / 1018

页数：18

共 33 条

[1]

Abman SH, 2013, HANDB EXP PHARMACOL, V218, P257, DOI 10.1007/978-3-642-38664-0_11

[2]

Andersen P. C., 2019, U.S. Patent, Patent No. [US 10,207,927 B2, 10207927]

[3]

[Anonymous], SPRINGER HDB ATOMIC

[4] Evaluated kinetic and photochemical data for atmospheric chemistry:: Volume I -: gas phase reactions of Ox, HOx, NOx and SOx species [J].