Skip to content

Precise Measurements of 12CH2D2 by Tunable Infrared Laser Direct Absorption Spectroscopy

Research output: Contribution to journalArticle

Standard

Precise Measurements of 12CH2D2 by Tunable Infrared Laser Direct Absorption Spectroscopy. / Gonzalez, Yenny; Nelson, David D.; Shorter, Joanne H.; McManus, J. Barry; Dyroff, Christoph; Formolo, Michael; Wang, David T.; Western, Colin M.; Ono, Shuhei.

In: Analytical Chemistry, Vol. 91, 23, 30.10.2019, p. 14967-14974.

Research output: Contribution to journalArticle

Harvard

Gonzalez, Y, Nelson, DD, Shorter, JH, McManus, JB, Dyroff, C, Formolo, M, Wang, DT, Western, CM & Ono, S 2019, 'Precise Measurements of 12CH2D2 by Tunable Infrared Laser Direct Absorption Spectroscopy', Analytical Chemistry, vol. 91, 23, pp. 14967-14974. https://doi.org/10.1021/acs.analchem.9b03412

APA

Gonzalez, Y., Nelson, D. D., Shorter, J. H., McManus, J. B., Dyroff, C., Formolo, M., ... Ono, S. (2019). Precise Measurements of 12CH2D2 by Tunable Infrared Laser Direct Absorption Spectroscopy. Analytical Chemistry, 91, 14967-14974. [23]. https://doi.org/10.1021/acs.analchem.9b03412

Vancouver

Gonzalez Y, Nelson DD, Shorter JH, McManus JB, Dyroff C, Formolo M et al. Precise Measurements of 12CH2D2 by Tunable Infrared Laser Direct Absorption Spectroscopy. Analytical Chemistry. 2019 Oct 30;91:14967-14974. 23. https://doi.org/10.1021/acs.analchem.9b03412

Author

Gonzalez, Yenny ; Nelson, David D. ; Shorter, Joanne H. ; McManus, J. Barry ; Dyroff, Christoph ; Formolo, Michael ; Wang, David T. ; Western, Colin M. ; Ono, Shuhei. / Precise Measurements of 12CH2D2 by Tunable Infrared Laser Direct Absorption Spectroscopy. In: Analytical Chemistry. 2019 ; Vol. 91. pp. 14967-14974.

Bibtex

@article{8c9a78c844cb42b68980a3ce6a6db7b7,
title = "Precise Measurements of 12CH2D2 by Tunable Infrared Laser Direct Absorption Spectroscopy",
abstract = "We present precise measurements of doubly deuterated methane (12CH2D2) in natural methane samples using tunable infrared laser direct absorption spectroscopy (TILDAS). Using a 413 m optical path length astigmatic Herriott cell and two quantum cascade lasers (QCLs) scanning the spectral regions of 1090.46 ± 0.1 and 1200.23 ± 0.1 cm-1, the instrument simultaneously measures the five main isotopologues of methane. The ratios 13CH3D/12CH4 and 12CH2D2/12CH4 are measured at 0.01‰ and 0.5‰ (1σ) instrumental precision, respectively. The instrumental accuracy was assessed by measuring a series of methane gases with a range of δ13C and δD values but with the abundances of all isotopologues driven to thermal equilibrium at 250 °C. The estimated accuracy of Δ12CH2D2 is 1‰ (1σ) on the basis of the results of the heated methane samples. This new TILDAS instrument provides a simple and rapid technique to explore the sources of methane in the environment.",
author = "Yenny Gonzalez and Nelson, {David D.} and Shorter, {Joanne H.} and McManus, {J. Barry} and Christoph Dyroff and Michael Formolo and Wang, {David T.} and Western, {Colin M.} and Shuhei Ono",
year = "2019",
month = "10",
day = "30",
doi = "10.1021/acs.analchem.9b03412",
language = "English",
volume = "91",
pages = "14967--14974",
journal = "Analytical Chemistry",
issn = "0003-2700",
publisher = "American Chemical Society",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Precise Measurements of 12CH2D2 by Tunable Infrared Laser Direct Absorption Spectroscopy

AU - Gonzalez, Yenny

AU - Nelson, David D.

AU - Shorter, Joanne H.

AU - McManus, J. Barry

AU - Dyroff, Christoph

AU - Formolo, Michael

AU - Wang, David T.

AU - Western, Colin M.

AU - Ono, Shuhei

PY - 2019/10/30

Y1 - 2019/10/30

N2 - We present precise measurements of doubly deuterated methane (12CH2D2) in natural methane samples using tunable infrared laser direct absorption spectroscopy (TILDAS). Using a 413 m optical path length astigmatic Herriott cell and two quantum cascade lasers (QCLs) scanning the spectral regions of 1090.46 ± 0.1 and 1200.23 ± 0.1 cm-1, the instrument simultaneously measures the five main isotopologues of methane. The ratios 13CH3D/12CH4 and 12CH2D2/12CH4 are measured at 0.01‰ and 0.5‰ (1σ) instrumental precision, respectively. The instrumental accuracy was assessed by measuring a series of methane gases with a range of δ13C and δD values but with the abundances of all isotopologues driven to thermal equilibrium at 250 °C. The estimated accuracy of Δ12CH2D2 is 1‰ (1σ) on the basis of the results of the heated methane samples. This new TILDAS instrument provides a simple and rapid technique to explore the sources of methane in the environment.

AB - We present precise measurements of doubly deuterated methane (12CH2D2) in natural methane samples using tunable infrared laser direct absorption spectroscopy (TILDAS). Using a 413 m optical path length astigmatic Herriott cell and two quantum cascade lasers (QCLs) scanning the spectral regions of 1090.46 ± 0.1 and 1200.23 ± 0.1 cm-1, the instrument simultaneously measures the five main isotopologues of methane. The ratios 13CH3D/12CH4 and 12CH2D2/12CH4 are measured at 0.01‰ and 0.5‰ (1σ) instrumental precision, respectively. The instrumental accuracy was assessed by measuring a series of methane gases with a range of δ13C and δD values but with the abundances of all isotopologues driven to thermal equilibrium at 250 °C. The estimated accuracy of Δ12CH2D2 is 1‰ (1σ) on the basis of the results of the heated methane samples. This new TILDAS instrument provides a simple and rapid technique to explore the sources of methane in the environment.

UR - http://www.scopus.com/inward/record.url?scp=85075155190&partnerID=8YFLogxK

U2 - 10.1021/acs.analchem.9b03412

DO - 10.1021/acs.analchem.9b03412

M3 - Article

C2 - 31663335

VL - 91

SP - 14967

EP - 14974

JO - Analytical Chemistry

JF - Analytical Chemistry

SN - 0003-2700

M1 - 23

ER -