A New Method for the Simultaneous Determination of the Amount of N2O Evolved from Soil and its N-15 Abundance

Autor:	Naoto Owa, Kikuo Kumazawa, Toshifumi Murakami
Rok vydání:	1986
Předmět:	Denitrification Thermal conductivity detector Analytical chemistry Soil Science chemistry.chemical_element Plant Science Nitrous oxide Liquid nitrogen Nitrogen law.invention chemistry.chemical_compound chemistry law Gas chromatography Gas-filled tube Glass tube
Zdroj:	Soil Science and Plant Nutrition. 32:503-510
ISSN:	1747-0765 0038-0768
DOI:	10.1080/00380768.1986.10557533
Popis:	A new method for the simultaneous determination of the amount of N2O evolved from soil and its N-15 abundance was developed. Gases evolved from soil were collected in a 1-liter Tedlar® bag using a special gas collecting device. Nitrous oxide (N2O) in the collected sample gases was concentrated in the glass tube trap with liquid nitrogen. The collected N2O was released and measured by thermal conductivity detector gas chromatography. By this system, a quantity of 0.1 μg N/liter sample could be determined for N2O. The N2O separated by gas chromatography was introduced into a discharge tube and subjected to the N-15 analysis by emission spectrometry. By this system 15N atom % of 0.3 μg N2O-N/1 liter sample could be measured.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9ce8904e347772bff8a58702c6aa365e https://doi.org/10.1080/00380768.1986.10557533 Zobrazit plný text záznamu