Determination of ultra-trace amount of halo-hydrocarbon in nitrogen by atmospheric pressure ionization mass spectrometry
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作者:
Bi, Zhe
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Natl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R ChinaNatl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R China
Bi, Zhe
[1
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Zhou, Zeyi
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Natl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R ChinaNatl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R China
Zhou, Zeyi
[1
]
Liu, Zixuan
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机构:
Beijing Ctr Phys & Chem Anal, Beijing 100089, Peoples R ChinaNatl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R China
Liu, Zixuan
[2
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Ma, Shuli
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Natl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R ChinaNatl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R China
Ma, Shuli
[1
]
Ma, Haomiao
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Natl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R ChinaNatl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R China
Ma, Haomiao
[1
]
Wang, Zhen
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Natl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R ChinaNatl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R China
Wang, Zhen
[1
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Huang, Peng
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Natl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R ChinaNatl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R China
Huang, Peng
[1
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Wang, Man
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Natl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R ChinaNatl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R China
Wang, Man
[1
]
机构:
[1] Natl Inst Metrol, 18 Bei San Huan Dong Lu, Beijing 100029, Peoples R China
[2] Beijing Ctr Phys & Chem Anal, Beijing 100089, Peoples R China
R134a;
standard gas mixture;
atmospheric pressure ionization;
electron impact ionization;
D O I:
暂无
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
The monitoring of halo hydrocarbons such as R134a in atmosphere has attract great attention due to its strong global warming effect. In this study, on-line atmospheric pressure ionization (API) and electron impact ionization (EI) mass spectroscopy was used to measure R134a at ambient level (ppt, 10(-12) mol/mol). A dilution system was developed to test the linearity of API/EI MS. Results showed that the sensitivity of API MS was much higher than that of EI MS. A good linearity could be obtained at the range of 10-75 ppt for API MS. The API MS could directly measure R134a at ambient level without preconcentration devices.