Determination method of trace amount of arsine and phosphine in ethylene and propylene based on gas chromatography-mass spectrometry
"A method for simultaneous determination of trace amount of arsine and phosphine in ethylene and propylene was developed based on gas chromatography-mass spectrometry, and the limit of detection, linear range, recovery rate and repeatabi-lity of the method were investigated. The results showed...
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| Format: | Article |
| Language: | zho |
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Editorial Office of China Synthetic Rubber Industry
2025-01-01
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| Series: | Hecheng xiangjiao gongye |
| Subjects: | |
| Online Access: | http://hcxjgy.paperopen.com/oa/DArticle.aspx?type=view&id=202501006 |
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| Summary: | "A method for simultaneous determination of trace amount of arsine and phosphine in ethylene and propylene was developed based on gas chromatography-mass spectrometry, and the limit of detection, linear range, recovery rate and repeatabi-lity of the method were investigated. The results showed that the limit of detection of this method for arsine could be as low as 0.682 μL/m3 and the correlation coefficient between peak area and volume concentration was 0.999 5 within the volume concentration range of 4.955-99.100 μL/m3, the deviations between the test value and the actual value of samples with different concentrations were all within 7% and the relative standard deviation of the three measurement results was 1.14%.The limit of detection of this method for phosphine could be as low as
0.677 μL/m3 and the correlation coefficient between peak area and volume concentration was 0.999 7 within the volume concentration range of 5.000-100.000 μL/m3, the deviations between the test value and the actual value of samples with different concentrations were all within 10% and the relative standard deviation of the three measurement results was 1.20%. The chromatographic column system used in this method was simple, the limit of detection was low and the determination process was convenient and fast, and this method could provide a new analytical means for the quality monitoring of polymerization-grade ethylene and propylene monomers."
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| ISSN: | 1000-1255 |