单光子电离质谱用于二噁英前生体检测
垃圾焚烧处理是二噁英的主要产生源之一,在二噁英的形成阶段会先形成氯苯、氯酚、多环芳烃等二噁英类前生体。这些前生体浓度较高,并且与二噁英类毒性当量存在密切关联。对前生体的在线检测研究已成为主要研究方向之一。本研究利用自制的纳秒真空紫外电离-飞行时间质谱仪,发展了一种快速测量气相条件下氯苯、多氯酚、萘等方法,并通过标准样测试对该方法进行了实验评估。对于氯苯标准样,在5~100μg/L范围内,用本方法获得的母体离子信号强度与浓度呈现良好的线性关系。...
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| Published in | 分析化学 Vol. 42; no. 2; pp. 173 - 178 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国科学院大连化学物理研究所,大连,1160232%辽宁师范大学,大连,116029
2014
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-3820 |
| DOI | 10.3724/SP.J.1096.2014.30331 |
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| Abstract | 垃圾焚烧处理是二噁英的主要产生源之一,在二噁英的形成阶段会先形成氯苯、氯酚、多环芳烃等二噁英类前生体。这些前生体浓度较高,并且与二噁英类毒性当量存在密切关联。对前生体的在线检测研究已成为主要研究方向之一。本研究利用自制的纳秒真空紫外电离-飞行时间质谱仪,发展了一种快速测量气相条件下氯苯、多氯酚、萘等方法,并通过标准样测试对该方法进行了实验评估。对于氯苯标准样,在5~100μg/L范围内,用本方法获得的母体离子信号强度与浓度呈现良好的线性关系。 |
|---|---|
| AbstractList | 垃圾焚烧处理是二噁英的主要产生源之一,在二噁英的形成阶段会先形成氯苯、氯酚、多环芳烃等二噁英类前生体.这些前生体浓度较高,并且与二噁英类毒性当量存在密切关联.对前生体的在线检测研究已成为主要研究方向之一.本研究利用自制的纳秒真空紫外电离-飞行时间质谱仪,发展了一种快速测量气相条件下氯苯、多氯酚、萘等方法,并通过标准样测试对该方法进行了实验评估.对于氯苯标准样,在5～100 μg/L范围内,用本方法获得的母体离子信号强度与浓度呈现良好的线性关系. 垃圾焚烧处理是二噁英的主要产生源之一,在二噁英的形成阶段会先形成氯苯、氯酚、多环芳烃等二噁英类前生体。这些前生体浓度较高,并且与二噁英类毒性当量存在密切关联。对前生体的在线检测研究已成为主要研究方向之一。本研究利用自制的纳秒真空紫外电离-飞行时间质谱仪,发展了一种快速测量气相条件下氯苯、多氯酚、萘等方法,并通过标准样测试对该方法进行了实验评估。对于氯苯标准样,在5~100μg/L范围内,用本方法获得的母体离子信号强度与浓度呈现良好的线性关系。 |
| Author | 刘本康 陈亮 王艳秋 宋哲 王利 |
| AuthorAffiliation | 中国科学院大连化学物理研究所,大连116023 辽宁师范大学,大连116029 |
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| Author_FL | CHEN Liang LIU Ben-Kang WANG Yan-Qiu SONG Zhe WANG Li |
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| DOI | 10.3724/SP.J.1096.2014.30331 |
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| DocumentTitleAlternate | Vacuum Ultraviolet Photon Ionization Mass Spectrometry for Detection of Dioxin Precursors |
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| EndPage | 178 |
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| Keywords | Dioxin precursors Single photon ionization 真空紫外 单光子电离 Vacuum ultraviolet 二噁英前生体 Time-of-flight mass spectrometry 飞行时间质谱 |
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| Notes | Waste incineration has been considered as a main source of dioxins. During the generation of dioxins, dioxin precursors, such as polychlorinated benzenes （PCBz）, polychlorinated phenols （PCPh）, polycyclic aromatic hydrocarbon （PAHs）, polychlorinated biphenyls （PCBs） etc., have been proved to be produced with much higher concentrations than dioxins, which had been determined to be closely related to dioxin toxic equivalents. Therefore, online monitoring of these precursor compounds has been becoming one of the main research directions of dioxin detection. In this paper, we reported our attempt on developing a new method for online detection of these dioxin precursors in gas phase, by nanosecond vacuum ultraviolet single photon ionization technique, combined with time-of-flight mass spectrometer. This setup was evaluated by monitoring chlorobenzene, polychlorinated phenols and naphthalene in gas phase. In the range of 5-100μg/L, parent ion signal intensity of chlorobenzene exhibits linear dependence on the conc |
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| PublicationTitle | 分析化学 |
| PublicationTitleAlternate | Chinese Journal of Analytical Chemistry |
| PublicationTitle_FL | Chinese Journal of Analytical Chemistry |
| PublicationYear | 2014 |
| Publisher | 中国科学院大连化学物理研究所,大连,1160232%辽宁师范大学,大连,116029 |
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| SubjectTerms | 二噁英前生体 单光子电离 真空紫外 飞行时间质谱 |
| Title | 单光子电离质谱用于二噁英前生体检测 |
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