Particle beam LC/MS screening of polar compounds of contaminated ground water samples from a former gas plant
Particle beam LC/MS screening of polar compounds of contaminated ground water samples from a former gas plant
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使用粒子束 LC/MS 筛选前天然气厂受污染地下水样品中的极性化合物
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
F. Frimmel
中科院分区：
文献类型：
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作者：
B. Edler;C. Zwiener;F. Frimmel
摘要商业粒子束界面与单个四极质谱计耦合，已用于对来自前天然气厂的高污染水样进行非靶标筛选。在MS界面不损失任何效率的情况下，已使用高效液相色谱系统来分离具有高百分比水梯度的亲水性化合物。总离子流色谱显示地下水污染负荷较高。全扫描电喷雾质谱用于鉴定未知化合物，可归属于杂环芳香族化合物的氧化产物，煤焦油中的一些已知成分。通过与相应标准的比较，确认了6(5H)-菲咯烷酮的鉴定。讨论了根据异喹诺酮及其甲基衍生物的EI质谱图对其进行明确鉴定的困难。
Abstract A commercial particle beam interface coupled to a single quadrupole mass spectrometer has been used for a nontarget screening of highly contaminated water samples from a former gas plant. A liquid chromatographic system has been used to separate hydrophilic compounds with a high percentage water gradient without any loss of efficiency in the MS interface. The ground water showed a high pollution burden in the total ion current chromatogram. Full scan EI mass spectra have been obtained for identification of unknown compounds which could be assigned to oxidation products of heterocyclic aromatic compounds, some known constituents of coal tar. The identification of 6(5H)-phenanthridinone has been confirmed by comparison with a corresponding standard. The difficulties of an unequivocal identification of isoquinolinone and methyl derivatives of quinolinone based on their EI mass spectra are discussed.