1995
DOI: 10.1021/es00008a015
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Online Coupled LC-GC-ITD/MS for the Identification of Alkylated, Oxygenated, and Nitrated Polycyclic Aromatic Compounds in Urban Air Particulate Extracts

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Cited by 38 publications
(15 citation statements)
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“…14,15 The interface unit used to couple the flow system to the chromatograph is the simplest of the reported devices for this purpose and requires no alteration of the instrument nor does it require on-column injection. 19 …”
Section: Discussionmentioning
confidence: 99%
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“…14,15 The interface unit used to couple the flow system to the chromatograph is the simplest of the reported devices for this purpose and requires no alteration of the instrument nor does it require on-column injection. 19 …”
Section: Discussionmentioning
confidence: 99%
“…Thus, a method using charge-exchange ionization in conjunction with membrane-introduction mass spectrometry was proposed for the determination of polar, volatile organic compounds and semi-volatile compounds in air. 18 Lewis et al 19 have developed an instrument for identifying oxygenated, nitrated and alkylated polycyclic aromatic compounds adsorbed on to urban air particulates; the instrument was configured to use an on-column LC-GC interface with an ion trap detector mass spectrometer. However, the extraction of organic compounds from air samples (collected on a microfiber filter) requires supercritical fluid extraction with toluene-modified CO 2 and evaporation of the extract in order to change the organic phase so as to be compatible with normal-phase LC.…”
mentioning
confidence: 99%
“…[61][62][63][64][65][66][67][68] A cromatografia gasosa e a cromatografia líquida de alta eficiência em combinação com a espectrometria de massas, abreviadas respectivamente como CG-EM e CLAE-EM, continuam sendo as técnicas predominantes para a separação, identificação e quantificação de poluentes orgânicos, metabólitos e produtos de transformação no ambiente. 69 As técnicas analíticas acopladas (CG-EM, CLAE-EM) têm a capacidade de gerar extensa quantidade de informações quando aplicadas a misturas complexas de contaminantes ambientais. 69 …”
Section: Métodos De Quantificação De Quinonasunclassified
“…69 As técnicas analíticas acopladas (CG-EM, CLAE-EM) têm a capacidade de gerar extensa quantidade de informações quando aplicadas a misturas complexas de contaminantes ambientais. 69 …”
Section: Métodos De Quantificação De Quinonasunclassified
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