MARC details
| 000 -LEADER |
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| fixed length control field |
02349nam a2200289Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625140609.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-9273 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Development of a sequential supercritical fluid extraction method for the analysis of nitrated and oxygenated derivatives of polycyclic aromatic hydrocarbons in urban aerosols |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Journal of Chromatography A, 1010(2), p.141-151, 2003 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
A two-step supercritical fluid extraction (SFE)method has been developed for the analysis of oxygenated and nitrated polycyclic aromatic hydrocarbons (oxy- and nitro-PAHs, respectively)present in urban aerosol samples. The proposed SFE procedure first involves an extraction step using pure CO in order to remove the less polar compounds from the matrix and 2 a second consecutive step using toluene-modified CO . The oxy- and nitro-PAHs are obtained in the second step. Parameters 2 affecting both collection efficiencies and the selective extraction of oxy- and nitro-PAHs in the second SFE step were optimised. Analysis of the extracts was performed using gas chromatography with electron-capture detection and coupled to mass spectrometry. The proposed SFE method was compared with a conventional extraction technique such as onication and good agreement in the results was obtained. Nevertheless, clean up of sonication extracts was needed, whereas no purification was necessary for SFE extracts. The SFE method was applied to the analysis of oxy- and nitro-PAHs in urban aerosol samples and 9-fluorenone, 9,10-anthraquinone, 2-methyl-9,10-anthraquinone, benzanthrone, benz[a]anthracene-7,12- 23 dione and 1-nitropyrene were identified at concentrations ranging between 15 and 364 pg m . |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
AIR ANALYSIS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
AEROSOLS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
SUPERCRITICAL FLUID EXTRACTION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
ENVIRONMENTAL ANALYSIS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
POLYNUCLEAR AROMATIC HYDROCARBONS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
NITRATED |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
POLYNUCLEAR AROMATIC HYDROCARBONS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
OXYGENATED |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Castells, P. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Santos, F.J. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Galceran, M.T. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1y6nG8CVkimTKtWPukgXe_3TmdcH5EWQX/view?usp=drivesdk">https://drive.google.com/file/d/1y6nG8CVkimTKtWPukgXe_3TmdcH5EWQX/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
