Abstract
An integrated approach has been developed for the multi-component analysis of indoor PM2.5 collected onto the same quartz fiber filter (QFF) by using an innovative combination of techniques such as inductively coupled sector field plasma mass spectrometry (ICP-SF-MS) with vapor-phase microwave-assisted aqua regia or sonication-assisted water extraction, ion chromatography, thermal-optical transmittance as well as high performance liquid chromatography and enzyme-linked 5,5'-dithio-bis(2-nitrobenzoic acid) assay for the determination of elemental composition, major inorganic ions, elemental/organic carbon (EC/OC) as well as oxidative potential (OP) through ascorbate (AA) and reduced glutathione (GSH) depletion, respectively. The low mass of PM2.5 collectable indoors, the elemental blank values of the QFFs and the sample volume/acidity requirements of the ICP-SF-MS represented a challenge for elemental determination. Finally, this approach was successfully applied for determination of 15 elements (Al, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Rb, Sr, Mo, Cd, Sn and Pb) at the ngm-3 level in more than two-thirds of indoor PM2.5 (n=25) collected in mechanically ventilated offices within the European Union project OFFICAIR at increased sampling flow rates (0.6m3h-1-2.3m3h-1) and sampling time (cca. 100h) in the acidic/aqueous extracts. The concentration of Cl-, NO3 -, SO4 2-, Na+, NH4 +, K+, Ca2+, Mg2+, OC and EC was at the μgm-3 level in the aqueous extracts. This new approach aiming at the comprehensive characterization of low mass indoor PM2.5 samples allowed assessment of OPAA and OPGSH in all samples. The PM2.5 critical sample mass to achieve elemental determination was approximately 400μg.
| Original language | English |
|---|---|
| Pages (from-to) | 22-29 |
| Number of pages | 8 |
| Journal | Microchemical Journal |
| Volume | 119 |
| DOIs | |
| Publication status | Published - Mar 1 2015 |
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Keywords
- Antioxidant depletion
- Elemental/organic carbon
- Inorganic ions
- Occupational exposure
- Particulate matter
- Trace elements
ASJC Scopus subject areas
- Analytical Chemistry
- Spectroscopy
Cite this
An integrated approach for the chemical characterization and oxidative potential assessment of indoor PM2.5 . / Mihucz, V.; Szigeti, Tamás; Dunster, Christina; Giannoni, Martina; de Kluizenaar, Yvonne; Cattaneo, Andrea; Mandin, Corinne; Bartzis, John G.; Lucarelli, Franco; Kelly, Frank J.; Záray, G.
In: Microchemical Journal, Vol. 119, 01.03.2015, p. 22-29.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - An integrated approach for the chemical characterization and oxidative potential assessment of indoor PM2.5
AU - Mihucz, V.
AU - Szigeti, Tamás
AU - Dunster, Christina
AU - Giannoni, Martina
AU - de Kluizenaar, Yvonne
AU - Cattaneo, Andrea
AU - Mandin, Corinne
AU - Bartzis, John G.
AU - Lucarelli, Franco
AU - Kelly, Frank J.
AU - Záray, G.
PY - 2015/3/1
Y1 - 2015/3/1
N2 - An integrated approach has been developed for the multi-component analysis of indoor PM2.5 collected onto the same quartz fiber filter (QFF) by using an innovative combination of techniques such as inductively coupled sector field plasma mass spectrometry (ICP-SF-MS) with vapor-phase microwave-assisted aqua regia or sonication-assisted water extraction, ion chromatography, thermal-optical transmittance as well as high performance liquid chromatography and enzyme-linked 5,5'-dithio-bis(2-nitrobenzoic acid) assay for the determination of elemental composition, major inorganic ions, elemental/organic carbon (EC/OC) as well as oxidative potential (OP) through ascorbate (AA) and reduced glutathione (GSH) depletion, respectively. The low mass of PM2.5 collectable indoors, the elemental blank values of the QFFs and the sample volume/acidity requirements of the ICP-SF-MS represented a challenge for elemental determination. Finally, this approach was successfully applied for determination of 15 elements (Al, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Rb, Sr, Mo, Cd, Sn and Pb) at the ngm-3 level in more than two-thirds of indoor PM2.5 (n=25) collected in mechanically ventilated offices within the European Union project OFFICAIR at increased sampling flow rates (0.6m3h-1-2.3m3h-1) and sampling time (cca. 100h) in the acidic/aqueous extracts. The concentration of Cl-, NO3 -, SO4 2-, Na+, NH4 +, K+, Ca2+, Mg2+, OC and EC was at the μgm-3 level in the aqueous extracts. This new approach aiming at the comprehensive characterization of low mass indoor PM2.5 samples allowed assessment of OPAA and OPGSH in all samples. The PM2.5 critical sample mass to achieve elemental determination was approximately 400μg.
AB - An integrated approach has been developed for the multi-component analysis of indoor PM2.5 collected onto the same quartz fiber filter (QFF) by using an innovative combination of techniques such as inductively coupled sector field plasma mass spectrometry (ICP-SF-MS) with vapor-phase microwave-assisted aqua regia or sonication-assisted water extraction, ion chromatography, thermal-optical transmittance as well as high performance liquid chromatography and enzyme-linked 5,5'-dithio-bis(2-nitrobenzoic acid) assay for the determination of elemental composition, major inorganic ions, elemental/organic carbon (EC/OC) as well as oxidative potential (OP) through ascorbate (AA) and reduced glutathione (GSH) depletion, respectively. The low mass of PM2.5 collectable indoors, the elemental blank values of the QFFs and the sample volume/acidity requirements of the ICP-SF-MS represented a challenge for elemental determination. Finally, this approach was successfully applied for determination of 15 elements (Al, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Rb, Sr, Mo, Cd, Sn and Pb) at the ngm-3 level in more than two-thirds of indoor PM2.5 (n=25) collected in mechanically ventilated offices within the European Union project OFFICAIR at increased sampling flow rates (0.6m3h-1-2.3m3h-1) and sampling time (cca. 100h) in the acidic/aqueous extracts. The concentration of Cl-, NO3 -, SO4 2-, Na+, NH4 +, K+, Ca2+, Mg2+, OC and EC was at the μgm-3 level in the aqueous extracts. This new approach aiming at the comprehensive characterization of low mass indoor PM2.5 samples allowed assessment of OPAA and OPGSH in all samples. The PM2.5 critical sample mass to achieve elemental determination was approximately 400μg.
KW - Antioxidant depletion
KW - Elemental/organic carbon
KW - Inorganic ions
KW - Occupational exposure
KW - Particulate matter
KW - Trace elements
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U2 - 10.1016/j.microc.2014.10.006
DO - 10.1016/j.microc.2014.10.006
M3 - Article
VL - 119
SP - 22
EP - 29
JO - Microchemical Journal
JF - Microchemical Journal
SN - 0026-265X
ER -