TY - GEN
T1 - Metals in ambient air
T2 - Symposium on Air Quality Measurement Methods and Technology 2004
AU - Tylee, Barry E.
AU - Butler, Owen T.
AU - Freitas, Maria C.
AU - Vieira, Bruno
AU - Ma, Renli
AU - Schmeling, Martina
PY - 2004
Y1 - 2004
N2 - WASP and EnACT are UK proficiency-testing programmes for the analysis of air monitoring samples. Since the scheme's inception WASP has offered metals spiked onto filters at occupational levels. More recently, realistic filter samples such as welding fume have been introduced into the scheme. The development of a new CEN measurement method for metals in ambient air has highlighted the need for new filter-based QC materials. A multiport air sampler was used to collect large batches of near identical air filters from the ambient air. Representative filters were digested and analysed for As, Cd, Ni and Pb using ICP-MS and by TXRF. Results obtained were cross-checked against filters analysed by INAA and PIXE. It is shown that this sampler can produce batches of filters with an intra-batch precision of typically better than 10 %, which may be sufficient for use in future QA/QC initiatives involving the EnACT scheme.
AB - WASP and EnACT are UK proficiency-testing programmes for the analysis of air monitoring samples. Since the scheme's inception WASP has offered metals spiked onto filters at occupational levels. More recently, realistic filter samples such as welding fume have been introduced into the scheme. The development of a new CEN measurement method for metals in ambient air has highlighted the need for new filter-based QC materials. A multiport air sampler was used to collect large batches of near identical air filters from the ambient air. Representative filters were digested and analysed for As, Cd, Ni and Pb using ICP-MS and by TXRF. Results obtained were cross-checked against filters analysed by INAA and PIXE. It is shown that this sampler can produce batches of filters with an intra-batch precision of typically better than 10 %, which may be sufficient for use in future QA/QC initiatives involving the EnACT scheme.
KW - External quality assurance
KW - ICP-MS
KW - Metals in ambient air
KW - Microwave assisted digestion
KW - Multiport sampling system
KW - WASP/EnACT PT schemes
UR - http://www.scopus.com/inward/record.url?scp=19944371165&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:19944371165
SN - 0923204628
T3 - Symposium on Air Quality Measurement Methods and Technology 2004
SP - 441
EP - 459
BT - Symposium on Air Quality Measurement Methods and Technology 2004
Y2 - 20 April 2004 through 22 April 2004
ER -