Trace metal composition of the aerosol at Neumayer Station, Antarctica during the year 2000 ...
Aerosol was continuously sampled by sucking ambient air with a flow rate of 120 m**3/h through Whatman 541 filters (diameter 240 mm) using a ventilated electropolished stainless steel inlet stack (total height about 8 m above the snow surface) with a 50% aerodynamic cut-off diameter around 7-10 µm....
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Format: | Dataset |
Language: | English |
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PANGAEA
2015
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Online Access: | https://dx.doi.org/10.1594/pangaea.855010 https://doi.pangaea.de/10.1594/PANGAEA.855010 |
Summary: | Aerosol was continuously sampled by sucking ambient air with a flow rate of 120 m**3/h through Whatman 541 filters (diameter 240 mm) using a ventilated electropolished stainless steel inlet stack (total height about 8 m above the snow surface) with a 50% aerodynamic cut-off diameter around 7-10 µm. Trace element analysis was performed by means of inductively coupled plasma - quadrupol mass spectrometry (ICP-QMS, ELAN 6000, Sciex/Perkin Elmer) equipped with a cross-flow nebulizer as sample introduction system. For trace element analyses we chose a total digestion of the samples with a pressurized digestion system (DAS 100, Picotrace) at 200°C in a mixture containing HNO3 (suprapure, 65%, Merck, sub-boiling bi-distilled), HF (suprapure, 40%, Merck, sub-boiling bi-distilled) and H2O2 (suprapure, 30%, Merck). With this device a series of 24 samples could be digested in parallel. Each series included one filter blank and a certified reference sample (NIST 1648 urban particulate matter). For calibration we used ... |
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