Trace metal composition of the aerosol at Neumayer Station, Antarctica during the year 2000 ...

• Main Author: Weller, Rolf
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: HEIGHT above ground; DATE/TIME; Date/time end; Duration, number of days; Lithium; Sodium; Magnesium; Potassium; Calcium; Strontium; Aluminium; Vanadium; Manganese; Iron; Selenium; Cadmium; Lanthanum; Cerium; Neodymium; Uranium; Air chemistry observatory; ICP-QMS, Perkin-Elmer, SCIEX Elan 6000; Neumayer_based; NEUMAYER III; Atmospheric Chemistry @ AWI AWI_AC; Neumayer; Neumayer Station; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.1594/pangaea.855010; https://doi.pangaea.de/10.1594/PANGAEA.855010

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 ...