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A 6-month field intercomparison study on precipitation measurements was performed at Schagerbrug near the west coast in the Netherlands. Twenty bulk sampling systems and two wet-only samplers were evaluated on accuracy, sampling strategy and performance under field conditions. Bulk precipitation fluxes of NO3-, NH4+, H+ and Kjeldahl-N generally could be(More)
A 6-month field intercomparison study on throughfall measurements was performed at Speulder forest near the west coast in The Netherlands. Twenty throughfall sampling systems were evaluated on accuracy, sampling strategy and performance under field conditions. Throughfall fluxes of NO3-, K+ and Kjeldahl-N generally could be determined with a larger accuracy(More)
Aspects of accuracy and precision of the determination of As and Sb in biological materials, using neutron activation with hydride generation, are discussed. It proves necessary to perform a yield determination for each sample. Both radiotracers and reactivation have been applied, and their practical use for yield correction is discussed. Results for(More)
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