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dc.contributor.authorStaden JJ van
dc.contributor.authorCleven RFMJ
dc.contributor.authorWiel HJ van de
dc.date.accessioned2012-12-12T23:04:00Z
dc.date.available2012-12-12T23:04:00Z
dc.date.issued1992-09-30
dc.identifier222401001
dc.identifier.urihttp://hdl.handle.net/10029/261916
dc.description.abstractAbstract niet beschikbaar
dc.description.abstractParticulate ions in air are collected by low volume samplers on filters containing low levels of these ions. The mean concentration found in extracts of blank filters compared to the mean concentration of loaded filters, collected largely in 1990, is 37% for chloride, 6% for nitrate, 7% for sulphate and 31% for ammonium. Three blank correction methods are evaluated. The correction method with the mean of 8 blank filters of the adjacent period gives a trend compensation with an negligible increase of the random error. Comparison of the ion concentrations found in field blanks (A), with ion concentrations found in blank filters itselves (B) showed no differences. Contamination caused by the extraction procedure could not be demonstrated.
dc.description.sponsorshipRIVM
dc.format.extent18 p
dc.language.isonl
dc.relation.ispartofRIVM Rapport 222401001
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/222401001.html
dc.subject18nl
dc.subject92-3nl
dc.titleEvaluatie van analyseresultaten van verzurende ionen in extracten van blanco LVS-filtersnl
dc.title.alternativeEvaluation of analyses of acidifying ions in extracts of blank LVS filtersen
dc.typeReport
dc.date.updated2012-12-12T23:04:01Z
html.description.abstractAbstract niet beschikbaar
html.description.abstractParticulate ions in air are collected by low volume samplers on filters containing low levels of these ions. The mean concentration found in extracts of blank filters compared to the mean concentration of loaded filters, collected largely in 1990, is 37% for chloride, 6% for nitrate, 7% for sulphate and 31% for ammonium. Three blank correction methods are evaluated. The correction method with the mean of 8 blank filters of the adjacent period gives a trend compensation with an negligible increase of the random error. Comparison of the ion concentrations found in field blanks (A), with ion concentrations found in blank filters itselves (B) showed no differences. Contamination caused by the extraction procedure could not be demonstrated.


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