Performance Evaluation of Currently Used Portable X ray Fluorescence Instruments for Measuring the Lead Content of Paint in Field Samples.
Field-portable X-ray fluorescence (FP-XRF) instruments are important for non-destructive, rapid and convenient measurements of lead in paint, in view of potential remediation. Using real-life paint samples, we compared measurements from three FP-XRF instruments currently used in Switzerland with lab...
| Publicado en: | Journal of Occupational & Environmental Hygiene Vol. 11; no. 8; pp. 528 - 538 |
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| Autores principales: | , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Aug2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=96862251&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 96862251 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15459624 V1L jtl: Journal of Occupational & Environmental Hygiene issn: 15459624 maglogo: Y pubinfo: dt: Aug2014 vid: 11 iid: 8 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 96862251 96862251 96862251 10.1080/15459624.2014.880788 96862251 ppf: 528 ppct: 10 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Performance Evaluation of Currently Used Portable X ray Fluorescence Instruments for Measuring the Lead Content of Paint in Field Samples. aug: au: Muller, Yan Favreau, Philippe Kohler, Marcel affil: Départment de l'environnement, des transports et de l'agriculture, Direction générale de l'environnement, Service de Toxicologie de l'Environnement Bâti, Geneva, Switzerland sug: subj: Paint Switzerland Radiography Lead Analysis Human Mass Spectrometry Hazardous Materials Switzerland Construction Materials Education, Continuing (Credit) ab: Field-portable X-ray fluorescence (FP-XRF) instruments are important for non-destructive, rapid and convenient measurements of lead in paint, in view of potential remediation. Using real-life paint samples, we compared measurements from three FP-XRF instruments currently used in Switzerland with laboratory measurements using inductively coupled plasma mass spectrometry after complete sample dissolution. Two FP-XRF devices that functioned by lead L shell excitation frequently underestimated the lead concentration of samples. Lack of accuracy correlated with lead depth and/or the presence of additional metal elements (Zn, Ba or Ti). A radioactive source emitter XRF that enabled the additional K shell excitation showed higher accuracy and precision, regardless of the depth of the lead layer in the sample or the presence of other elements. Inspection of samples by light and electron microscopy revealed the diversity of real-life samples, with multi-layered paints showing various depths of lead and other metals. We conclude that the most accurate measurements of lead in paint are currently obtained with instruments that provide at least sufficient energy for lead K shell excitation. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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