PMID- 11529164
OWN - NLM
STAT- MEDLINE
DCOM- 20010913
LR  - 20191210
IS  - 1464-0325 (Print)
IS  - 1464-0325 (Linking)
VI  - 1
IP  - 5
DP  - 1999 Oct
TI  - Ultrasonic extraction and portable anodic stripping voltammetric measurement of 
      lead in paint, dust wipes, soil, and air: an interlaboratory evaluation.
PG  - 459-64
AB  - Recent studies have demonstrated the utility of ultrasonic extraction (UE), 
      followed by portable anodic stripping voltammetry (ASV), for the on-site 
      determination of lead in environmental and industrial hygiene samples. The aim of 
      this work was to conduct an interlaboratory evaluation of the UE-ASV procedure, 
      with a goal of establishing estimates of method performance based on results from 
      collaborative interlaboratory analysis. In this investigation, performance 
      evaluation materials (PEMs) with characterized lead concentrations were used for 
      interlaboratory testing of the UE-ASV procedure. The UE-ASV protocol examined has 
      been promulgated in the form of two separate national voluntary consensus 
      standards (one for UE and another for electroanalysis, which includes ASV). The 
      PEMs consisted of characterized and homogenized paints, soils, and dusts (the 
      last of which were spiked onto wipes meeting national voluntary consensus 
      standard specifications), and air filter samples (mixed cellulose ester membrane) 
      generated using characterized paints within an aerosol chamber. The lead 
      concentrations within the PEMs were chosen so as to bracket pertinent action 
      levels for lead in the various sample matrices. The interlaboratory evaluation 
      was conducted so as to comply with an applicable national voluntary consensus 
      standard that can be used to estimate the interlaboratory precision of a given 
      analytical test method. Based on the analytical results reported by the 
      participating laboratories, relative standard deviations (RSDs) for repeatability 
      and reproducibility were computed for three different lead contents of the four 
      PEMs. RSDs for repeatability were 0.019-0.100 for paints; 0.030-0.151 for soils; 
      0.085-0.134 for dust wipes; and 0.095-0.137 for air filters. RSDs for 
      reproducibility were 0.127-0.213 for paints; 0.062-0.162 for soils; 0.085-0.134 
      for dust wipes; and 0.114-0.220 for air filters. With the exception of one of the 
      air filter samples and one of the paint samples, the precision estimates were 
      within the +/- 20% precision requirement specified in the US Environmental 
      Protection Agency National Lead Laboratory Accreditation Program (NLLAP). The 
      results of this investigation illustrate that the UE-ASV procedure is an 
      effective method for the quantitative measurement of lead in the matrices 
      evaluated in this study.
FAU - Ashley, K
AU  - Ashley K
AD  - US Department of Health and Human Services, Centers for Disease Control and 
      Prevention, National Institute for Occupational Safety and Health, 4676 Columbia 
      Parkway, Cincinnati, OH 45226, USA.
FAU - Song, R
AU  - Song R
FAU - Esche, C A
AU  - Esche CA
FAU - Schlecht, P C
AU  - Schlecht PC
FAU - Baron, P A
AU  - Baron PA
FAU - Wise, T J
AU  - Wise TJ
LA  - eng
GR  - NIO.C92.001.00/PHS HHS/United States
PT  - Evaluation Study
PT  - Journal Article
PT  - Research Support, U.S. Gov't, P.H.S.
PL  - England
TA  - J Environ Monit
JT  - Journal of environmental monitoring : JEM
JID - 100968688
RN  - 0 (Dust)
RN  - 2P299V784P (Lead)
SB  - IM
MH  - Air Pollution, Indoor/*analysis
MH  - Dust
MH  - Electrodes
MH  - Environmental Exposure
MH  - Environmental Monitoring/*instrumentation/methods
MH  - Housing
MH  - Humans
MH  - Lead/*analysis
MH  - Paint
MH  - Reproducibility of Results
MH  - Ultrasonics
EDAT- 2001/09/01 10:00
MHDA- 2001/09/14 10:01
CRDT- 2001/09/01 10:00
PHST- 2001/09/01 10:00 [pubmed]
PHST- 2001/09/14 10:01 [medline]
PHST- 2001/09/01 10:00 [entrez]
AID - 10.1039/a903685g [doi]
PST - ppublish
SO  - J Environ Monit. 1999 Oct;1(5):459-64. doi: 10.1039/a903685g.