Isotopic fingerprint method: Assessment of the origin of rare earth compounds from the isotope ratios of lead impurities

Lieser, Κ. H.; Fey, W.

doi:10.1007/bf00324302

Cited by 4 publications

(3 citation statements)

References 32 publications

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“…10,11 We determined the total lead content of the ceramics by measuring the leachates from each ceramic using a 4% nitric acid solution as the leaching solution on an Instruments SA JY70+ Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES). 9,10 Samples of the nitric acid solution were collected at 1 hour, 6 hours, and at 24 hours, from each container. 10 The isotope ratio measurements were performed on a Perkin Elmer ELAN 5000 Inductively Coupled Plasma Mass Spectrometer (ICP-MS) interfaced with a Perkin Elmer HGA-600MS Electrothermal Vaporization System (ETV) 10,12-14 described in a previous publication.…”

Section: Methodsmentioning

confidence: 99%

“…Except for 204 Pb, these isotopes are products of radioactive decay of either uranium or thorium. [7][8][9] Lead isotope ratio measurement -correlating body lead to possible external sources of lead exposure-is sometimes referred to as "lead fingerprinting." The isotopic content of lead introduced into a human body remains constant over time and changes only if another source of lead with differing lead isotopic content is introduced.…”

Section: Introductionmentioning

confidence: 99%

“…Since the body treats lead as one unit and does not metabolically alter it, all measurements of lead isotope ratio from a blood specimen can potentially be correlated to an outside source, if the number of lead sources are limited and little lead mixing has occurred. 8,9 The goal of this study was to determine the major source of lead exposure among women residing in Mexico City, whose BLL's exceeded 10 µg/dl, by comparing blood, ceramic, and gasoline lead isotope ratios. The investigation began in 1996 and was completed in 1998.…”

Section: Introductionmentioning

confidence: 99%

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Determining lead sources in Mexico using the lead isotope ratio

Chaudhary-Webb¹,

Paschal²,

Romieu³

et al. 2003

Salud pública Méx

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AM.Determining lead sources in Mexico using the lead isotope ratio. Salud Publica Mex 2003;45 suppl 2:S183-S188. This paper is available too at: http://www.insp.mx/salud/index.html Abstract Objective. Lead poisoning can, in some cases, be traced to a specific route or source of exposure on the basis of the individual's blood lead isotope ratio. To assess the major source of lead exposure among women residing in Mexico City, we compared blood, ceramic, and gasoline lead isotope ratios. Material and Methods. The study population, randomly selected from participants of a large trial, (1/1996-12/1996) .9890 values for the three isotope ratios, respectively, suggesting that the lead exposure most likely resulted from the use of these ceramic. Measurements of lead isotope ratios from leaded gasoline in use at the time of blood sampling, differed from those in blood and ceramics. Conclusions. Determining lead isotope ratios can be an efficient tool to identify a major source of lead exposure and to support the implementation of public health prevention and control measures. This paper is available too at:

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Determining lead sources in Mexico using the lead isotope ratio

Chaudhary-Webb¹,

Paschal²,

Romieu³

et al. 2003

Salud pública Méx

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Chapter 1 Current status of ICP-MS

Beauchemin¹

2000

Discrete Sample Introduction Techniques for Inductively Coupled Plasma Mass Spectrometry

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Dependence of detector dead time on analyte mass number in inductively coupled plasma mass spectrometry

Vanhaecke¹,

Wannemacker²,

Moëns³

et al. 1998

J. Anal. At. Spectrom.

110

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ICP mass spectrometry is being increasingly used for isotopic analysis and for element determination by means of isotope dilution. For accurate isotope ratio determination, both the mass discrimination and the detector dead time have to be appropriately corrected for. For a Finnigan-MAT Element and a Perkin-Elmer SCIEX Elan 5000 ICP mass spectrometer, the constancy of the detector dead time across the mass range was systematically investigated. For the Element, which is equipped with a conversion dynode and a secondary electron multiplier with discrete dynodes, the dead time was observed to be independent of the analyte mass number. For the Elan 5000, however, which is equipped with a Channeltron-continuous dynode-electron multiplier, the detector dead time was observed to be strongly mass-dependent. The decreasing gain of Channeltron electron multipliers with increasing ion mass may be at the origin of the behaviour established. This observation has to be taken into account when highly accurate isotope ratio measurements are required and hence the detector dead time has to be properly determined and corrected for

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Isotopic fingerprint method: Assessment of the origin of rare earth compounds from the isotope ratios of lead impurities

Cited by 4 publications

References 32 publications

Determining lead sources in Mexico using the lead isotope ratio

Determining lead sources in Mexico using the lead isotope ratio

Chapter 1 Current status of ICP-MS

Dependence of detector dead time on analyte mass number in inductively coupled plasma mass spectrometry

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