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Method validation for (ultra)-trace element concentrations in urine for small sample volumes in large epidemiological studies: application to the population-based epidemiological multi-ethnic study of atherosclerosis (MESA).
Schilling, Kathrin; Glabonjat, Ronald A; Balac, Olgica; Gálvez-Fernández, Marta; Domingo-Relloso, Arce; Slavkovich, Vesna; Goldsmith, Jeff; Jones, Miranda R; Sanchez, Tiffany R; Navas-Acien, Ana.
Afiliación
  • Schilling K; Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA. ks3759@columbia.edu.
  • Glabonjat RA; Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA. ks3759@columbia.edu.
  • Balac O; Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA. ks3759@columbia.edu.
  • Gálvez-Fernández M; Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA. ks3759@columbia.edu.
  • Domingo-Relloso A; Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA. ks3759@columbia.edu.
  • Slavkovich V; Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA. ks3759@columbia.edu.
  • Goldsmith J; Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York, USA.
  • Jones MR; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
  • Sanchez TR; Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA. ks3759@columbia.edu.
  • Navas-Acien A; Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA. ks3759@columbia.edu.
Anal Methods ; 16(2): 214-226, 2024 01 04.
Article en En | MEDLINE | ID: mdl-38099473
ABSTRACT
Analysis of essential and non-essential trace elements in urine has emerged as a valuable tool for assessing occupational and environmental exposures, diagnosing nutritional status and guiding public health and health care intervention. Our study focused on the analysis of trace elements in urine samples from the Multi-Ethnic Study of Atherosclerosis (MESA), a precious resource for health research with limited sample volumes. Here we provide a comprehensive and sensitive method for the analysis of 18 elements using only 100 µL of urine. Method sensitivity, accuracy, and precision were assessed. The analysis by inductively coupled plasma mass spectrometry (ICP-MS) included the measurement of antimony (Sb), arsenic (As), barium (Ba), cadmium (Cd), cesium (Cs), cobalt (Co), copper (Cu), gadolinium (Gd), lead (Pb), manganese (Mn), molybdenum (Mo), nickel (Ni), selenium (Se), strontium (Sr), thallium (Tl), tungsten (W), uranium (U), and zinc (Zn). Further, we reported urinary trace element concentrations by covariates including gender, ethnicity/race, smoking and location. The results showed good accuracy and sensitivity of the ICP-MS method with the limit of detections rangings between 0.001 µg L-1 for U to 6.2 µg L-1 for Zn. Intra-day precision for MESA urine analysis varied between 1.4% for Mo and 26% for Mn (average 6.4% for all elements). The average inter-day precision for most elements was <8.5% except for Gd (20%), U (16%) and Mn (19%) due to very low urinary concentrations. Urinary mean concentrations of non-essential elements followed the order of Sr > As > Cs > Ni > Ba > Pb > Cd > Gd > Tl > W > U. The order of urinary mean concentrations for essential trace elements was Zn > Se > Mo > Cu > Co > Mn. Non-adjusted mean concentration of non-essential trace elements in urine from MESA participants follow the order Sr > As > Cs > Ni > Ba > Pb > Cd > Gd > Tl > W > U. The unadjusted urinary mean concentrations of essential trace elements decrease from Zn > Se > Mo > Cu > Co > Mn.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Arsénico / Selenio / Oligoelementos Límite: Humans Idioma: En Revista: Anal Methods Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Arsénico / Selenio / Oligoelementos Límite: Humans Idioma: En Revista: Anal Methods Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido