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Table 1 Lead levels in solutions recovered from capillary tubes: analysis of lead contamination

From: A methodological consideration for blood lead concentrations obtained from the earlobe in Japanese adults occupationally unexposed to lead

  Lead levels (μg/dL)
Heparinized glass capillary tube Physiological saline solution 1/100-diluted HNO3
TERUMO Corp. (150 μL, cap, VC-C110HL) 0.429 0.801
Thermo Fisher Scientific Inc. (250 μL, KN3131665) 0.119 0.136
Siemens Healthcare Diagnostics Manufacturing Ltd. (175 μL, cap, J473763) 0.015 0.019