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Clinical Chemistry 41: 1451-1454, 1995;
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Clinical Chemistry, Vol 41, 1451-1454, Copyright © 1995 by American Association for Clinical Chemistry

Transferability of blood lead determinations by furnace atomic absorption spectrophotometry and continuum background correction

H Qiao, PJ Parsons and W Slavin
Wadsworth Center, New York State Department of Health, Albany, NY 12201, USA.

We have examined and proved feasible the transfer of a method for blood lead determination, developed and optimized for a Zeeman-corrected instrument, to a continuum-corrected furnace atomic absorption spectrophotometer. Numerous reference materials analyzed with the continuum-corrected instrument gave results within 10 micrograms/L (0.05 mumol/L) at low values and varied by < 6% at values > 200 micrograms/L (0.97 mumol/L). Forty-four routine human blood specimens were analyzed by the same method with both continuum- and Zeeman- corrected instrumentation, and gave results that agreed within about the same limits as found with reference materials. The day-to-day precision was about 1/5 the accuracy results. The detection limit was approximately 5 micrograms/L (0.025 mumol/L).


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E W Harville, I Hertz-Picciotto, M Schramm, M Watt-Morse, K Chantala, J Osterloh, P J Parsons, and W Rogan
Factors influencing the difference between maternal and cord blood lead
Occup. Environ. Med., April 1, 2005; 62(4): 263 - 269.
[Abstract] [Full Text] [PDF]


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