Volume 11, Number 7—July 2005
Dispatch
Nosocomial Malaria and Saline Flush
Sanjay K. Jain*, Deborah Persaud*, Trish M. Perl*, Margaret A. Pass*, Kathleen M. Murphy*, John M. Pisciotta*, Peter F. Scholl*, James F. Casella*, and David J. Sullivan*
Figure 1
Figure 1. . Mass spectroscopic analysis of sterile saline flush syringes after routine use. The contents of the used syringes were concentrated by centrifugation. Matrix-assisted laser desorption ionization detected the α and β chains of hemoglobin as the ions at mass/charge (m/z) 15,126 and 15,867, respectively, in samples A (red), B (green), C (blue), and J (aqua) that were absent in the matrix alone (black). The lower limit of sensitivity with matrix-assisted laser desorption ionization is ≈0.5 erythrocytes per mL.
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