TABLE 2

Comparison of numbers of particles immobilized on poly-l-lysine-coated filters without and with immunolabeling procedurea

Particle size range (μm) and typeAM (SD) of no. of particles (× 104)/filtert test P value
Unstained filtersStained filters
0.2–0.5, submicronic fragments7.0 (0.8)9.9 (2.8)0.2
0.5–0.1, submicronic fragments9.9 (2.8)8.3 (2.0)0.5
1–2, fragments14.4 (1.3)14.8 (0.3)0.6
2–3.5, fragments40 (8.3)39.4 (6.2)0.9
>3.5 fragments178 (8.2)200 (9.4)0.03
Total249 (19)272.7 (12)0.1
  • a n = 3. AM, arithmetic mean.