44-149 53 44 85 80 Total Number Total Number [Total Number 36 a 28 Particles Throughout 40 55 5 Indistingui shable 53 32 85 Indistinguishable 3 40 20 67 36 53 80 20 Indistingui shable (pet) {Distributed Indistingui shable 60 69 70 face (pet) on the Sur~ 7 13 11 12 11 1 8 4 the Particle(%) tered ThrougRout with Activity Activity Evenly, Activity Scat- of Particles |Particles With |Particles With redistrituted by Shot 2 * Some and perhaps most of these particles probably originated from Shot 1 and were which was dried) 210-420 149-210 420-1000 (wet sample 149-210 62 33 420-1000 210-420 327 144 95 113 75 75 bLe-Lh9 3 Particles Examined 420~1000 210-420 149-210 44-149 49-149 149-210 210-420 420-1000 (n) Size Range (dry sample ) 3 2e 1 Shot Number of TABLE 3.17 ~ Activity Distribution Within Imiividual Particles SERS