TABLE 1

Number of gold particles per fragment type in the positive and negative controls

Sample type, fragment size range, control typeNo. of gold particlesNo. of sample particles correctly classified
AMaSDMinMax
Background (n = 100)0.40.6402
Controlsb
    0.2–1 μm
        Negative000050
        Positive10.88.503045
    1–2 μm
        Negative0.10.30145
        Positive21.414.404745
    2–3.5 μm
        Negative0.10.30145
        Positive66.0224.21912450
    >3.5 μm
        Negative0.240.690343
        Positive151.973.35040550
  • a AM, arithmetic mean.

  • b n = 50 for each set of negative or positive controls.