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Guide for Characterization of Sites Contaminated with Energetic Materials
45
variable as compared to the immunoassay method (i.e., 2 g is used for
immunoassay).
Table H2. Detection limits, colorimetric method.
Minimum sensitivity
Compound
(mg/kg)*
1
2,4,6-trinitrotoluene (TNT)
1
1,3,5-hexahydro-1,3,5-trinitrotriazine (RDX)
0.5
2,4-dinitrotoluene (2,4-DNT)
2.1
2,6-dinitrotoluene (2,6-DNT)
>100
2-nitrotoluene (2-NT)
>100
3-nitrotoluene (3-NT)
>100
4-nitrotoluene (4-NT)
>100
4-amino-2,6-dinitrotoluene (4-ADNT)
0.5
1,3,5-trinitrobenzene (TNB)
>100
Nitrobenzene (NB)
0.9
Tetryl
ca. 0.5
1,3-dinitrobenzene (DNB)
*The lowest concentration at which the analyte is distinguishable from
a matrix blank by two standard deviations.
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