RESULTS AND DISCUSSION - SR96_100013

Protocol for kinetic extraction studies

Table 4. Extraction rate data for TNT from field-moist soils

SR96_10
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RESULTS AND DISCUSSION

Kinetic extraction tests

Initial extraction rate studies were conducted with archived soil samples from a variety of instal-

lations. These samples had been air dried and stored for several years at room temperature. Soils

were moistened by adding water prior to adding extraction solvent to simulate the field-moist con-

ditions that would be present when samples are subjected to on-site analysis. Results of RP-HPLC

analyses of these acetone and methanol extracts are presented in Tables 3a3c.

Table 3. High concentration extraction rate study for archived soils.

TNT concentration (g/g)*

* Estimated by RP-HPLC.

†A = Acetone extraction, M = Methanol extraction.

RDX concentration (g/g)*

Acetone Methanol

Acetone Methanol Acetone Methanol Acetone Methanol

* Estimated by RP-HPLC.

2,4-DNT concentration (g/g)*

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Acetone Methanol Acetone Methanol

* Estimated by RP-HPLC.

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