Applied and Environmental Soil Science / 2012 / Article / Tab 3

Research Article

Quantitative Analysis of Total Petroleum Hydrocarbons in Soils: Comparison between Reflectance Spectroscopy and Solvent Extraction by 3 Certified Laboratories

Table 3

Intralab repetition statistics for low, medium, and high TPH levels.

TPH level (calculated)AVG deltaAVG deviationMax delta Max deviationAVG deltaAVG deviationMax deltaMax deviationAVG deltaAVG deviationMax deltaMax deviation

Medium (2500–6000)47320%116968%542%1836%22916%75035%
High (9000–12000)71213%284039%36110%86155%3909%70618%

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