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.

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

Low
(400–600)
2412%8032%157%3724%3817%7840%
Medium (2500–6000)47320%116968%542%1836%22916%75035%
High (9000–12000)71213%284039%36110%86155%3909%70618%

We are committed to sharing findings related to COVID-19 as quickly as possible. We will be providing unlimited waivers of publication charges for accepted research articles as well as case reports and case series related to COVID-19. Review articles are excluded from this waiver policy. Sign up here as a reviewer to help fast-track new submissions.