Copper (DTPA extract)


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This is a soil fertility test. The DTPA micronutrient extraction method is a nonequilibrium extraction for estimating the potential soil bioavailability of copper for neutral and calcareous soils. Analyte concentrations are determined by atomic absorption spectrometry (AAS) or inductively coupled plasma atomic emission spectrometry (ICP-AES). The method detection limit is approximately 0.1 mg/kg and is generally reproducible ± 10%.


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