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A simple new spectrophotometric method for the simultaneous determination of Cu, Fe and Zn in honey using PLS-2 multivariate calibration method has been proposed. Pr was used as an internal standard in order to evaluate the adjustment of the samples on PLS model, and the recovery of the analytes. The result obtained for honey samples was validated applying ICP-AES method. 5-Br-PADAP [2-(5-Br-2-pyridylazo)]-5-diethylaminophenol...
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