“…With the common use of Cu(II) and Pd(II) targets ions in various industries and biologic treatments, numerous techniques have been developed for the detection of Cu(II) and Pd(II). Extensive techniques, such as extractive atomic absorption spectrometry [7], spectrophotometry [8], atomic absorption spectrometry [9], inductively coupled plasma-atomic emission spectroscopy [10], stripping voltammetry on a mercury drop [11], differential pulse anodic stripping voltammetry [12], X-ray fluorescence [13], and atomic fluorescence spectrometry, have been developed to detect Cu ions [14], leading to improvements in monitoring from the perspective of precision, accuracy, sensitivity, and selectivity. However, such procedures are also restricted by pre-concentration procedures and generation of organic wastes.…”