“…7 Ytterbium and other lanthanide oxides are extensively employed in the manufacture of optical glasses, optical bers, gasoline-cracking catalysts, polishing products, and carbon arcs as well as in the iron and steel industries to remove sulphur, carbon, and other electronegative components. 8 Cathodic stripping voltammetry, 9 luminescence spectroscopy, 10 spectrophotometry, 11,12 near-infrared spectroscopy, 13,14 ICP-MS, 15,16 HPLC-ICP-MS, 17 thermal ionization mass spectrometry, 18 ICP-AES, [19][20][21] neutron activation analysis, isotope dilution mass spectrometry, X-ray uorescence spectrometry, [22][23][24] and electrothermal atomic absorption spectrometry 25 are typical techniques for detecting Yb 3+ ions in solutions at low levels. However, almost all of them are slow since they require various stages for sample preparation and are costly.…”