PLE spectra of BaGdF5: 1% Ho3+, x% Yb3+ (0 ≤ x ≤ 20) nanoparticles are also recorded by monitoring the characteristic emission of Yb3+ at 980 nm (Figure 3a).
In Fig. 6, the excitation spectra monitoring the characteristic emission of Mn2+ ions show a broad band with a peak at ~350 nm, which is the characteristic peak of ZnS absorption.
The presence of Ho3+ excitation in the PLE spectra of BaGdF5: 1% Ho3+, x% Yb3+ by monitoring the characteristic emission of Yb3+ gives an evidence to the energy transfer from Ho3+ to Yb3+.
The working principle of an electromechanical resonator for mass sensing applications is based on monitoring the characteristic resonance frequency downshift due to the particles attachment on the surface of the device.
Extracted ion chromatograms were used to quantify each NAPE precursor ion by monitoring the characteristic lyso-NAPE product ions in MS2 using 1-O-Hexadecyl-2-palmitoyl-sn-glycero-3-phospho- N-palmitoyl -ethanolamide (m/z 91-O-Hexadecyl-2-palmitoyl-sn-glycero-3-phospho- N-palmitoyl -ethanolamide
