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In this paper, the non-protected room temperature phosphorescence (NP-RTP) properties of α-naphthyloxyacetic (α-NOA) and β-naphthyloxyacetic acid (β-NOA) and effects of organic solvents have been studied to clarify the effects of position of substituent on the luminescence. Both α-NOA and β-NOA aqueous solutions can emit strong and stable RTP signal in the absence of a protecting medium by addition...
A surface acoustic wave (SAW) urease sensor system was developed in which a SAW resonator oscillating at 61 MHz and a pair of parallel electrodes were utilized by coupling with urease extracted from pumpkin seeds. The Michaelis constant and the maximum reaction rate of urease were estimated as 2.08 10 -3 mol/l and 8.85 kHz/min, respectively, at pH 7.5 and 25.0° C. The analytical...
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