Fluorescent Properties of Hymecromone and Fluorimetric Analysis of Hymecromone in Compound Dantong Capsule

Table 2

Measurement of fluorescence quantum yield of 4MU in different condition.

𝜆ex/nm	Quinine bisulphate			4MU (pH 5.98)			4MU (pH 9.75)
	𝐴	𝐹^∗	𝑌	𝐴	𝐹^∗	𝑌	𝐴	𝐹^∗	𝑌
313	0.0365	105566	0.55	0.0440	178748	0.77
320	0.0391	104878	0.51	0.0488	190213	0.74
350	0.0411	123457	0.57				0.0440	220646	0.95
360	0.0320	95986	0.57				0.0481	239780	0.95

𝐹^∗ wavelength range of integral fluorescence intensity: 380 nm~600 nm.