Sensitive Determination of Terazosin in Pharmaceutical Formulations and Biological Samples by Ionic-Liquid Microextraction Prior to Spectrofluorimetry

Table 1

The experimental conditions for terazosin determination.

Microextraction parameters	Studied range	Selected condition
Amount of NaPF6 (mg)	0–400	350
Amount of [Hpy][BF4] (mg)	25–400	150
pH	5–12	10
Equilibration temperature (°C)	5–40	Room temperature
Centrifugation time (min)	1–15	5
Ionic strength (% w/v)	0–40	NE^a
Instrumental parameters
Excitation wavelength (nm)	200–350	330
Emission wavelength (nm)	350–700	376
Excitation and emission slit widths (nm)	5–20	10

^aNo effect.