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Chiral separation of beta-blockers by high-performance liquid chromatography and determination of bisoprolol enantiomers in surface waters


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Figure 1

Structures of the analysed beta-blockers (chiral centres are marked with an asterisk)
Structures of the analysed beta-blockers (chiral centres are marked with an asterisk)

Figure 2

Chromatographic separation of acebutolol, atenolol, bisoprolol, labetalol, and metoprolol enantiomers on the Chirobiotic V column using the MeOH:HAc:TEA (100:0.2:0.15) mobile phase, flow rate of 0.5 mL/min, and column temperature of 45 °C (detection wavelength 230 nm)
Chromatographic separation of acebutolol, atenolol, bisoprolol, labetalol, and metoprolol enantiomers on the Chirobiotic V column using the MeOH:HAc:TEA (100:0.2:0.15) mobile phase, flow rate of 0.5 mL/min, and column temperature of 45 °C (detection wavelength 230 nm)

Figure 3

Chromatograms of samples from the Kunraticky stream (A) and the Sava River (B), spiked with bisoprolol enantiomers at 12 μg/L after solid-phase extraction
Chromatograms of samples from the Kunraticky stream (A) and the Sava River (B), spiked with bisoprolol enantiomers at 12 μg/L after solid-phase extraction

Chromatographic parameters for beta-blockers separated on the Chirobiotic V column using the MeOH:HAc:TEA (100:0.2:0.15) mobile phase, flow rate of 0.5 mL/min, and column temperature of 45 °C (detection wavelength 230 nm)

Analyte Enantiomer Retention time/min Rs k α
E1 13.19 1.12
Acebutolol E2 13.99 1.43 1.24 1.12

E1 14.53 1.33
Atenolol E2 15.38 1.37 1.46 1.10

Bisoprolol E1 10.85 1.30 0.74 1.12
E2 11.43 0.83

E1 17.49 0.65 1.77 1.03
Labetalol E2 18.11 3.06 1.82 1.26
E3 21.16 2.30
E4 23.67 2.41 2.69 1.17

E1 11.43 0.84
Metoprolol E2 12.04 1.30 0.93 1.12

Expected and calculated concentrations of bisoprolol enantiomers and their recoveries in spiked samples of distilled and surface waters from Zagreb and Prague

Expected γ (μg/L) Calculated γ (μg/L) Recovery (%)

BIS 1 BIS 2 BIS 1 BIS 2 BIS 1 BIS 2
Distilled water 1 12.00 12.00 12.02 11.85 100.2 98.8

Distilled water 2 240.00 240.00 265.71 264.58 110.7 110.2

Prague 1 12.00 12.00 13.18 13.19 109.8 109.9

Prague 2 9.36 9.36 10.08 10.08 107.7 107.7

Prague 3 8.16 8.16 9.44 9.49 115.7 116.3

Sava 1 1.80 1.80 2.27 2.35 126.3 130.3

Sava 2 6.00 6.00 8.14 8.30 135.7 138.3

Sava 3 12.00 12.00 13.90 14.31 115.8 119.3
eISSN:
1848-6312
Idiomas:
Inglés, Slovenian
Calendario de la edición:
4 veces al año
Temas de la revista:
Medicine, Basic Medical Science, other