
Nonhydrolytic sol-gel approach to facile creation of surface-bonded zirconia organic-inorganic hybrid coatings for sample preparation. Î. Capillary microextraction of catecholamine neurotransmitters
Keywords: Nonhydrolytic sol-gel approach; Capillary microextraction (CME); Surface-bonded zirconia-polypropylene oxide sorbent coatings; pH stability; Catecholamines; Desorption efficiency (DE);