TY - JOUR
T1 - A nitrocellulose paper strip for fluorometric determination of bisphenol A using molecularly imprinted nanoparticles
AU - Üzek, Recep
AU - Sari, Esma
AU - Şenel, Serap
AU - Denizli, Adil
AU - Merkoçi, Arben
PY - 2019
Y1 - 2019
N2 - The authors describe a test stripe for fluorometric determination of the endocrine disruptor bisphenol A (BPA). Graphene quantum dots (GQDs) were immobilized on molecularly imprinted nanoparticles which then were placed on nitrocellulose paper. The GQDs display blue fluorescence (with excitation/emission peaks at 350/440 nm) which is reduced in the presence of BPA. The test stripe has a 43.9 ± 0.8 μg.L¯¹ limit of detection in case of water samples. The stripe was applied to the determination of BPA in (spiked) tap water and sea water, and the LODs were found to be 1.8 ± 0.2 μg·L¯¹ and 4.2 ± 0.5 μg·L¯¹ , respectively. Structural analogs of BPA, such as aminophenol, phenol, hydroquinone and naphthol were found not to interfere.
AB - The authors describe a test stripe for fluorometric determination of the endocrine disruptor bisphenol A (BPA). Graphene quantum dots (GQDs) were immobilized on molecularly imprinted nanoparticles which then were placed on nitrocellulose paper. The GQDs display blue fluorescence (with excitation/emission peaks at 350/440 nm) which is reduced in the presence of BPA. The test stripe has a 43.9 ± 0.8 μg.L¯¹ limit of detection in case of water samples. The stripe was applied to the determination of BPA in (spiked) tap water and sea water, and the LODs were found to be 1.8 ± 0.2 μg·L¯¹ and 4.2 ± 0.5 μg·L¯¹ , respectively. Structural analogs of BPA, such as aminophenol, phenol, hydroquinone and naphthol were found not to interfere.
KW - Graphene quantum dot
KW - Endocrine disruptor
KW - Fluorescence quenching
KW - Paper sensor
KW - Molecular recognition
U2 - 10.1007/s00604-019-3323-y
DO - 10.1007/s00604-019-3323-y
M3 - Article
SN - 1436-5073
VL - 186
JO - Mikrochimica Acta
JF - Mikrochimica Acta
IS - 4
ER -