Simultaneous Determination of Phenolic Xenoestrogens by Solid-Phase Extraction and High-Performance Liquid Chromatography with Fluorescence Detection

Development and Application of Sensitive Methods with Luminescence Detections for Determination of Biologically Active Compounds

“…BPA was found in both polycarbonate and polyvinyl chloride plastics, while 4-NP was found in plastics made of polyvinyl chloride and another polymer. 15) BPA levels in human blood serum and ascetic fluid were also achieved. The mean concentrations of BPA (n = 9) in maternal and umbilical cord sera obtained from healthy pregnant women were 0.46 ± 0.20 and 0.62 ± 0.13 ppb, respectively.…”

Simultaneous Determination of Five Polyether Ionophores Using Liquid Chromatography with One-step Fluorescent Derivatization

“…On the other hand, it is possible that DIB-Cl reagent could react with the phenol group under the EDC/pyridine condition. [15][16][17] We tried to use the DIB-Cl reagent for the derivatization of LAS under the EDC/pyridine condition. In this result, the DIB-Cl derivatization of LAS was completed under the EDC/pyridine condition, and in other polyether ionophores solutions with HCPI (Fig.…”

Analytical Studies on the Development of High-Performance Liquid Chromatographic Methods with Fluorescence or Chemiluminescence Detections and Their Practical Applications

“…19 Moreover, ebiratide, one of the synthetic analogues of ACTH4-9 for Alzheimer disease could also be determined and its time course in rat plasma could be traced with the lower levels of sub-pmol/mL. 20,21 2·2 Lophine derivatives [22][23][24][25][26][27][28][29][30][31][32][33][34] Lophine derivatives are well-known potential fluorescent or chemiluminescent compounds. Therefore, a variety of lophine derivatives were synthesized as shown in Fig.…”

“…30 Also, simultaneous determination of BPA, bisphenol B, bisphenol E, bisphenol F and 4-nonylphenol from polyvinyl chloride plastics were demonstrated by an HPLC-FL method. 31 Moreover, labeled BPA with DIB-Cl in biological fluids such as plasma, 32 microdialysates 33 and ascetic fluid 34 could be determined by an HPLC-FL method. The results obtained from these studies clarified the penetrating property of BPA through the blood-brain barrier 33 and the relationship of BPA concentrations in serum samples and in ascetic fluid samples.…”