TY - JOUR
T1 - Analysis of hydroxylated polybrominated diphenyl ethers in rat plasma by using ultra performance liquid chromatography-tandem mass spectrometry
AU - Lai, Yongquan
AU - Chen, Xueguo
AU - Lam, Michael Hon Wah
AU - CAI, Zongwei
N1 - Funding Information:
The authors thank the special post-graduate studentship program of “Persistent Toxic Substances” from Research Grant Council, University Grants Committee of Hong Kong SAR. Financial support of Collaborative Research Fund from the Research Grant Council ( HKBU1/CRF08 ) and the collaborative fund from National Sciences Foundation of China ( NSFC20621703 ) is acknowledged.
PY - 2011/5/1
Y1 - 2011/5/1
N2 - Ultra performance liquid chromatography (UPLC) provides improved resolution, speed and sensitivity compared to conventional high performance liquid chromatography (HPLC). In this study, a robust UPLC-ESI-MS/MS method was developed for the rapid determination of nine hydroxylated polybrominated diphenyl ethers (OH-PBDEs) in rat plasma. Under the optimized conditions, the OH-PBDE congeners were eluted within 7.0. min. The limits of quantification defined at the signal-to-noise ratio of 10 were 0.17-2.78. ng/mL in rat plasma. The method provided good linearity for the calibration curves with recoveries of 93.3-114.0% and repeatability with relative standard deviation (RSD) of 0.6-5.8% for intra-day and 3.2-10.4% for inter-day measurements. The developed method was applied for supporting the pharmacokinetics investigation of 6-OH-BDE-47 in two groups of Sprague-Dawley rats that received, respectively a single dose of 0.60. mg/kg (high dose) and 0.15. mg/kg (low dose) by intravenous injection. The results showed that plasma levels of 6-OH-BDE-47 declined bi-exponentially with elimination half-life of 71.7 and 85.6. min for lower and higher dose group, respectively. The obtained results of short elimination half-life suggested that 6-OH-BDE-47 might not accumulate significantly in rat.
AB - Ultra performance liquid chromatography (UPLC) provides improved resolution, speed and sensitivity compared to conventional high performance liquid chromatography (HPLC). In this study, a robust UPLC-ESI-MS/MS method was developed for the rapid determination of nine hydroxylated polybrominated diphenyl ethers (OH-PBDEs) in rat plasma. Under the optimized conditions, the OH-PBDE congeners were eluted within 7.0. min. The limits of quantification defined at the signal-to-noise ratio of 10 were 0.17-2.78. ng/mL in rat plasma. The method provided good linearity for the calibration curves with recoveries of 93.3-114.0% and repeatability with relative standard deviation (RSD) of 0.6-5.8% for intra-day and 3.2-10.4% for inter-day measurements. The developed method was applied for supporting the pharmacokinetics investigation of 6-OH-BDE-47 in two groups of Sprague-Dawley rats that received, respectively a single dose of 0.60. mg/kg (high dose) and 0.15. mg/kg (low dose) by intravenous injection. The results showed that plasma levels of 6-OH-BDE-47 declined bi-exponentially with elimination half-life of 71.7 and 85.6. min for lower and higher dose group, respectively. The obtained results of short elimination half-life suggested that 6-OH-BDE-47 might not accumulate significantly in rat.
KW - Hydroxylated polybrominated diphenyl ethers
KW - Pharmacokinetic study
KW - Selected reaction monitoring
KW - Ultra performance liquid chromatography
UR - http://www.scopus.com/inward/record.url?scp=79955045625&partnerID=8YFLogxK
U2 - 10.1016/j.jchromb.2011.03.024
DO - 10.1016/j.jchromb.2011.03.024
M3 - Journal article
C2 - 21478060
AN - SCOPUS:79955045625
SN - 1570-0232
VL - 879
SP - 1086
EP - 1090
JO - Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences
JF - Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences
IS - 15-16
ER -