Abstract：
:A sensitive and specific fluorescein isothiocyanate (FITC) label coupled with size-exclusion high-performance liquid chromatography-fluorescence detection (SE-HPLC-FLD) method was developed and validated for the estimation of the pharmacokinetic profiles of porcine fibrinogen after intraperitoneal injection of a porcine-derived fibrin glue (FG) to SD rats and beagle dogs with three single doses. Porcine fibrinogen, the major composition of the FG, was labeled with FITC. The FG containing FITC-labeled porcine fibrinogen was intraperitoneally administered to SD rats at three single dosages (100, 200, 400mg/kg of porcine fibrinogen), and the collected plasma was then detected by SE-HPLC-FLD method. The present technique was compared to the previously introduced isotope-labeled assay method for the pharmacokinetic studies in SD rats. The pharmacokinetic studies in SD rats showed that the correlation coefficient between the FITC-labeled assay and (125)I-labeled assay methods was r(2)=0.989. Thus, this FITC-labeled assay method performed well and demonstrated high concordance with the previous (125)I-labeled assay method, suggesting that FITC-labeled assay could substitute the (125)I-labeled assay as a method of choice for quantification in beagle dogs. Then the plasma levels of porcine fibrinogen in beagle dogs were studied by the FITC-labeled assay method with three single doses (15, 30, 60mg/kg of porcine fibrinogen). The method validation showed that the FITC label coupled with SE-HPLC-FLD method was suitable for the quantification of porcine fibrinogen in plasma samples with satisfactory linear (r(2)>0.999), precision (<12%), accuracy (95.5-104.9%) and recovery (>88%). The results showed linear disposition of porcine fibrinogen at the examined dosage range in SD rats or beagle dogs.
journal_name
J Pharm Biomed Analjournal_title
Journal of pharmaceutical and biomedical analysisauthors
Xie Y,He H,Fan G,Wu Ydoi
10.1016/j.jpba.2011.08.037subject
Has Abstractpub_date
2012-01-05 00:00:00pages
7-12eissn
0731-7085issn
1873-264Xpii
S0731-7085(11)00493-6journal_volume
57pub_type
杂志文章abstract：:There must be a large market for active pharmaceutical ingredients of illegal source to support the huge and lucrative business of trade in illegal medicines. The active substances found in illegal pharmaceuticals may differ from their legal counterparts concerning purity and associated risks for the health of the use...
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abstract：:Standards are required in quantitative NMR (qNMR) to obtain accurate and precise results. In this study acetanilide was established and used as a primary standard. Six other chemicals were selected as secondary standards: 3,4,5-trichloropyridine, dimethylterephthalate, maleic acid, 3-sulfolene, 1,4-bis(trimethylsilyl)...
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journal_title：Journal of pharmaceutical and biomedical analysis
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journal_title：Journal of pharmaceutical and biomedical analysis
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journal_title：Journal of pharmaceutical and biomedical analysis
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journal_title：Journal of pharmaceutical and biomedical analysis
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journal_title：Journal of pharmaceutical and biomedical analysis
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journal_title：Journal of pharmaceutical and biomedical analysis
pub_type： 杂志文章
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journal_title：Journal of pharmaceutical and biomedical analysis
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abstract：:A method for the spectrophotometric determination of promazine by flow injection analysis is reported. The procedure is based on the reaction of promazine with molybdophosphoric acid. Concentrations of promazine in the range 1-25 ppm have been determined with a relative standard deviation of 1.8% at 10 ppm (n = 20). T...
journal_title：Journal of pharmaceutical and biomedical analysis
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