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–FL) [ 8 , 9 , 10 , 11 ] and by capillary electrophoresis with UV detection (CE–UV) [ 12 ] and electrospray mass spectrometry (CE–MS) [ 13 ]. In food of animal origin, various fluoroquinolones were detected including MAR by HPLC–UV [ 14 , 15

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techniques such as capillary electrophoresis [ 10 ], various electrochemical detections, near infrared (NIR), and liquid chromatography–mass spectrometry are available for macrolide residues determination [ 11 ]. They have been applied for the determination

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: extraction with boiling buffers [ 5 , 8 ], extraction with cold acids [ 9 – 11 ], or extraction with organic solvents [ 2 , 8 ]. Various techniques are available to quantify adenine nucleotides including capillary electrophoresis [ 12 ], ion

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], or through using capillary electrophoresis [ 8 , 9 ]. Pioglitazone (PIO) is a thiazolidinedione antidiabetic agent and chemically is ( RS )-5-(4-[2-(5-ethylpyridin-2-yl)ethoxy]benzyl)thiazolidine-2,4-dione (Figure 1 ). It selectively

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(HPTLC), high-performance liquid chromatography (HPLC), and capillary electrophoresis (CE). Among these methods, HPLC is the most popular method for quantitative analysis of drugs and impurities, due to its selectivity, precision, and accuracy [ 12 , 13

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capillary electrophoresis [ 27 ], fluorescence polarization immunoassay [ 28 ], and electrochemistry using ion-selective electrodes [ 29 ]. To our knowledge, there is no report about simultaneous determination of sodium metabisulfite and sodium

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. Dette , AC , Watzig , H 1993 Characterisation of the important pharmaceutical intermediate pyridine-2,4-dicarboxylic acid using capillary electrophoresis (CE) . Pharmazie 48 : 276 – 280 . 13

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chromatographic separation with mass spectrometric detection [ 18 ], capillary electrophoresis [ 19 ], diffused reflectance and FT-IR spectroscopy [ 20 ], and gas chromatography [ 21 ]. The aim of the present study is to focus on further application of our

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characterization of the complete sample composition. Several methods, such as high-performance thin layer chromatography (HPTLC) [ 15–18 ], gas chromatography (GC) [ 19–21 ], capillary electrophoresis (CE) [ 22–24 ], infrared spectroscopy (IR) [ 25 ], nuclear

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chromatography–mass spectrometry (LC–MS), gas chromatography–mass spectrometry (GC–MS), lipid raft stationary phase chromatography (LRSC), and capillary electrophoresis (CE) [ 18 – 22 ]. However, there has been no relevant report of qualitative assay of the

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