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Reference type: Journal
Authors: Wang LQ, Zeng ZL, Su YJ, Zhang GK, Zhong XL, Liang ZP, He LM
Article Title: Matrix Effects in Analysis of β-Agonists with LC-MS/MS: Influence of Analyte Concentration, Sample Source, and SPE Type.
Publication date: 2012
Journal: Journal of Agricultural and Food Chemistry
Volume: 60
Issue: (25)
Page numbers: 6359-6363.
DOI: 10.1021/jf301440u

Abstract: The synergistic influences of analyte concentration, sample source, and solid-phase extraction (SPE) type on matrix effects in the multiresidue analyses of eight β-agonists with LC-ESI-MS/MS were evaluated. Porcine muscle and liver extracts and urine from diverse sources were purified by strong or mixed-mode cation exchange and molecularly imprinted polymer SPE cartridges, respectively. Three spiked concentrations (2, 10, and 20 ng/mL) of eight β-agonists in the purified matrices and the different sample sources were analyzed. The results show that for most β-agonists there are significant differences in matrix effects between analyte concentrations or sample sources (P < 0.05), whereas there is no significant difference in matrix effects between different SPE cartridges (P > 0.05). Results from main effects testing indicated that analyte concentration was the main effector.
Template and target information: β-agonists, ractopamine, RCT, clenbuterol, CLB, salbutamol, SAL, terbutaline, TER, cimaterol, CIM, fenoterol, FEN, clorprenaline, CLO, tulobuterol, TUL, penbuterol, PEN


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