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首页> 外文期刊>Bulletin of the Chemical Society of Japan >Application of Supported Liquid Membranes in the Multi-Residue Extraction of Aminoglycoside Antibiotics in Milk and Urine
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Application of Supported Liquid Membranes in the Multi-Residue Extraction of Aminoglycoside Antibiotics in Milk and Urine

机译：支撑液膜在牛奶和尿液中氨基糖苷类抗生素多残留提取中的应用

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摘要

A supported liquid membrane has been used as a sample clean-up and/or enrichment technique in the recovery of a mixture of aminoglycoside compounds from cow's milk and urine.The aminoglycoside compounds studied include,neomycin,gentamycin(mainly gentamycin C_(1a)),and streptomycin.The supported liquid membrane(SLM)used to trap these compounds consisted of(1:1)1-decanol:n-undecane.Several factors affecting the extraction efficiencies during SLM enrichment,such as donor and acceptor phases pHs,were studied.High performance liquid chromatography coupled to a positive ion electrospray-mass spectrometer was used as a detection method for these antibiotic compounds with their minor structural components.The extraction efficiencies obtained after SLM enrichment ranged between 60-90% for milk samples and 80-~100% for urine matrices.The detection limits obtained from urine was 0.23 mug L~(-1)for neomycin,0.31 mugL~(-1)for gentamycin,and 0.16mugL~(-1)for streptomycin and from cow's milk were 0.34mugL~(-1)for neomycin,0.42mugL~(-1)for gentamycin,and 0.20ngL~(-1)for streptomycin.
机译：从牛奶和尿液中回收氨基糖苷类化合物的混合物时，已使用支撑的液膜作为样品净化和/或富集技术。研究的氨基糖苷类化合物包括新霉素，庆大霉素（主要是庆大霉素C_（1a））。用于捕获这些化合物的支撑液膜（SLM）由（1：1）1-癸醇：正十一烷组成。影响SLM富集过程中萃取效率的几个因素，例如供体和受体相pH高效液相色谱结合阳离子电喷雾质谱仪作为这些抗生素化合物的微量结构检测方法，SLM富集后牛奶样品的提取效率在60％到90％之间，而SLM浓缩后的提取效率在80％到80％之间。尿液基质的检出限为〜100％。新霉素的尿检出限为0.23杯L〜（-1），庆大霉素的检出限为0.31杯L〜（-1），链霉素和牛奶的检出限为0.16杯L〜（-1）。 0.3新霉素4mugL〜（-1），庆大霉素0.42mugL〜（-1），链霉素0.20ngL〜（-1）。

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