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SPE-LC-MS/MS测定快餐纸袋中7种全氟有机物
液相色谱-串联质谱 快餐纸袋 全氟有机物 检测
2016/12/22
建立了快餐纸袋中7种全氟有机物(全氟己酸、全氟庚酸、全氟辛酸、全氟壬酸、全氟十二烷酸、全氟十四烷酸、全氟辛烷磺酸盐)残留的固相萃取-液相色谱串联质谱(SPE-LC-MS/MS)分析方法。样品以1%甲酸-甲醇溶液超声提取,经C18固相萃取小柱净化,以0.1%甲酸乙腈-2mmol/L乙酸铵水溶液为流动相,经C8反相色谱柱分离,采用多反应监测(MRM)负离子模式检测,外标法定量。阴性样品添加实验表明:方...
Phytoestrogens in bovine plasma and milk – LC-MS/MS analysis
isoflavone plasma milk LC-MS/MS
2014/2/27
Phytoestrogens belong to a group of polyphenolic plant metabolites which induce biological responses, based on their structural similarity to 17β-estradiol. In order to investigate the relationship be...
Quantification of Light-Induced Glycoalkaloids, α-Solanine and α-Chaconine, in Four Potato Cultivars(Solanum tuberosum L.)Distributed in Japan by LC/MS
solanum tuberosum potato glycoalkaloids
2009/6/18
The major glycoalkaloids, α-solanine and α-chaconine, in potato tubers were determined by LC/ESI-MS. The average recoveries from spiked samples by the method used in this study were more than 94% with...