超高效液相色譜-串聯(lián)質(zhì)譜法測(cè)定雞肉中磺胺甲基嘧啶殘留量方法優(yōu)化
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摘 要:本文通過超高效液相色譜-串聯(lián)質(zhì)譜法,采用電噴霧電離及質(zhì)譜多反應(yīng)監(jiān)測(cè)模式,在不同碰撞能量下測(cè)定雞肉中磺胺甲基嘧啶殘留量。結(jié)果表明,雞肉中磺胺甲基嘧啶殘留量在碰撞能量為15 V下,具有良好的線性關(guān)系,定量限為1.0 μg·kg-1,加標(biāo)回收率在93.3%~99.1%。
關(guān)鍵詞:碰撞能量;磺胺甲基嘧啶;超高效液相色譜-串聯(lián)質(zhì)譜法
Optimization of the Method for the Determination of Sulfamethazine Residues in Chicken by UHPLC-MS/MS
LI Qihui, SUN Yuying, QIAN Qi
(National Light Industry Food Quality Supervision and Testing Nanjing Station, Nanjing 211816, China)
Abstract: In this paper, the residues of sulfamethazine in chicken were determined by ultra high performance liquid chromatography-tandem mass spectrometry in ESI+ and MRM modes at different collision energies. The results showed that the residues of sulfamethazine in chicken had a good linear relationship under the collision energy of 15 V, the limit of quantification was 1.0 μg·kg-1, and the recovery rate of standard addition was 93.3%~99.1%.
Keywords: collision energy; sulfamethazine; ultra high performance liquid chromatography-tandem mass spectrometry
磺胺類藥物是目前被廣泛應(yīng)用于畜禽抗感染治療的重要藥物之一,具有高效、毒性低、便于使用等特點(diǎn),可預(yù)防和治療一些動(dòng)物疾病,以促進(jìn)動(dòng)物的生長(zhǎng)。(剩余3059字)