第 51 卷第 4 期 |  | Vol. 51 No. 4 | 2021 年 8 月 | Aug 2021 |
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所屬欄目:分析與測試
超高效液相色譜-串聯(lián)質(zhì)譜法同時(shí)檢測氟啶蟲(chóng)酰胺、呋蟲(chóng)胺及兩種代謝物在桃中的殘留量 |
曾利紅1,2,3,歐陽(yáng)宇迪1,2,歐曉明1,2,侯根連1,2,3,晏 姣1,2,3,歐 將1,2,3,梁貴平1,2,3,宋強勇1,2,3,聶春林1,2,3
(1. 湖南化工研究院有限公司 國家農藥創(chuàng )制工程技術(shù)研究中心,湖南 長(cháng)沙 410014;2. 農用化學(xué)品湖南省重點(diǎn)實(shí)驗室,湖南 長(cháng)沙 410014;3. 湖南化研院檢測技術(shù)有限公司,湖南 長(cháng)沙 410014) |
摘 要:建立了超高效液相色譜-串聯(lián)質(zhì)譜(UPLC-MS/MS)測定桃中氟啶蟲(chóng)酰胺、呋蟲(chóng)胺及代謝物殘留量的方法。樣品經(jīng)1%乙酸水溶液渦旋提取,采用電噴霧離子源正離子掃描,多反應監測(MRM)模式下,外標法定量。結果表明:方法在0.002~0.100 μg/mL范圍內線(xiàn)性良好,相關(guān)系數(R2)>0.99;在0.05、0.8、4.0 mg/kg添加水平下四種農藥的平均回收率為80%~115%,相對標準偏差1%~6%,定量限均為0.05 mg/kg。 |
關(guān)鍵詞:UPLC-MS/MS;氟啶蟲(chóng)酰胺;呋蟲(chóng)胺及代謝物DN、UF;桃;殘留檢測 |
中圖分類(lèi)號:O657.7 文獻標識碼:A 文章編號:1009-9212(2021)04-0077-04 |
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Determination of Flonicamid, Dinotefuran and 2 Kinds of Metabolites in Peach by UPLC-MS/MS |
ZENG Li-hong1,2,3, OUYANG Yu-di1,2, OU Xiao-ming1,2, HOU Gen-lian1,2,3, YAN Jiao1,2,3, OU Jiang1,2,3, LIANG Gui-ping1,2,3, SONG Qiang-yong1,2,3, NIE Chun-lin1,2,3
(1. National Engineering Research Center for Agrochemicals, Hunan Research Institute of Chemical Industry, Changsha 410014, China; 2. Hunan Province Key Laboratory for Agrochemicals, Changsha 410014, China; 3. HRICI Test Co.,Ltd., Changsha 410014, China) |
Abstract:A method was established for the simultaneous determination of flonicamid, dinotefuran and metabolites residues in peach by UPLC-MS/MS. The sample was vortexed extraction with 1% acetic acid water, then detected by MS/MS eqipped with positive electrospray ionization(ESI+) in multiple reaction monitoring (MRM) mode and quantified by external standard method. The results showed that the limits of quantitation were 0.05 mg/kg; the correlation coefficient of 4 pesticides were higher than 0.99 in a concentration ranged from 0.002 μg/mL to 0.100 μg/mL. The mean spiked recoveries of 4 pesticides at 0.05, 0.8 and 4 mg/kg with spiked levels ranged from 80% to 115% at a relative standard deviations (RSD) between 1% and 6% |
Key words:UPLC-MS/MS; flonicamid; dinotefuran and metabolites DN, UF; peach; residue determination |
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基金項目:湖南省企業(yè)科技創(chuàng )新團隊支持計劃資助項目(海利新材料科技創(chuàng )新創(chuàng )業(yè)團隊)。
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作者簡(jiǎn)介:曾利紅(1987—),女,湖南醴陵人,工程師,碩士研究生,研究方向:農藥殘留檢測(E-mail:645470004@qq.com)。
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收稿日期: 2021-07-2
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