18</sub> 色譜柱( 50mm×2.1mm , 1.8μm )進(jìn)行分離,串聯(lián)質(zhì)譜進(jìn)行檢測,外標(biāo)法定量。結(jié)果表明,雙丙酚丁濃度在 2~ 100μgL<sup>-1</sup> 線性關(guān)系良好,相關(guān)系數(shù) R<sup>2</sup> 均在0.999以上;方法檢出限均為 0.02mgkg<sup>-1</sup> ,定量限均為 0.05mgkg<sup>-1</sup> :加標(biāo)回收率為 82.2%~94.3% ,相對(duì)標(biāo)準(zhǔn)偏差均小于 10% 。該方法專屬性好,靈敏度高,適用范圍廣,可用于上述產(chǎn)品中雙丙酚丁化合物的定性和定量測定。-龍?jiān)雌诳W(wǎng)" />

特黄三级爱爱视频|国产1区2区强奸|舌L子伦熟妇aV|日韩美腿激情一区|6月丁香综合久久|一级毛片免费试看|在线黄色电影免费|国产主播自拍一区|99精品热爱视频|亚洲黄色先锋一区

基于高效液相色譜-串聯(lián)質(zhì)譜法檢測壓片糖果固體飲料、代用茶和果凍中雙丙酚丁方法的研究

  • 打印
  • 收藏
收藏成功


打開文本圖片集

Research on the Detection of Dipropofol Butyl in Tablet Candy, Solid Drinks, Substitute Tea and Jelly Based on High Performance Liquid Chromatography-Tandem Mass Spectrometry

WANG Pengxiang (Suzhou Food and Drug Supervision Technology Service Center, Suzhou 234000, China)

Abstract: This paper establishes a method for the detectionof dipropofol butyl in tabletcandies,solid beverages, substitute tea and jelly by high performance liquid chromatography-tandem mass spectrometry. Methanol was used as the extractant toextractthetarget substances inpressed candy,solid beveragesand substitute tea respectively.The substanceswere separated by a C18 chromatographic column ( 50mm×2.1 mm, 1.8μm ),detectedbytandemmass spectrometryand quantified bythe extermal standard method.Theresults show that the concentration of dipropofol butyl has a good linear relationship within the range of 2μg?L-1 to 100μg?L-1. ,and the correlation coefficient R2 is all above 0.999. The method detection limits were all 0.02mg.kg-1 ,and the quantification limits were all 0.05mg?kg-1 The recovery rate of spiked products ranged from 82.2% to 94.3% , and the relative standard deviations were all less than 10% . This method has good specificity, high sensitivity and wide application range,and can be used for the qualitative and quantitative determination of dipropofol butyl compound in the above-mentioned products.

Keywords: dipropofol butyl; high performance liquid chromatography tandem mass spectrometry; illegal additives

近年來,隨著人們生活水平的不斷提高,宣稱具有減肥功效的食品發(fā)展迅猛。(剩余3605字)

目錄
monitor