气相色谱-质谱联用分散固相萃取-活性炭球净化法测定鱼饲料样品中双酚残留。

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Kalpana Talari, Sai Krishna Ganji, Raja Rajeswari Tiruveedula
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引用次数: 0

摘要

双酚类物质是一种众所周知的内分泌干扰物,通常用于食品包装和储存材料,它经常与包装在其中的多种食品接触。鱼饲料和其他饲料中的双酚类物质对水生生物有害。食用这类海洋食品是有害的。因此,需要对水产品饲料中是否存在双酚类物质进行验证。本研究的重点是建立和验证一种快速、选择性和灵敏度高的分散固相萃取法定量鱼饲料中11种双酚类物质的方法,该方法采用优化量的活性炭球清洗,N, o -二(三甲基硅基)三氟乙酰胺进行硅基化,并用气相色谱-质谱法进行分析。在仔细调整影响分析物回收率的各种参数后,对新方法进行了严格的测试和验证。检测限为0.5 ~ 5 ng/g,定量限为1 ~ 10 ng/g,加样回收率为95 ~ 114%。在相对标准偏差方面,发现日内和日内精度小于11%。该方法在浮沉鱼饲料中得到了有效的应用。结果表明:双酚A浓度最高,其次是双酚TMC,沉料双酚M浓度分别为256.10、159.01和168.82 ng/g,沉料双酚M浓度分别为88.04、200.79和98.03 ng/g。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Gas chromatography-mass spectrometric determination of bisphenol residues by dispersive solid phase extraction followed by activated carbon spheres cleanup from fish feed samples.

Bisphenols are known endocrine disruptors commonly utilized in food packaging and storage materials, which frequently come into touch with multiple food products packed in them. The bisphenols in fish feed and other feed materials for aquatic organisms are harmful. The consumption of such marine foods is hazardous. Hence, the feed of aquatic products needs to be verified for the presence of bisphenols. The present study was focused on developing and validating a rapid, selective, and sensitive method to quantify 11 bisphenols from the fish feed with dispersive solid-phase extraction, which was cleaned by an optimized amount of activated carbon spheres and silylated by N,O-bis(trimethylsilyl)trifluoro acetamide and analyzed by gas chromatography-mass spectrometry. The new method was rigorously tested and verified after carefully tuning various parameters affecting analyte recovery. Limit of detection (LOD) were set at 0.5-5 ng/g and limit of quantification (LOQ) at 1-10 ng/g, respectively, resulting in 95-114% recoveries. Interday and intraday precisions in terms of relative standard deviation were found to be less than 11%. The proposed approach was effectively applied in floating and sinking fish feeds. The obtained results showed that higher concentration of bisphenol A, followed by bisphenol TMC, and bisphenol M at a concentration of 256.10, 159.01, and 168.82 ng/g in floating feed and 88.04, 200.79, and 98.03 ng/g in sinking feed samples, respectively.

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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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