使用新设计的反应剂衍生出四毒素导致了传统的反相液态染色学
Shimba Kawasue1, Kyoko Kuniyoshi1, Masashi Uema1
1National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki 210-9501, Japan.
Toxins
|June 26, 2024
概括
一种新方法使用NBD-H-PBA的列前导化来快速分析食品中的四极毒素 (TTX). 这种方法克服了现有方法的局限性,为气球鱼中毒爆发提供了敏感的检测极限.
科学领域:
- 分析化学 分析化学
- 食品安全 食品安全
- 毒理学 毒理学 毒理学
背景情况:
- 铁毒素 (TTX) 导致气球鱼中毒,在东亚/东南亚普遍存在.
- 现有的TTX分析方法 (HPLC,LC-MS/MS,HILIC-MS/MS) 有复杂的设置,试剂去除问题和缓慢平衡等缺点.
- 鼠标生物测试正在被用于TTX检测的仪器方法所取代.
研究的目的:
- 开发一种快速有效的TTX分析方法,使用前列衍生和逆相 (RP) HPLC.
- 克服当前TTX检测技术的局限性,用于分析疫情样本,包括食品残留物.
主要方法:
- 设计和合成了一种新的衍生试剂,NBD-H-PBA,针对TTX的vic-diol部分.
- 使用RPHPLC与紫外线检测用于分析前列衍生后的TTX.
- 在鱼肉样本中确定TTX的检测极限 (LOD).
主要成果:
- 该NBD-H-PBA试剂通过其副二醇部分 (C6和C11) 快速衍生TTX,形成一个乙烯.
- 衍生型TTX显示了适合RPHPLC保留和UV检测的疏水性.
- 在鱼肉样本中达到TTX的0.06 mg/kg的检测极限.
结论:
- 使用NBD-H-PBA和RP HPLC-UV的新型列前衍生方法对TTX分析有效.
- 该方法为食品样本中评估TTX提供了一个快速而敏感的替代方案,有助于食品安全和疫情调查.
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