固体-液体提取与低温分离的农药残留物从Pequi纸的因数优化和验证使用高性能液体染色学与光二极管阵列探测器 (HPLC-DAD)
Marcelo O Ferreira1, João Pedro M Silva1, Mara R R Pereira1
1Institute of Exact and Natural Sciences of Pontal, Federal University of Uberlandia, Ituiutaba 38304-402, Brazil.
ACS omega
|May 12, 2025
概括
一种新的固体液体提取方法可以有效地检测pequi纸中的农药残留物. 优化提取显示出高回收率,在塞拉多果实样本中没有检测到残留物,这表明自然保护.
科学领域:
- 农业化学 农业化学
- 食品安全 食品安全
- 分析化学 分析化学
背景情况:
- 来自巴西塞拉多 (Cerrado) 的pequi果实至关重要,但由于密集农业而面临农药污染风险.
- 监测pequi纸中的农药残留物对于食品安全和消费者健康至关重要.
- 塞拉多地区常见的杀虫剂包括碳达,二和pyrifos,需要有效的检测方法.
研究的目的:
- 开发和验证一个简单,高效的固体液体提取方法,用于六个关键的农药残留在pequi纸.
- 使用实验设计优化提取参数,以实现最大限度的农药回收.
- 评估来自塞拉多生物群的pequi样本中有针对性的农药残留物的存在.
主要方法:
- 固体液体提取与低温分区被用于农药提取.
- 实验设计用于优化参数:样品质量 (500毫克),乙酸乙烯 (7.2毫升),水 (3.4毫升) 和冷时间 (3小时).
- 该方法在选择性,稳定性和量化极限方面得到了验证 (LOQ < 6.9 μg kg−1).
主要成果:
- 优化条件产生了高的农药回收率,从86%到118%不等.
- 单步提取方法表现出高效率和稳定性,不需要清理.
- 在来自Cerrado的战略地点的pequi纸样本中没有检测到农药残留物.
结论:
- 开发的方法是有效的提取和量化农药残留在pequi纸.
- 没有检测到的残留物表明,pequi水果的骨提供了对污染的自然保护.
- 这一发现支持了Pequi纸消费的安全性,即使是在农业活动较高的地区.
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