改性化石作为吸剂相,用于杆吸性提取
Natascha Amalio Teixeira1, Luis Fernando Amorim Batista1, Princys Schneider de Mira1
1Departamento de Química, Universidade Federal do Paraná, CP 19032, CEP 81531-980, Curitiba, PR, Brazil.
Analytica chimica acta
|March 2, 2025
概括
改性白 (Vt) 为水中新出现的污染物 (EC) 的和吸附提取 (SBSE) 提供了低成本的吸附剂. 这种方法可提供可靠的EC量化,如双甲和二二.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
背景情况:
- 表面水中的新出现的污染物 (EC) 构成风险,需要预先缩才能准确量化.
- 棒吸附提取 (SBSE) 是EC预缩的一个关键技术.
- 开发新型吸附材料对于有效的SBSE至关重要.
研究的目的:
- 开发和验证一种针对SBSE的修改过的米 (Vt) 吸附剂.
- 在地表水样本中测定双甲,二二,易布洛芬和三桑.
- 评估修改后的Vt吸附剂的性能和可重复使用性.
主要方法:
- 用基盐修饰的藻 (Vt) 被用作SBSE的吸附剂阶段.
- 优化条件包括样品pH值为4.0,以每分钟600转的速度120分钟,以及使用甲醇进行超声波溶解20分钟.
- 用二极管阵列检测 (LC-DAD) 的液体染色学进行了分析物量化.
主要成果:
- 该方法实现了线性范围从0.50到5.00μg L-1,R2>0.9480,以及116-177的丰富系数.
- 检测极限 (LOD) 在0.11至0.33μg L-1.1之间.
- 修改后的Vt吸附剂表现出良好的化学和机械耐药性,允许至少30次使用,没有记忆效应,回收率在42.0%至128.0%之间.
结论:
- 修改后的Vt是一种简单,低成本,有效的吸附剂,用于ECs的SBSE.
- 分析参数非常合适,即使使用LC-DAD.
- 这是SBSE修改Vt的首次报告使用,这表明其他分析物的潜力.
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