使用UV-Vis光谱法测量土壤中纳米/微塑料度的新简单方法,具有最佳波长选择
Kyouhei Tsuchida1, Yukari Imoto2, Takeshi Saito2
1National Institute of Advanced Industrial Science and Technology (AIST) Central7, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8567, Japan; Department of Resources and Environmental Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan.
Ecotoxicology and environmental safety
|May 28, 2024
概括
一种新的光谱仪方法简化了在土壤中测量纳米/微塑料 (N/MPs) 的方法. 该技术使用特定的波长来准确量化土壤悬浮中的N/MP度,克服土壤颗粒的干扰.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 在土壤中测量纳米/微塑料 (N/MP) 是具有挑战性的,因为过网尺寸和仪器分辨率的限制.
- 土壤颗粒和浸出组件可以干扰N/MP吸收度测量.
- 在土壤中量化N/MP的现有方法通常是复杂和耗时的.
研究的目的:
- 开发一种简单有效的基于光谱仪的方法来量化土壤中的N/MPs.
- 在土壤悬浮中确定N/MP测量的最佳波长组合.
- 建立可靠的校准曲线来估计土壤中的N/MP度.
主要方法:
- 使用光谱相仪进行N/MP度测量,以聚乙烯颗粒为模型.
- 测量了两个波长的吸收率,确定220-260nm和280-340nm为各种土壤的合适范围.
- 通过将土壤悬浮中的N/MP度与土壤中的N/MP含量相关联,开发了一个校准曲线.
主要成果:
- 一种特定的波长组合 (220-260nm和280-340nm) 在不同类型的土壤中有效测量N/MP.
- 在土壤悬浮中的N/MP度和土壤中的N/MP含量之间建立了线性关系.
- 开发的方法允许准确估计土壤中的N/MP度.
结论:
- 拟议的光谱仪方法为土壤中N/MP量化提供了一个简单的方法.
- 这种方法有可能在分析各种土壤矩阵中的N / MPs中得到广泛应用.
- 进一步的研究应该包括测试其他N/MP材料,如聚乙烯和聚乙烯二甲.
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