对婴儿护肤产品中塑料添加剂的疑似选
Xiaolin Liang1, Yao Cheng1, Shuqin Tang1
1College of Environment and Climate, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou 510632, China.
Environment international
|February 13, 2026
概括
塑料添加剂 (PA) 在婴儿护肤产品中很常见,发现了20多种新的化合物. 虽然暴露率很低,但PA的多样性引起了对婴儿健康的担忧.
科学领域:
- 环境化学环境化学
- 消费者产品安全 产品安全
- 分析化学 分析化学
背景情况:
- 婴儿护肤产品被广泛使用,但塑料添加剂 (PA) 的存在和影响尚未得到充分了解.
- 酸盐可以从包装中浸出或被纳入产品配方,对婴儿构成潜在的风险.
研究的目的:
- 在各种婴儿护肤产品中全面识别和量化塑料添加剂 (PA).
- 评估PA的化学多样性和度,包括新的转化产品.
- 评估与婴儿接触这些化学品相关的潜在风险.
主要方法:
- 分析了55种婴儿护肤产品,使用高分辨率质谱测量来选嫌疑人和量化目标.
- 121个PAs的识别和量化,其中使用参考标准确认了99个.
- 研究转化产品,如有机酸和紫外线稳定剂.
主要成果:
- 在婴儿产品中发现了121个PA,其中超过20个是首次报告的.
- 总PA度的中位数为3,220 ng/g,主要由非酸盐增塑剂占据主导地位.
- 确定了转化产品,表明了复杂的化学配置文件.
- 在不同的产品类型 (乳液,粉末,泡) 中观察到不同的PA配置.
结论:
- 婴儿护肤产品含有广泛的PA,包括新型化合物和转化产品.
- 虽然估计的婴儿暴露水平通常很低,但PA的频繁检测和多样性使人们担心累积和混合效应.
- 这项研究为评估婴儿护肤产品的安全性提供了关键数据,并强调需要在脆弱人群中持续监测化学物质暴露.
相关概念视频
01:27Conjugate Addition (1,4-Addition) vs Direct Addition (1,2-Addition)
4.4K
α,β-Unsaturated carbonyl compounds with two electrophilic sites, the carbonyl carbon, and the β carbon, are susceptible to nucleophilic attack via two modes: conjugate or 1,4-addition and direct or 1,2-addition.
Conjugate addition results in a thermodynamically stable product. The reaction retains the stronger C=O bond at the expense of the weaker C=C π bond. The process is slow as the β carbon is less electrophilic than the carbonyl carbon.
Direct addition products are...
Conjugate addition results in a thermodynamically stable product. The reaction retains the stronger C=O bond at the expense of the weaker C=C π bond. The process is slow as the β carbon is less electrophilic than the carbonyl carbon.
Direct addition products are...
4.4K
00:58Plasticity
3.1K
Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. If a material deforms irreversibly without increasing stress or load, then this is called ideal plasticity. For example, when a force is applied to an aluminum rod, it changes its shape, but it does not return to its original shape once the force is removed. Plastic deformation or ductility is thus a permanent deformation or change in the...
3.1K
01:31Plasticizers
379
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
379
01:21Plastic Behavior
598
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
598
01:14Plastic Deformations
485
It is essential to understand how structural members behave under plastic deformation when the bending stress exceeds the material's yield strength. This state of deformation permanently alters the shape of the member, in contrast to the linear elastic behavior observed before yielding. The strain at any point in the member is expressed in terms of maximum strain. Notably, the neutral axis, which coincides with the centroid during elastic bending, shifts away from the centroid under plastic...
485
01:19Plastic Deformations
480
Plastic deformation represents a fundamental concept in materials science, which explains the irreversible change in the shape of a material when it experiences stress beyond its elastic capability. This phenomenon is important in structural engineering, especially in designing and analyzing cantilever beams—structures that are securely fixed at one end and bear loads at the opposite end. When these beams are subjected to loads within their elastic range, they will return to their...
480