一种新的固态宁反应方法及其在油溶性氨基聚合物的量化中的应用
Ge Han1, Jing Yang1, Yajing Wei1
1SINOPEC Research Institute of Petroleum Processing Co. Ltd, No. 18 Xueyuan Road, Haidian District, Beijing 100083, China. zhuzhongpeng.ripp@sinopec.com.
概括
一种新的固态宁反应方法准确量化了汽油洗剂. 这种方法克服了传统方法的局限性,使得在各种工业应用中精确分析油溶性氨基聚合物成为可能.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 宁素反应是广泛用于氨基检测的方法.
- 由可溶于油的氨基聚合物组成的汽油洗剂对于燃料系统的维护至关重要.
- 这些聚合物的现有检测方法面临着局限性.
研究的目的:
- 开发一种简化和改进的定量方法来检测汽油洗剂.
- 为了克服传统的液态ninhydrin反应的局限性.
主要方法:
- 为了进行定量分析,开发了一种固态ninhydrin反应方法.
- 里叶变换红外光谱法 (FT-IR) 和里叶变换离子循环子子共振质谱法 (FT-ICR MS) 用于研究反应机制.
- 该方法被验证用于量化三种类型的汽油洗剂.
主要成果:
- 固态方法消除了对pH缓冲系统的需求,并允许更高的反应温度 (高达120°C).
- 高温有效地打破了分子内键,阻碍了反应.
- 该方法实现了25mgkg-1的最小可检测度,相对误差在15%内.
结论:
- 拟议的固态宁氨酸反应为量化油溶性氨基聚合物提供了一种强大而简单的方法.
- 该方法在分析涂料,粘合剂,表面活性剂和固化剂中的洗剂和类似化合物方面具有广泛的适用性.
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