CAJ | 학술논문

基于有孔壳层隔绝纳米粒子增强拉曼光谱技术,建立了一种快速便捷、高灵敏的芥子气及其相关物现场检测新方法。加入0.1 mol/L MgSO4可诱导纳米粒子有效团聚,形成多“热点”的拉曼散射,实现低至10μg/L芥子气的便携式拉曼光谱快速检测,线性范围为10~1000μg/L,分析增强因子约为1.1×106。本方法法直接应用于环境水样中微量芥子气的快速检测,回收率介于88%~114%之间。芥子气相关物(如2-氯乙基乙基硫醚、硫二甘醇、芥子亚砜和芥子砜)可得到有效区分。
기우유공각층격절납미입자증강랍만광보기술,건립료일충쾌속편첩、고령민적개자기급기상관물현장검측신방법。가입0.1 mol/L MgSO4가유도납미입자유효단취,형성다“열점”적랍만산사,실현저지10μg/L개자기적편휴식랍만광보쾌속검측,선성범위위10~1000μg/L,분석증강인자약위1.1×106。본방법법직접응용우배경수양중미량개자기적쾌속검측,회수솔개우88%~114%지간。개자기상관물(여2-록을기을기류미、류이감순、개자아풍화개자풍)가득도유효구분。
An on-site method for the determination of sulfur mustard ( SM) was developed based on pinhole shell-isolated nanoparticle-enhanced Raman spectroscopy. By using 0. 1 mol/L MgSO4 as effective agglomeration reagent, more Raman “hot spots” were induced, and thus a limit of detection for SM at 10 μg/L was achieved with a linearity of 10-1000 μg/L and an analytical enhanced factor of 1. 1×106. This method can be directly applied in the measurement of SM in environmental water samples with good sensitivity and reproducibility, and the standard addition recovery was between 88%-114%. Good differentiation of four SM related compounds, 2-chloroethyl ethylsulfide, thiodiglycol, bis-β-chloroethyl sulphoxide and bis-β-chloroethyl sulphone, was also obtained.