Simultaneous Determination of Nine Trace Organic Amines and Six Trace Inorganic Cations in Atmospheric Fine Particulate Matter by Ion Chromatography
10.19756/j.issn.0253-3820.241319
- VernacularTitle:离子色谱法同时测定大气细颗粒物中9种痕量有机胺和6种痕量无机阳离子
- Author:
Jing-Jia SHI
1
;
Zhao-Qing CAI
;
Jia CHEN
;
Hui-Jun ZOU
;
Tian TIAN
;
Zheng WANG
Author Information
1. 上海应用技术大学材料科学与工程学院,上海 201418;中国科学院上海硅酸盐研究所,无机材料分析测试中心,上海 201899
- Keywords:
Atmosphere fine particulate matter;
Ion chromatography;
Organic amines;
Cations;
Trace analysis
- From:
Chinese Journal of Analytical Chemistry
2025;53(1):124-132
- CountryChina
- Language:Chinese
-
Abstract:
An ion chromatography method was developed for detection of nine kinds of trace organic amines(Methylamine,dimethylamine,trimethylamine,ethylamine,diethylamine,triethylamine,n-propylamine,n-butylamine,and ethanolamine)and six kinds of trace water-soluble inorganic cations(Li+,Na+,NH4+,K+,Ca2+,and Mg2+)in atmospheric fine particulate matter(PM2.5)in this wok.Various chromatographic columns(IonPac CS12,IonPac CS17 and IonPac CS19)were compared in terms of their separation efficiency for target analytes,and IonPac CS19 column was ultimately selected.Through meticulous optimization of the column temperature,a low temperature condition of 20℃was found to achieve the highest separation efficiency(All are above 1),effectively separating all 15 kinds of target analytes.Under the optimal analytical conditions inculding methanesulfonic acid(MSA)as eluent,100 μL of injection volume,column temperature at 20℃and eluent at flow rate of 1 mL/min,the detection limits of this method ranged from 0.05 to 7.15 μg/L,the quantification limits were 0.16-23.82 μg/L,and the spiking recoveries were 84%-105%.The proposed method exhibited high accuracy and excellent reproducibility,and was suitable for concurrent analysis and measurement of organic amines and water-soluble inorganic cations in PM2.5.
