CAJ | 학술논문

建立了碳18键合硅胶柱-流动注射-电感耦合等离子体质谱(C18-FI-ICP/MS)联用系统。对螯合反应的pH，碳18柱的尺寸和填充松紧度，洗脱液中甲醇含量及洗脱液流速等进行了优化选择。联用系统已成功地应用于实际样品的在线富集分离分析。对Cd、 Pb、 Co、 Ni和Zn 5种元素的检测限(3σ)分别为0.03、0.09、0.1、0.1、0.3 μg/L, 6次测定海水的RSD分别为6.8%、3.4%、1.3%、2.6%、0.5%，标准加入方法的回收率分别为91.3%、95.1%、100.4%、100.3%、95.2%。
건립료탄18건합규효주-류동주사-전감우합등리자체질보(C18-FI-ICP/MS)련용계통。대오합반응적pH，탄18주적척촌화전충송긴도，세탈액중갑순함량급세탈액류속등진행료우화선택。련용계통이성공지응용우실제양품적재선부집분리분석。대Cd、 Pb、 Co、 Ni화Zn 5충원소적검측한(3σ)분별위0.03、0.09、0.1、0.1、0.3 μg/L, 6차측정해수적RSD분별위6.8%、3.4%、1.3%、2.6%、0.5%，표준가입방법적회수솔분별위91.3%、95.1%、100.4%、100.3%、95.2%。
An online enrichment-separation system of C18 and inductively coupled plasma-mass spectrometry (ICP/MS) with flow injection （C18-FI-ICP/MS） was established for the determination of trace heavy metals in seawater. The optimized experimental parameters including pH，C18 column，concentration of methol in elute and the velocity of elute were investigated. This system was applied to the online preconcentration , separation and determination of trace heave metals in seawater samples successfully. The detection limit　(3σ) for Cd, Pb, Co, Ni and Zn was 0.03, 0.09, 0.1, 0.1, 0.3 μg/L respectively. The RSD of Cd, Pb, Co, Ni, and Zn for six measurements of seawater was 6.8%，3.4%，1.3%，2.6%，0.5%，respectively. The accuracy was verified with spiked recovery test. The recovery for five elements was 91.3%，95.1%，100.4%，100.3%，95.2%, respectively.