【摘要】 建立了 FI-UN-ICP/AES 联用技术,用所发展技术进行了头发中多种微量元素的同时测定。与常规气动雾化器 ICP/AES 技术相比,尽管是用流动注射方法引入样品,测定的检出限仍有较大改进(2—23倍)。多次注射测定的再现性(RSD)在0.6—5.0%范围内。同时进行了标准加入回收试验,获得了很好的结果(90—110%)。更多还原

【Abstract】 The hyphenated technique of Flow Injection(FI)-Ultrasonic Nebulization(UN)and inductively coupled plasma atomic emission spectroscopy(ICP-AES)has been established in the present work,which was applied to the simultaneous determination of multi-element in human hair.Compared with the traditional sample introduction technique the detection limits may be im- proved greatly. The repeatabilities of the multi injection(RSD)are in the range of 0.6 to 5%.The recoveries from the standard addition to the sample ranged from 90 to 110%.更多还原