CAJ | 학술논문

提出了流动注射离子交换在线分离富集-氢化物发生原子荧光光谱法测定铜合金中痕量锑的分析方法.设计了流动注射在线离子交换的流路和操作程序,优化了各项化学条件.采用717强碱性阴离子交换树脂吸附锑,并能有效消除铁、镍、铅等元素的干扰,也使大量基体元素铜与待测元素分离,锑在1.4 mol/L的HCl介质中上柱,选用2.0 mol/L的HNO_3作为洗脱剂.实现了氢化物发生原子荧光光谱法对铜合金中痕量锑的在线测定.方法操作简便、快速,环境污染小,线性范围为0.15～120 μg/L,相对标准偏差在3%～5%之间,检出限为0.05μg/L.方法应用于铜合金标准样品,结果与推荐值吻合.
제출료류동주사리자교환재선분리부집-경화물발생원자형광광보법측정동합금중흔량제적분석방법.설계료류동주사재선리자교환적류로화조작정서,우화료각항화학조건.채용717강감성음리자교환수지흡부제,병능유효소제철、얼、연등원소적간우,야사대량기체원소동여대측원소분리,제재1.4 mol/L적HCl개질중상주,선용2.0 mol/L적HNO_3작위세탈제.실현료경화물발생원자형광광보법대동합금중흔량제적재선측정.방법조작간편、쾌속,배경오염소,선성범위위0.15～120 μg/L,상대표준편차재3%～5%지간,검출한위0.05μg/L.방법응용우동합금표준양품,결과여추천치문합.
A method for the determination of trace antimony in copper by flow injection on-line ion-exchange separation and enrichment-hydride generation atomic fluorescence spectrometry is suggested. The manifolds and operating program for ftlow injection on-line ion-exchange were designed and chemical conditions were optimized. Antimony complex was absorbed on strongly basic anion exchange resin 717 with 1. 4 mol/L HC1 as absorbent medium and 2. 0 mol/L HNO_3 for elution. The interference of co-existent elements (i-ron, nickel, lead, etc) was eliminated while antimony was enriched and was determined by hydride generation-atomic fluorescence spectrometry. The method is easy to operate and fast, and has lesser pollution to environment. The linear range is 0. 2-120μg/L and the RSD is 3%～5% with detection limit of 0. 05 μg/L. The results for determination of antimony in standard samples of copper alloys are satisfactory.