A NEW METHOD FOR DETERMINATION OF RARE-EARTH ELEMENTS VAPORIZED IN GRAPHITE-FURNACE WITH A POLYTETRAFLUOROETHYLENE SLURRY FLUORINATING REAGENT BY INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION-SPECTROMETRY

被引：11

作者：

HUANG, M ^{[1
]}

JIANG, ZC ^{[1
]}

ZENG, Y ^{[1
]}

机构：

[1] WUHAN UNIV,DEPT CHEM,WUHAN 430072,PEOPLES R CHINA

来源：

ANALYTICAL SCIENCES | 1991年 / 7卷 / 05期

关键词：

RARE EARTH ELEMENT DETERMINATION; FLUORINATING VAPORIZATION; INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROSCOPY; GRAPHITE FURNACE; POLYTETRAFLUOROETHYLENE SLURRY;

D O I：

10.2116/analsci.7.773

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new method based on fluorinating vaporization from a graphite furnace for ICP-AES by using a polytetrafluorethylene slurry as a fluorinating reagent has been established to determine rare earth elements which are easily formed into refractory carbides. The detection limits were within the range 10(-10) to 10(-12) g, and were typically two orders of magnitude better than that obtained with conventional electrothermal vaporization (ETV)-ICP-AES. No memory effect was observed. The relative standard deviation was better than 5%. Some factors which affected fluorinating vaporization are also discussed. It is concluded that ETV-ICP-AES is superior to GFAAS when the carbide-forming elements are determined.

引用

页码：773 / 778

页数：6

共 16 条

[1] ANALYSIS OF URINE USING INDUCTIVELY-COUPLED PLASMA EMISSION-SPECTROSCOPY WITH GRAPHITE ROD ELECTROTHERMAL VAPORIZATION [J].