VALENCE-STATE SPECIATION OF SULFUR BY X-RAY-FLUORESCENCE SPECTROMETRY AND KALMAN FILTERING

被引：11

作者：

LI, ZL

YU, RQ

SHI, LM

JUN, X

ZHANG, M

WANG, QG

机构：

[1] ACAD SINICA,INST CHEM MET,BEIJING 100080,PEOPLES R CHINA

[2] UNIV SCI & TECHNOL CHINA,DEPT MODERN CHEM,HEFEI 230026,PEOPLES R CHINA

[3] ACAD SINICA,INST ENVIRONM CHEM,BEIJING 100080,PEOPLES R CHINA

来源：

ANALYTICA CHIMICA ACTA | 1991年 / 248卷 / 01期

关键词：

X-RAY FLUORESCENCE SPECTROMETRY; KALMAN FILTER; SULFUR VALENCE STATES;

D O I：

10.1016/S0003-2670(00)80893-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Dual-crystal, high-resolution x-ray fluorescence spectrometry produces overlapped peaks for the four valence states of sulfur [S(VI), S(IV), S(0) and S(-II)]. Spectra were recorded from 110.300-degrees to 111.295-degrees, and 200 data were collected but 131 points selected, and the Kalman filtering algorithm was applied to data processing for sulfur speciation. For 11 mixtures of sulfate, sulfite, sulfur and sulfide, the recoveries for each state were in the range 92-105%.

引用

页码：257 / 261

页数：5

共 29 条

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