Microwave-assisted digestion with a single reaction chamber for mineral fertilizer analysis by inductively coupled plasma optical emission spectrometry

被引：6
|
作者：
Fioroto, Alexandre Minami [1 ]
Rodrigues Kelmer, Gislayne Aparecida [1 ]
Rodrigues Albuquerque, Luiza Gimenes [1 ]
Longo Cesar Paixao, Thiago Regis [1 ]
Oliveira, Pedro Vitoriano [1 ]
机构：
[1] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, BR-05508000 Sao Paulo, Brazil
来源：
SPECTROSCOPY LETTERS | 2017年 / 50卷 / 10期
关键词：
Diluted acids; inductively coupled plasma; microwave; mineral fertilizer; sample preparation; ATOMIC-ABSORPTION-SPECTROMETRY; TRACE-ELEMENTS; PHOSPHATE FERTILIZERS; LABORATORY VALIDATION; INORGANIC FERTILIZERS; SAMPLES; EXTRACTION; CHROMIUM; CADMIUM; ACID;
D O I：
10.1080/00387010.2017.1390766
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
A systematic approach is proposed to evaluate microwave-assisted digestion in a single reaction chamber for the simultaneous determination of elements in the mineral fertilizer and raw material by inductively coupled plasma optical emission spectrometry. A reference material was digested using 12 acid mixtures containing nitric, hydrochloric, orthophosphoric, hydrofluoric or boric acid. Principal components analysis was applied for data treatment. Three digestion procedures based on diluted acids exhibited the most accurate results, with relative errors for reference values ranging from -15% to +9%. Limits of quantification were in the range of 0.2mg cadmium kg(-1) up to 1000mg aluminum kg(-1.</SUP)
引用
收藏
页码：550 / 556
页数：7
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