Closed-Vessel Conductively Heated Digestion System for the Elemental Analysis of Agricultural Materials by High-Resolution Continuum Source Flame Atomic Absorption Spectrometry (HR-CS FAAS)

Closed-Vessel Conductively Heated Digestion System for the Elemental Analysis of Agricultural Materials by High-Resolution Continuum Source Flame Atomic Absorption Spectrometry (HR-CS FAAS)

Novel applications of the closed-vessel conductively heated digestion system (CHDS) are proposed to digest biomass, biochar, oyster shell flour, bone meal and swine manure for the determination of Ca, K, Mg, Na, Cu, Fe, Mn, and Zn by high-resolution continuum source flame atomic absorption spectrome...

Full description

Saved in:
Bibliographic Details
Published in:Analytical letters Vol. 56; no. 15; pp. 2443 - 2456
Main Authors: Traversa, Leonardo Clemente, Santiago, João Victor Biagi, de Oliveira, Evilim Martinez, Ferreira, Edilene Cristina, Virgilio, Alex, Gomes Neto, José Anchieta
Format: Journal Article
Language:English
Published: Abingdon Taylor & Francis 13-10-2023
Taylor & Francis Ltd
Subjects:
Absorption spectroscopy
Agriculture materials
Analytical chemistry
Atomic absorption analysis
Biomass
Calcium
closed-vessel conductively heated digestion system (CHDS)
Copper
Digestion
High resolution
high-resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS)
Iron
Magnesium
Manganese
Manures
Scientific imaging
Soil analysis
Soils
Spectrometry
Swine
Vessels
Zinc
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Novel applications of the closed-vessel conductively heated digestion system (CHDS) are proposed to digest biomass, biochar, oyster shell flour, bone meal and swine manure for the determination of Ca, K, Mg, Na, Cu, Fe, Mn, and Zn by high-resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS). The performance of the digestion method using 14 and 7 mol L −1 HNO 3 was checked by analyzing soil, rock, and plant certified reference materials (CRMs). For comparative purposes, all samples were analyzed after microwave-assisted digestion (MW-AD). Results obtained for most analytes by the closed-vessel conductively heated digestion system (CHDS) were in agreement with certified values and those attained by the comparative digestion method. The use of 7 mol L −1 HNO 3 furnished lower blanks for most analytes and was effective to prepare challenging samples as biomass, biochar, shell and bone meal, swine manure, plants, soil, phosphate rock, and may be a good alternative for elemental determinations using most analytical techniques that rely on solution-based sample introduction systems. The detection limits (dry basis, mg kg −1 ) for Ca, Cu, Fe, K, Mg, Mn, Na, and Zn were 3, 0.4, 4, 4, 0.7, 0.4, 3, and 2, respectively. The mean relative standard deviations were close to 4.9% for closed-vessel conductively heated digestion (CHDS) and 5.9% for microwave-assisted digestion (MW-AD).
ISSN:0003-2719
1532-236X
DOI:10.1080/00032719.2023.2174133