STABILITY OF ARSENIC DURING SOIL TREATMENT AND STORAGE

There are many studies in the area of identifying and measuring arsenic (As) and its species in soil samples. However, stability of total As, As(V) and As(III) during sample drying and storage has received little attention. The present study evaluates the stability of total As, As(V) and As(III) in...

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Autores principales:	VARGAS,CRISTIAN, QUIROZ,WALDO, BRAVO,MANUEL, NEAMAN,ALEXANDER
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2015
Materias:	arsenic speciation soil storage stability
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072015000300015
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spelling	oai:scielo:S0717-970720150003000152015-12-04STABILITY OF ARSENIC DURING SOIL TREATMENT AND STORAGEVARGAS,CRISTIANQUIROZ,WALDOBRAVO,MANUELNEAMAN,ALEXANDER arsenic speciation soil storage stability There are many studies in the area of identifying and measuring arsenic (As) and its species in soil samples. However, stability of total As, As(V) and As(III) during sample drying and storage has received little attention. The present study evaluates the stability of total As, As(V) and As(III) in four soils with differing agricultural uses and physicochemical properties. Moisture elimination conditions were evaluated, i.e. lyophilization for 1 day vs. drying at 50°C for 3 days, along with different storage conditions, i.e. room temperature for 2 days vs. -20°C for 2 days. The results show that the recovered levels of native As(V) and As(III) are highest using lyophilization and storage at -20°C. Under these optimal conditions, total As content and the levels of As(V) and As(III) remain stable up to 10 days of storage with an error of ±20%.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.60 n.3 20152015-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072015000300015en10.4067/S0717-97072015000300015
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	arsenic speciation soil storage stability
spellingShingle	arsenic speciation soil storage stability VARGAS,CRISTIAN QUIROZ,WALDO BRAVO,MANUEL NEAMAN,ALEXANDER STABILITY OF ARSENIC DURING SOIL TREATMENT AND STORAGE
description	There are many studies in the area of identifying and measuring arsenic (As) and its species in soil samples. However, stability of total As, As(V) and As(III) during sample drying and storage has received little attention. The present study evaluates the stability of total As, As(V) and As(III) in four soils with differing agricultural uses and physicochemical properties. Moisture elimination conditions were evaluated, i.e. lyophilization for 1 day vs. drying at 50°C for 3 days, along with different storage conditions, i.e. room temperature for 2 days vs. -20°C for 2 days. The results show that the recovered levels of native As(V) and As(III) are highest using lyophilization and storage at -20°C. Under these optimal conditions, total As content and the levels of As(V) and As(III) remain stable up to 10 days of storage with an error of ±20%.
author	VARGAS,CRISTIAN QUIROZ,WALDO BRAVO,MANUEL NEAMAN,ALEXANDER
author_facet	VARGAS,CRISTIAN QUIROZ,WALDO BRAVO,MANUEL NEAMAN,ALEXANDER
author_sort	VARGAS,CRISTIAN
title	STABILITY OF ARSENIC DURING SOIL TREATMENT AND STORAGE
title_short	STABILITY OF ARSENIC DURING SOIL TREATMENT AND STORAGE
title_full	STABILITY OF ARSENIC DURING SOIL TREATMENT AND STORAGE
title_fullStr	STABILITY OF ARSENIC DURING SOIL TREATMENT AND STORAGE
title_full_unstemmed	STABILITY OF ARSENIC DURING SOIL TREATMENT AND STORAGE
title_sort	stability of arsenic during soil treatment and storage
publisher	Sociedad Chilena de Química
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072015000300015
work_keys_str_mv	AT vargascristian stabilityofarsenicduringsoiltreatmentandstorage AT quirozwaldo stabilityofarsenicduringsoiltreatmentandstorage AT bravomanuel stabilityofarsenicduringsoiltreatmentandstorage AT neamanalexander stabilityofarsenicduringsoiltreatmentandstorage
_version_	1718445540195172352

STABILITY OF ARSENIC DURING SOIL TREATMENT AND STORAGE

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