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Relação entre as massas úmida, seca e de cinza em materiais biológicos - uma ferramenta para amostragens em campo e análise de amostras

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Author(s): Vasconcellos Luisa Maria de Hollanda e | Lauria Dejanira da Costa | Silva Lucia Helena Costa | Taddei José Fernando

Journal: Química Nova
ISSN 0100-4042

Volume: 22;
Issue: 6;
Start page: 889;
Date: 1999;
Original page

Keywords: sampling | biological materials | percentage of water | ash

ABSTRACT
Little is known about the amount of water and ash in brazilian foodstuffs and plants. The relationships between fresh, dry and ash weight were determined in 40 different biological samples. It could be an important tool when one studies biological material containing low concentration of the chemical elements. This study address to determine these relationships and to provide the amount of biological material that one needs to collect. It aims to supply information that could be used to improve the detection limit, precision and accuracy of the analytical methodology utilized.

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