Data/hora: 09/06/2024 01:16:32

Provedor de dados: | 27
País: | Belgium
Título: | Comparative study of different wet mineralisation digestion methods for the measurement of total mercury in biological samples
Autores: | Dehairs, F.A.; Decadt, G.; Baeyens, W.F.J.
Data: | 1982
Ano: | 1982
Palavras-chave: | Digestion; Mercury; Nutrients (mineral).
Resumo: | Three botanical substrates and one milkpowder were mineralised and digested by the following methods in order to measure their total mercury content:  (1) HF/HNO&lt;sub&gt;3&lt;/sub&gt;-KMnO&lt;sub&gt;4&lt;/sub&gt;; (2) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;-KMnO&lt;sub&gt;4&lt;/sub&gt;; (3) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;- H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt;; (4) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;-UV irradiation/KMnO&lt;sub&gt;4&lt;/sub&gt;; (5) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;/V&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;5&lt;/sub&gt;-catalyst KMnO&lt;sub&gt;4&lt;/sub&gt; and (6) H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;/HNO&lt;sub&gt;3&lt;/sub&gt;/V&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;5&lt;/sub&gt;-catalyst H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt;. Of these methods (1) and (5) yield similar results and produce relative standard deviation values between 0.8 and 7.6. Method (5) is the faster of the two. No interferences with the detection of Hg were observed.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3380
Fonte: | %3Ci%3EAnalusis+10%288%29%3C%2Fi%3E%3A+373-376
Fonte: | info:eu-repo/semantics/restrictedAccess