Abstract：
:Polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) were determined in some additives widely employed as binder and anti-caking agents in feedstuffs, such as kaolin, bentonite, zeolite, etc. with an special attention on sepiolite samples. Owing to their physico-chemical properties, the little information of these materials reported in the literature, the variability of PCDDs/PCDFs found in a preliminary evaluation and the absence of reference materials highlighted further research needed. Therefore, an extensive study on the analytical procedures based on the classical methods was performed with sepiolite samples. The study includes evaluation of reproducibility and repeatibility. To this end, a series of intra-day and nine inter-day analysis were made. The methodolgy was also assessed against the sample size and series of 12.5, 25, 37.5 and 50 g were analyzed. In all cases, the results confirmed good correlation with the parameters evaluated.
journal_name
Chemospherejournal_title
Chemosphereauthors
Abad E,Llerena JJ,Sauló J,Caixach J,Rivera Jdoi
10.1016/s0045-6535(01)00274-0subject
Has Abstractpub_date
2002-03-01 00:00:00pages
1417-21issue
9-10eissn
0045-6535issn
1879-1298pii
S0045-6535(01)00274-0journal_volume
46pub_type
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