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Homogenization and Bottling

The freeze-dried materials were sent to the Joint Research Centre of Ispra where they were ground using a mill equipped with zirconium dioxide balls. The ground materials were sieved using a vibrating stainless steel sieve. The [Pg.56]


The candidate mussel CRM was collected by the ENEA, Casaccia Research Centre (Rome, Italy). The sample freeze-drying was carried out at the Biostarters Company (Parma, Italy) and the homogenization and bottling were performed jointly by Ecoconsult (Gavirate, Italy) and the EC Joint Research Centre of Ispra (Italy). [Pg.70]

The sediment sample used in the second interlaboratory trial was collected in the River Besos, Spain. The material was sampled with a grab, air-dried, then sieved at 63 pm, homogenized and bottled. Homogeneity and stability studies of extractable trace metals were carried out and the material was found to be homogeneous and stable enough to be used in the intercomparison exercise [196]. [Pg.185]

This does not sound to be very complicated, but it certainly is not a trivial job. It requires special skills and sophisticated installations in order to process materials in a suitable form, especially matrix certified reference materials. Imagine a few thousand bottles of freeze-dried orange juice with demonstrated homogeneity and stability for metals content In addition... [Pg.292]

Stay of the water sample in the tubing. The bottles were packed in two polythene self-seal bags and stored at ambient temperature. Bottles were randomly selected during the bottling procedure for homogeneity and stability studies. Additional details are given elsewhere [19]. [Pg.353]

For the homogeneity and stability studies, the trace element contents (Cd, Cr, Cu, Ni, Pb and Zn) were determined by flame atomic absorption spectrometry (FAAS) or electrothermal atomic absorption spectrometry with Zeeman background correction (ZETAAS), strictly following the sequential extraction procedure. Differences between the within-bottle and between-bottle CVs observed for the step 2 were considered to be rather an analytical artefact than an indication of inhomogeneity which would have been reflected in the spread of results submitted in the certification. The material is then considered to be homogeneous for the stated level of intake (1 g). [Pg.410]


See other pages where Homogenization and Bottling is mentioned: [Pg.56]    [Pg.65]    [Pg.89]    [Pg.147]    [Pg.195]    [Pg.199]    [Pg.56]    [Pg.65]    [Pg.89]    [Pg.147]    [Pg.195]    [Pg.199]    [Pg.164]    [Pg.26]    [Pg.33]    [Pg.251]    [Pg.313]    [Pg.249]    [Pg.318]    [Pg.377]    [Pg.461]    [Pg.125]    [Pg.251]    [Pg.20]    [Pg.443]    [Pg.45]    [Pg.318]    [Pg.24]    [Pg.55]    [Pg.71]    [Pg.361]    [Pg.713]    [Pg.1346]    [Pg.278]    [Pg.342]    [Pg.173]    [Pg.309]    [Pg.288]    [Pg.345]    [Pg.357]    [Pg.429]    [Pg.430]    [Pg.158]    [Pg.51]    [Pg.78]    [Pg.1146]    [Pg.452]    [Pg.34]   


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BOTTLE

Bottle, bottles

Bottling

Homogenization and homogenizers

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