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The following seven standardized sample collection forms were developed to standardize sampling procedures: sample collection forms for swimming pools, water distribution systems, bottled-water plants, seacoasts, water distribution systems (Legionella spp. detection), cooling towers (Legionella spp. detection), and decorative fountains (Legionella spp. detection).
An overview of the survey procedures, sample selection and administration is given here.
Two samples from Egypt were analyzed with the the two procedures, sample Nef-y (containing yellow ochre [37] analzed at the GCI) and Nef-r (containing red ochre [37] analyzed at the DCCI).
A Plackett-Burman (2^7*3/16) type III resolution factorial design was used to optimize the extraction and purification procedures, sample amount, extractant volume, boiling and rinsing times as extraction variables and alumina, acid silica gel amounts and elution volume as purification variables.
All procedures (sample handling, analytics) were performed by co-workers blinded to the experimental groups.
Pooling of gene expression data sets generated at different institutions and time points may introduce artifacts due to, e.g., different reagent lots, scanner settings, RNA extraction procedures, sample selections and laboratory practices.
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SOP often includes scene procedures, sampling procedures, laboratory procedures, reporting procedures, storage procedures, equipment procedures, and safety procedures.
Following these procedures, samples containing 10 wt.% Co and 15 wt.% niobium oxide (expressed as Nb2O5) were obtained.
These include, for example, species identification, legal requirements and approvals, selection and number of individuals, sampling period, recommended equipment and cleaning procedures, sampling technique, and sample transport.
After freezing procedures, samples were stored in a liquid nitrogen container.
Following quality-control procedures, samples yielded between 7.1 and 8.5 Gb of high quality, aligned data.
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