Understanding the differences between convenience, target, and self-selected samples. Representative samples and sampling are addressed multiple times in the cGMPs. For example, in Part 21 of the Code ...

Manual sampling techniques such as hand scoop and spigot sampling are common methods with food and beverage producers and processors. These convenient and low-cost, direct methods are widely accepted ...

To produce high-quality cement, the mineralogical and chemical composition of raw materials, as well as of intermediate and finished products, needs to be determined. At each stage of the production ...

Modern analytical methods are extremely sensitive and capable of detecting minute quantities of compounds in the aliquots they analyse. However, this may be of limited or even no practical use if the ...