The U.S. Environmental Protection Agency has released updated procedures for collecting groundwater samples through its Laboratory Services and Applied Science Division. The guidance describes general ...

Proper quality measures are vital in all areas of clinical laboratory testing to prevent or avoid carryover between samples, as well as to minimize the risk of false-positive results. The sample ...

Daniel McDonald and Jack Gilbert (both University of California, San Diego; CA, USA) discuss the challenges faced during fecal sample collection and highlight important factors to consider when ...

Federal, state and local agencies have reached consensus on the first validated national standard for collecting, packaging and transporting samples of visible powders that are suspected of being ...

Soil testing begins with the homeowner, gardener, and farmer. The most critical step in soil testing is soil sample collection. Soil testing can help growers make informed decisions about fertilizer ...

The gold standard for detecting the presence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the reverse transcription-polymerase chain reaction (RT-PCR) assay that is conducted ...

GAITHERSBURG, MD, August 7, 2006 – Federal, state, and local agencies have reached consensus on the first validated national standard for collecting, packaging, and transporting samples of visible ...