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With 3 new reference materials, NIST gets the dirt on soil
August 27, 2009The National Institute of Standards and Technology (NIST) has issued three new certified reference materials for soil. Intended for use as controls in testing laboratories, the new Standard Reference Materials (SRMs)-gathered from the San Joaquin Valley in California and from sites near Butte and Helena in Montana-will aid in determining soil quality, detecting soil contamination, and monitoring cleanup efforts from accidental spills or atmospheric deposition.
Whether for evaluating soil quality and health, suitability for crop use, assessment of contamination, or for environmental monitoring, analyses of soils are performed routinely by a variety of commercial, government, and university laboratories around the United States and the world. The three new soil SRMs are 2709a, San Joaquin Soil, 2710a, Montana Soil I, and 2711a, Montana Soil II. They come with NIST-certified values for most elements regulated by the Environmental Protection Agency, including those identified as priority pollutants in the Clean Water Act and those specified as hazardous air pollutant elements in the Clean Air Act. NIST created its first batch of sample soils, which the new SRMs replace, about 20 years ago. Efforts to restock the supply with an updated SRM began in 2006.
Scientists at the United States Geological Survey's (USGS) Denver, Colo., laboratory collected the soil for the new SRMs from either the same or near the same locations as they had collected the original soils. The USGS team then prepared the soil samples by individually drying them, sifting them, and blending them before they were packaged and sent to NIST for further processing.
Using non-destructive methods whenever possible, NIST researchers certified most values for elemental and chemical constituents with two or more analytical techniques. USGS scientists provided additional confirmation of the certified NIST values. Altogether, the team published certified, reference and information values for 44, 48 and 45 elements in SRMs 2709a, 2710a and 2711a respectively.
National Institute of Standards and Technology (NIST)
Using non-destructive methods whenever possible, NIST researchers certified most values for elemental and chemical constituents with two or more analytical techniques. USGS scientists provided additional confirmation of the certified NIST values. Altogether, the team published certified, reference and information values for 44, 48 and 45 elements in SRMs 2709a, 2710a and 2711a respectively.
National Institute of Standards and Technology (NIST)
Reference Materials Current Events and Reference Materials News RSSGreater certainty in monitoring 3 therapeutic medications is facilitated by new CRMs
To help bring greater certainty to the measurement of medication levels in a patient's bloodstream for three drugs with narrow therapeutic ranges, the U.S. Pharmacopeial Convention (USP) is releasing new certified reference materials (CRMs).
New NIST trace explosives standard slated for homeland security duty
Security personnel need to be able to find explosive materials and persons who have been in contact with them. To aid such searches, the National Institute of Standards and Technology (NIST), with support from the Department of Homeland Security, has developed a new certified reference material, Standard Reference Material (SRM) 2905, Trace Particulate Explosives.
Newly improved NIST reference material targets infant formula analysis
Chemists at the National Institute of Standards and Technology (NIST) have issued a new certified reference material-a standardized sample backed by NIST-for determining the concentrations of vitamins, minerals and other nutrients in infant and adult nutritional formula and similar products.
Multi-laboratory study sizes up nanoparticle sizing
As a result of a major inter-laboratory study, the standards body ASTM International has been able to update its guidelines for a commonly used technique for measuring the size of nanoparticles in solutions.
The minerals on Mars influence the measuring of its temperature
A team of researchers from the CSIC-INTA Astrobiology Centre in Madrid has confirmed that the type of mineralogical composition on the surface of Mars influences the measuring of its temperature.
Genetically engineered mice yield clues to 'knocking out' cancer
Deleting two genes in mice responsible for repairing DNA strands damaged by oxidation leads to several types of tumors, providing additional evidence that such stress contributes to the development of cancer.
Cystic fibrosis testing -- next steps
Three reports describing advances in cystic fibrosis genetic testing appear in the May 2009 issue of The Journal of Molecular Diagnostics.
NIST, Army researchers pave the way for anthrax spore standards
Researchers from the National Institute of Standards and Technology (NIST) and the U.S. Army Dugway (Utah) Proving Ground have developed reliable methods based on DNA analysis to assess the concentration and viability of anthrax spores after prolonged storage.
Prednisone tablets less variable than marketed drugs
The U.S. Pharmacopeial (USP) Convention today announced results of a study comparing the dissolution variability of USP Prednisone Lot P Reference Standard tablets to two marketed drugs.
International effort takes critical steps to accelerate growth of global biofuels market
The governments of the United States, Brazil and the European Union (EU)-the world's major producers of biofuels-today released an analysis of current biofuel specifications with the goal of facilitating expanded trade of these renewable energy sources.
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