Preparation and certification of trace mercury in water standard reference materials

Conference · Thu Jan 01 04:00:00 EST 1976 · Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States)

OSTI ID:7125014

Moody, J R; Paulsen, P J; Rains, T C; Rook, H L

The study of mercury in natural water supplies requires a Standard Reference Material (SRM) with a certified concentration at the 1 ng/g level. NBS SRM's have been prepared with nominal mercury concentrations of 1.5 ..mu..g/g and 1.2 ng/g. Confirmation of these values was obtained by neutron activation, atomic absorption, and isotope dilution-spark source mass spectrometry (IDSSMS). Nitric acid and trace amounts of gold were added to achieve a stable mercury concentration. The precautions observed for cleaning the glass and Teflon containers, preparation of mercury solutions, and the packaging of the SRM's are given. As an example of the care needed in the analysis of mercury at these levels, specific details are presented for the chemistry required to prepare samples for the spark source mass spectrometer (SSMS).

• Research Organization: National Bureau of Standards, Washington, DC
• OSTI ID: 7125014
• Conference Information: Journal Name: Natl. Bur. Stand. (U.S.), Spec. Publ.; (United States) Journal Volume: 1
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101* -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
400104 -- Spectral Procedures-- (-1987)
ABSORPTION SPECTROSCOPY
ACTIVATION ANALYSIS
BARYON REACTIONS
CHEMICAL ANALYSIS
ELEMENTS
HADRON REACTIONS
HYDROGEN COMPOUNDS
ISOTOPE APPLICATIONS
ISOTOPE DILUTION
MASS SPECTROSCOPY
MERCURY
METALS
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OXYGEN COMPOUNDS
SPECTROSCOPY
STANDARDS
TRACE AMOUNTS
TRACER TECHNIQUES
WATER