10ug/mL URANIUM 125mL

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10ug/mL URANIUM 125mL

Uranium Expanded View


Location:  Period 7 (actinoid)
Atomic Weight:  238.0289
Coordination Number:  8
Chemical Form in Solution:  UO22+ (uranyl)

Storage & Handling:  Keep tightly sealed when not in use. Store and use at 20 ± 4°C. Do not pipet from container. Do not return portions removed for pipetting to container.

Chemical Compatibility:  Soluble in HCl and HNO3. Avoid H3PO4. H2SO4 and HF matrices should not be a problem depending upon [U]. Although the UO22+ ion is distinctly basic, any U+4 will ppt. in basic media. UO22+salts are generally soluble in water and UO22+ is stable with most metals and inorganic anions. The uranyl phosphate is insoluble in water. UF4 and UF6 are water soluble.

Stability:  2-100 ppb levels stable for months in 1% HNO3 / LDPE container. 1-10,000 ppm solutions chemically stable for years in 2-5% HNO3 / LDPE container.

U Containing Samples (Preparation & Solution):  Metal (dissolves rapidly in HCl and HNO3); Oxide (soluble in HNO3); Ores (digest for 1-2 hours with 1 gram of ore to 30 mL 1:1 HNO3. Silica insolubles are removed by filtration after bringing the sample to fumes with conc. H2SO4).

Atomic Spectroscopic Information:
Technique / Line Estimated D.L.* Order Type Interferences
ICP-OES 385.958 nm 0.3/.01 µg/mL 1 ion Th, Fe
ICP-OES 367.007 nm 0.3/.02 µg/mL 1 ion Th, Ce
ICP-OES 263.553 nm 0.3/.01 µg/mL 1 ion Ce, Ir, Th, Rh, W, Zr, Ta, Ti, V, Hf, Fe, Re, Ru
ICP-MS 238 amu 2 ppt n/a M+ 206Pb16O2
*ICP-OES D.L.'s are given as radial / axial view

Uranium (U) Standards In Our Store

Product Specifications

  • Part #:


  • Description:

    10ug/mL URANIUM 125mL

  • Matrix:

    1% v/v Nitric Acid

  • Starting Material:


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Traceable to NIST SRMs
Produced under ISO 17025
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Assayed by validated wet chemical procedures
Assayed by validated ICP-OES procedures
Trace metallic impurities determined by ICP and ICP-MS

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