1000ug/mL POTASSIUM 500mL for AA

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SKU: AAK1-500ML
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Potassium Expanded View

Potassium

Location:  Group 1, Period 4
Atomic Weight:  39.0983
Coordination Number:  (6)
Chemical Form in Solution:  K+(aq)
(coordination number in parentheses is assumed, not certain)

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, HNO3, H2SO4, and HF aqueous matrices. Avoid use of HClO4 due to insolubility of the perchlorate. Stable with all metals and inorganic anions except ClO4-.

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

K Containing Samples (Preparation & Solution):  Metal (dissolves very rapidly in water); Ores (sodium carbonate fusion in Pt0 followed by HCl dissolution - blank levels of K in sodium carbonate critical); Organic Matrices (Sulphuric / peroxide digestion).

Atomic Spectroscopic Information:  (red text indicates severe at ~ concs.)
Technique / Line Estimated D.L.* Order Type Interferences
ICP-OES 766.490 nm 0.4/.001 µg/mL 1 atom **
ICP-OES 771.531 nm 1.0/.03 µg/mL 1 atom **
ICP-OES 404.721 nm 1.1/.05 µg/mL 1 atom U, Ce
ICP-MS 39 amu 10 ppt n/a M+ 38ArH, 23Na16O, 78Se+2
*ICP-OES D.L.'s are given as radial / axial view
**2nd order radiation from R.E.s on some optical designs

Potassium (k) Standards In Our Store

Product Specifications

  • Part #:

    AAK1-500ML

  • Description:

    1000ug/mL POTASSIUM 500mL

  • Matrix:

    0.1% v/v Nitric Acid

  • Starting Material:

    KNO3

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