Atomic Absorption Spectroscopy (AAS) is the most sensitive technique available to analysts for the determination of metal impurities. are prepared by dissolution of the metal, at a purity level of 99.9%, in an acid, usually hydrochloric or nitric acid.

AAS Standard Solutions offered by Rehsiff Scientific are characterized by:
Concentration of the metal equal to 1000 ppm
Guaranteed titer with a +/-0.002 unit tolerance
Certificate of analysis with references on the analytical method, the NIST standard reference material
Shelf Life: 48 months from the date of production for unopened bottles
Expiry date: 12 months from the date of opening.
Available in Packing Volume: 100 and 500 ml