Basic Training 4th Annual ICP Conference

7:4 Stability of elements at ppb concentra'on levels

Desorp'on of adsorbed inorganic anions - A3empts to remove adsorbed ions typically require extreme condi'ons and are only par'ally successful, as seen below.

Data taken from Table 1.4 pp 25 of Rudolf Bock (Translated by Iain L Marr), A Handbook Of Decomposi3on Methods In Analy3cal Chemistry, Hasted Press (a Division of John Wiley and Sons Inc., New York), 1979.

7:5 Stability of elements at ppb concentra5on levels

Prevention of adsorption by complexation - Attempts have been made to prevent adsorption by complex formation, as shown below, but the use of relatively high levels of reagents increases the risk of contamination. Furthermore, it tends to influence the stability and chemistry of other analytes of interest.

Data taken from Table 1.5 pp 26 of Rudolf Bock (Translated by Iain L Marr), A Handbook Of Decomposition Methods In Analytical Chemistry, Hasted Press(a Division of John Wiley and Sons Inc., New York), 1979.