Determination of Aluminum in Complex Matrices Using Chelation Ion Chromatography

INTRODUCTION III1 The detennination of trace elements in complex matrices re- Table of Contents II~~ mains one of the most challenging areas of analytical chemislntroduction wa- estuarine brines, seawater, botanical, and geological materials. include matrices Complex try. ters, as well…

Technical Note 27 Determination of Lanthanide Metals in Digested Rock Samples by Chelation Ion Chromatography INTRODUCTION The naturally occurring high concentrations of certain metals such as iron, aluminum, transition metals, alkali metals, and alkaline earth elements in geological materials usually…

Manali Aggrawal and Jeffrey Rohrer Thermo Scientific, Sunnyvale, CA, USA Key Words Dionex IonPac CS10 Column, Tiron, Antacids, Antiperspirants, Dionex ICS-5000+ Reagent-Free HPIC System Goal To develop an IC method for the determination of aluminum in over-the-counter (OTC) products using…

. TechnicalNote D ION E X TN 23 August 1991 INTRODUCTION its relativestability with HIBA. This secondaryequilibrium In aqueoussolution,lanthanidemetalsarepresentastrivalent cations.Becausethe ionic propertiesaresimilar,they cannotbe separated easilyby cationexchangeastrivalentcations.However, the selectivityof the ionscanbe increasedwith the useof appropriatechelatingagentssuchasa-hydroxyisobutyricacid (HIBA). permitsthe separationof the lanthanidesbecauseeachlanthanide hasa…