TN73982: Techniques for Successful Trace Anion and Trace Cation Determinations in High Purity Waters
DescriptionIn the electronics industry, ionic contamination, in the range of parts per trillion (ppt, ng/L) to parts per billion (ppb, μg/L) concentrations, is a major concern. This contamination can cause corrosion-related failures. Three techniques will be discussed: 1) Large volume direct injection, 2) Large volume with preconcentration, and 3) Thermo Scientific™ Dionex™ AutoPrep™ method using large volume preconcentration for samples, small volume preconcentration for standards, and an inline water purifier to create a closed loop system. General precautions and tips are thoroughly discussed.
|Market:||Electronics & Semiconductors; Energy|
|Keywords:||Formate, Magnesium, Dionex IonPac CS16 Column, fluoride, Lithium, Nitrate, RFIC, borate, Calcium, Nitrite, Sodium, Chloride, phosphate, Acetate, Sulfate, Reagent-Free IC, Ammonium, Glycolate, Bromide, Carbonate, EWP, AN 73852, AutoPrep Large Loop Small Loop, borated, Dionex AutoPrep, Dionex IonPac AS17 column, Dionex IonPac AS28-Fast column, Dionex IonPac CS12A column, inline electrolytic water purifier, Large volume direct injection, Large volume with preconcentration, troubleshooting, TN 73982, TN73982, AU 137, AN 86, AN 131, AU 142, AN 146, AN 153, AN146, AN153, AN73852, AU 155, AU 163, AU142, AU163, TN 72206, TN72206, AN152, AN86, AU137, AU155, AN131, AU 157, AU157|
|Matrix:||power plant cooling solutions, ultrapure DI water, UPW|
|Author:||Terri Christison, Manali Aggrawal, and Jeff Rohrer|
|Affiliation:||Thermo Fisher Scientific, Sunnyvale, CA USA|
For Research Use Only. Not for use in diagnostic procedures.