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AN1163: Determination of Anions on the Surface of Printed Circuit Boards by IPC-TM-650 Method 2.3.28 using HPIC Be the first to rate this application


Ion chromatography (IC) has become an important technique for the evaluation of ionic cleanliness. This application note describes an IC method using a Thermo Scientific™ Dionex™ IonPac™ AS11-HC-4μm column and a Thermo Scientific™ Dionex™ ICS-5000+ HPIC system to determine extractable anionic contaminants on the surface of PCBs, including inorganic anions and weak organic acids (WOAs) following the extraction procedure described in IPC-TM-650 Method 2.3.28. An ICS-6000 can be used for this application. The addendum shows alternative methods with their benefits and limitations.
Market: Environmental
Keywords: Dionex ICS-5000+ System, Electronic components, Formate, Malate, Methanol, PCB, HPIC, inorganic anions, Succinate, Phthalate, RFIC, electronics, phosphate, Acetate, Suppressed Conductivity, adipate, Reagent-Free IC, methanesulfonate, Dionex IonPac AS11-HC-4 µm column, Printed Circuit Boards (PCBs), IPC-TM- 650 Method 2.3.28, Weak Organic Acids (WOAs), ICS-6000, AN 1163, AN1163, methanol-hydroxide eluent, PWB
Matrix: 75/25 (+/- 5%) v/v IPA/H20 solution
Author: Beibei Huang; Terri Christison; Jeffrey Rohrer
Affiliation: Thermo Fisher Scientific, Sunnyvale CA
Uploaded on 2/21/2017.