This application brief demonstrates a method for detecting common organic acids using a Thermo Scientific™ Dionex™ Integrion™ HPIC™ system with a Thermo Scientific™ Dionex™ IonPac™ AS11-HC-4μm column set and coupled to a Thermo Scientific™ ISQ™ EC single quadrupole mass spectrometer.

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.

Organic acids in crude oil, fuel, etc., are one of the biggest concerns of the oil, oil refining, and car manufacturing industries. Because of their corrosive properties and the associated costs of corrosion, organic acids have become a topic of great industrial interest. Ion chromatography (IC) can be used for the determination of low molecular weight organic acids in aqueous or water-miscible matrices. This application note summarizes the use and evaluation of an automated IC method for the direct determination of acetate and formate in diesel, oil, and diesel/oil mixtures.

In the electronics industry, ionic contamination in the range of parts per trillion (ppt, ng/L) to parts per billion (ppb) concentrations is a major concern, causing corrosion-related failures in production and final product. Ionic contamination is increasingly important as the devices decrease to size. This technical note demonstrates automated calibration and water purification on an ICS-5000+ HPIC dual IC system to minimize the system and environmental contamination which resulted in increased sensitivity to double-digit-ppt concentrations. An ICS-6000 can be used for this application.

In the electronics industry, ionic contamination, in the range of parts per trillion (ppt, ng/L) to parts per billion (ppb) concentrations, is a major concern causing corrosion-related failures in production and as a product. Ionic contamination is increasingly important as the devices decrease to size. This technical note demonstrates automated calibration and water purification on an ICS-5000+ HPIC dual IC system to minimize the system and environmental contamination which resulted in increased sensitivity to double-digit-ppt concentrations. An ICS-6000 can be used for this application.