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Displaying 1-5 of 71 results for Tag: Nitrate
TN72206: Configuring the Dionex Modular HPIC System with an Inline Water Purifier and Inline Calibration for Trace Anion Determinations in Ultrapure Water: 50 ppt Standard
Instrument Type: ICIn 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.
AN1112: Determination of Anions in Breast Milk
Instrument Type: ICMSBreast milk is the primary source of nutrition for newborns before they are able to eat and digest other foods, so there is a close correlation between breast milk quality and infant health. In addition to proteins and vitamins, the ionic elements such as sodium, potassium, calcium, magnesium, chloride, and nitrate in breast milk also are important for infant health. However, consumption of breast milk that contains a high concentration of these ions could lead to health issues. IC is an efficient means to determine anions. An ICS-6000 can be used for this application.
Trace Anion Analysis in Ultrapure Water Using an Electrolytic Water Purifier with a Compact Ion Chromatography System: Water Blank
Instrument Type: ICDeterminations of trace anions in ultrapure water are important to the electronics industry. In this record, determinations of ng/L (ppt) anions using large volume concentration are made possible by the Electrolytic Water Purifier(EWP) and AutoPrep modules. Calibration standards are prepared using the AutoPrep large and small loops and EWP-purified water diluent, thereby increasing sensitivity by eliminating sources of contamination. The trace anions are separated on an IonPac AS17-C column designed to improve low level sulfate determinations using a Dionex Integrion compact IC system.
Trace Anion Analysis in Ultrapure Water Using an Electrolytic Water Purifier with a Compact Ion Chromatography System: 50 ppt Standard
Instrument Type: ICDeterminations of trace anions in ultrapure water are important to the electronics industry. In this record, determinations of ng/L (ppt) anions using large volume concentration are made possible by the Electrolytic Water Purifier(EWP) and AutoPrep modules. Calibration standards are prepared using the AutoPrep large and small loops and EWP-purified water diluent, thereby increasing sensitivity by eliminating sources of contamination. The trace anions are separated on an IonPac AS17-C column designed to improve low level sulfate determinations using a Dionex Integrion compact IC system.
Determination of Inorganic Anions in Environmental Waters Using a Compact Ion Chromatography System
Instrument Type: ICThis method shows the determination of inorganic anions in an environmental water sample, previously published in Application Note 154. In this record, the method is executed on an Integrion HPIC system with eluent generation.