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Displaying 1-3 of 3 results for Tag: ppt
AN630: EPA Method 557 – Analysis of Haloacetic Acids, Dalapon, and Bromate in Drinking Water by IC-MS/MS: HAA9
Instrument Type: ICMSHaloacetic acids (HAAs) are formed as disinfection byproducts when municipal chlorination processes react with naturally occurring brominated and chlorinated species. Five HAAs are currently regulated, whereas four others may be included in future regulations. Here we demonstrate the determinations of 0.02 to 0.1 ng/L (ppt) HAA9 concentrations using ion chromatography separations combined with tandem MS on a triple quadrupole mass spectrometry.
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.
