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Dionex IonPac - Model AS31 -Analytical and Guard Columns
The selectivity of the Dionex IonPac AS31 column provides excellent separation of the nine HAAs, bromate, and dalapon in drinking water from common anions such as chloride, sulfate, and carbonate. For fast analysis, the column provides 39% shorter run times relative to the Thermo Scientific Dionex IonPac AS24 Column, reducing U.S. EPA Method 557 run time from 57 to 35 min. The columnhas a high capacity to allow large loop injections for trace analysis (μg/L) without sample preconcentration.
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- The nine major HAAs are formed during chlorination of drinking water containing natural organic matter and bromide
- Used to address chlorine resistant organisms, ozonation of drinking water containing bromide can result in the formation of bromate, a potential carcinogen even at low μg/L concentrations
- Dalapon is an herbicide used to control grasses in a wide variety of crop and non-crop applications and can move in water courses by soil erosion. It is associated with minor kidney changes.
The DBP Application Workflow is preferred when there are:
- Limited time and personnel to perform all analyses required of the laboratory and thus a need to reduce labor intensive tasks, such as liquid-liquid solvent extractions and derivatization
- Needs for a reliable technique to reduce repeat analyses
- Multiple inorganic analytes that need testing
- Faster sample–to–results turn over times are needed
- Concerns about the use of organic solvents and the associated costs of the chemical waste disposal