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上海希言科學(xué)儀器有限公司>>美國戴安Dionex>> 美國戴安 P/N: 062888Dionex IonPac AS19 Column AS19系列陰離子交換色譜柱

Dionex IonPac AS19 Column AS19系列陰離子交換色譜柱

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  • Dionex IonPac AS19 Column AS19系列陰離子交換色譜柱
  • Dionex IonPac AS19 Column AS19系列陰離子交換色譜柱
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  • 型號 美國戴安 P/N: 062888
  • 品牌 DIONEX/英國
  • 廠商性質(zhì) 代理商
  • 所在地 上海
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戴安公司生產(chǎn)的儀器主要有離子色譜儀、高效液相色譜儀、快速溶劑萃取儀和氨基酸直接分析儀。其中離子色譜儀憑借著雄厚的技術(shù)優(yōu)勢和方法已廣泛地應(yīng)用于各個(gè)領(lǐng)域,其*達(dá)80%。與離子色譜相關(guān)的文章有90%均出自戴安公司生產(chǎn)的離子色譜儀。

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IonPac AS19 Hydroxide-Selective Anion-Exchange Column

For Determination of Oxyhalides and Inorganic Anions

The IonPac? AS19 hydroxide-selective anion-exchange column is specifically designed for trace bromate in drinking water. Its high capacity and selectivity allow the determination of bromate in drinking water at the low-μg/L level. The IonPac AS19 columns meets the performance requirements of US EPA Methods 300.0 and 300.1.

The new IonPac AS19 Capillary Column is packed with the same material as the equivalent standard bore version (providing the same performance as a 4 mm column), but requires only 1/100th the eluent flow rate.The capillary format provides the advantage of significantly reduced eluent consumption, which helps reduce operating costs.

  • Recommended hydroxide-selective column for trace bromate in drinking water matrices
  • High capacity: 240 μeq per column (4 × 250 mm)
  • Meets or exceeds performance requirements of US EPA Methods 300.0 and 300.1
  • Column selectivity is optimized for 30 °C operating temperature
  • Compatible with organic solvents
  • Low background signal and enhanced analyte sensitivity with the ASRS? 300 and an RFIC system

The IonPac AS19 is designed for the analysis of oxyhalides and common inorganic anions including fluoride, chlorite, bromate, chloride, nitrite, bromide, chlorate, nitrate, phosphate, and sulfate in drinking water, groundwater, wastewater, and other diverse sample matrices. The IonPac AS19 allows analysis of most drinking water without the use of sample pretreatment or preconcentration. This column is ideally used with an RFIC system for automatic eluent generation.

The key application for the IonPac AS19 is the determination of trace bromate in drinking water matrices using a potassium hydroxide gradient with suppressed conductivity detection. The selectivity of the AS19 ensures that bromate can be quantified at low μg/L concentrations using suppressed conductivity detection even in the presence of very high concentrations of chloride, sulfate, and carbonate.

Note: Use the Anion Self-Regenerating Suppressor (ASRS 300) with the IonPac AS19 column for eluent suppression.


IonPac AS19 Anion-Exchange Column   Specifications
DimensionsIonPac AS19 Analytical Column:
2 × 250 mm and 4 × 250 mm
IonPac AG19 Guard Column:
2 × 50 mm and 4 × 50 mm

IonPac AS19 Capillary Column:
0.4 × 250 mm
IonPac AG19 Capillary Guard Column:
0.4 × 50 mm
Maximum operating pressure4000 psi (standard and microbore)
5000 psi (capillary)
Ion-exchange groupFunctional Group: Alkanol quaternary ammonium ion
Functional group characteristicsUltralow hydrophobicity
Capacity2.4 ?eq (0.4 × 250 mm capillary column)
0.06 ?eq* (0.4 × 50 mm capillary guard column)
60 ?eq (2 × 250 mm analytical column)
1.5 ?eq* (2 × 50 mm guard column)
240 ?eq (4 × 250 mm analytical column)
6 ?eq* (4 × 50 mm guard column)
*Guards are packed with a low-capacity microporous resin.
Column constructionPEEK with 10-32 threaded ferrule-style end fittings.
All components are nonmetallic.
Substrate characteristicsBead Diameter and Pore Size: 7.5 ?m (0.4 x 250, 2 × 250 and 4 × 250 mm);
super macroporous resin (2000 ?)
12 ?m (0.4 x 50, 2 × 50 and 4 × 50 mm);
microporous resin (<1 ?)
Cross-Linking (%DVB): 55%
phase compatibilitypH 0–14; 0–100% HPLC solvents



Analytical Columns
IonPac AS19 Analytical Column (4 x 250 mm)062885
IonPac AS19 Analytical Column (2 x 250 mm)062886
IonPac AS19 Capillary Column (0.4 x 250 mm)072064
Guard Columns
IonPac AG19 Guard Column (4 x 50 mm)062887
IonPac AG19 Guard Column (2 x 50 mm)062888
IonPac AG19 Capillary Guard Column (0.4 x 50 mm)072065


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