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      產品中心您現在的位置:首頁 > 產品展示 > 液相色譜柱 > 離子色譜柱 > Dionex IonPac AS20 陰離子交換柱 063148

      Dionex IonPac AS20 陰離子交換柱 063148

      更新時間:2019-11-20

      簡要描述:

      Dionex IonPac AS20 陰離子交換柱 063148
      飲用水中高氯酸鹽的簡化,地表水和地下水的微量分析

      Dionex IonPac AS20 陰離子交換柱 063148

      飲用水中高氯酸鹽的簡化,地表水和地下水的微量分析,矩陣使用Thermo Scientific? Dionex? IonPac? AS20毛細管,分析保護柱。本專欄的容量和選擇性確保高氯酸鹽可以量化的低μg/L采用抑制電導檢測的濃度,即使在濃度很高的氯化物,碳酸鹽和硫酸鹽的存在。本欄是美國環保局規定的314.1用于樣品預濃縮后飲用水中痕量高氯酸的測定(驗證性方法)。

       

      Dionex IonPac AS20 陰離子交換柱 063148

      訂貨信息:

      Dionex IonPac AS20 陰離子交換柱

      分析柱
      IonPac AS20 Analytical Column (2 x 250 mm)063065
      IonPac AS20 Analytical Column (4 x 250 mm)063148
      IonPac AS20 Capillary Column (0.4 x 250 mm)075399
      保護柱
      IonPac AG20 Guard Column (2 x 50 mm)063066
      IonPac AG20 Guard Column (4 x 50 mm)063154
      IonPac AG20 Capillary Guard Column (0.4 x 50 mm)075400

       

       

      For Determination of Trace Perchlorate Using Suppressed Conductivity Detection

      The IonPac? AS20 hydroxide-selective anion-exchange column is specifically designed for determination of trace concentrations of perchlorate in drinking water, surface water, and groundwater matrices. The capacity and selectivity of the AS20 ensures that perchlorate can be quantified at low μg/L concentrations using suppressed conductivity detection, even in the presence of very high concentrations of chloride, carbonate, and sulfate. The new IonPac AS20 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 for US EPA Method 314.1 (Confirmatory Method)

      • High capacity: 310 μeq per column. (4 × 250 mm)

      • Use the Cryptand C1 Concentrator Column for sample preconcentration with the analytical column

      • Simplified Reagent-Free IC operation provided by the Eluent Generator

      • ASRS 300 or ACES 300 provides RFIC operation with low background and enhanced analyte sensitivity

      • Column selectivity is optimized for 30 °C operating temperature

      • Compatible with organic solvents

      The IonPac AS20 is the specified column in US EPA Method 314.1 (Confirmatory Method). The Cryptand C1 Concentrator Column is the specified concentrator column for sample preconcentration in that method.

      Use the IonPac AS20 column with an RFIC? system for optimum detection limits. Use the Anion Self-Regenerating Suppressor (ASRS? 300) or the Anion Capillary Electrolytic Suppressor (ACES 300) with the AS20 column for eluent suppression.

       

      IonPac AS20 Anion-Exchange Column   Specifications
      Maximum Operating Pressure:4000 psi (standard and microbore) 5000 psi (capillary)
      Mobile Phase Compatibility:pH 0–14; 0–100% HPLC solvents
      Ion Exchange Group:Functional Group: Alkanol quaternary ammonium ion
      Column Construction:PEEK with 10–32 threaded ferrule style end fittings.
      All components are nonmetallic.
      Functional Group Characteristics:Ultralow Hydrophobicity
      Dimensions:
      IonPac AS20 Capillary Column:
      0.4 ×250 mm 
      IonPac AG20 Capillary Guard Column: 
      0.4 × 50 mm 
      IonPac AS20 Analytical Column:
      2 × 250 mm
      IonPac AG20 Guard Column:
      2 × 50 mm
      IonPac AS20 Analytical Column:
      4 × 250 mm
      IonPac AG20 Guard Column:
      4 × 50 mm

       

      Capacity:

      3.1 μeq (0.4 × 250 mm capillary column)
      77.5 μeq (2 × 250 mm analytical column)
      310 μeq (4 × 250 mm analytical column)
      0.06 μeq*(0.4 × 50 mm capillary guard column)
      1.5 μeq* (2 × 50 mm guard column)
      6 μeq* (4 × 50 mm guard column)
      *Guards are packed with a low-capacity microporous resin.

      Substrate Characteristics:Bead Diameter and Pore Size:
      7.5 μm (2 × 250, 4 × 250 and 0.4 × 250 mm);
      super macroporous resin (2000 ?)
      11 μm (2 × 50, 4 × 50 and 0.4 × 50 mm);
      microporous resin (<1 ?)
      Crosslinking (%DVB): 55%

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