美国戴安Dionex IonPac AS18 Column 阴离子交换色谱柱


美国戴安Dionex IonPac AS18 Column 阴离子交换色谱柱

简要描述:

戴安公司生产的仪器主要有离子色谱仪、高效液相色谱仪、快速溶剂萃取仪和氨基酸直接分析仪。其中离子色谱仪凭借着雄厚的技术优势和方法已广泛地应用于各个领域,其市场占有率达80%。与离子色谱相关的文章有90%均出自戴安公司生产的离子色谱仪。

型号 美国戴安 P/N: 075760

IonPac AS18 Hydroxide-Selective Anion-Exchange Column

For Determination of Inorganic Anions and Low-Molecular-Weight Organic Acids

The IonPac? AS18 anion-exchange column is the hydroxide-selective column of choice for compliance monitoring of inorganic anions in drinking water and wastewater samples in accordance with US EPA Methods 300.0 (A) and 300.1. 

The new IonPac AS18-Fast columns offer the same selectivity as the AS18 analytical scale columns, but with a reduced length of 150 mm, these columns can separate the common inorganic anions in significantly less time. The capillary format offers the advantage of reduced eluent consumption, thereby lowering operating costs.  

  • Fast separation of the common inorganic anions (4 min) using the AS18-Fast columns
  • Recommended hydroxide-selective column for inorganic anions in diverse sample matrices
  • Isocratic separation of common inorganic anions in 9 minutes
  • Inorganic anion and low-molecular weight organic acids in complex sample matrices
  • Superior retention and quantification of fluoride, acetate, and formate
  • Meets performance requirements specified in US EPA Method 300.0 (A)

The  IonPac AS18 column can determine inorganic anions and low-molecular-weight organic acids in a variety of sample matrices. This column has excellent retention of fluoride from the water dip. It is approved for compliance monitoring of inorganic anions in drinking water and wastewater samples in accordance with US EPA Methods 300.0 and 300.1. The AS18 column is now available in capillary format providing the advantage of reduced eluent consumption, thereby lowering operating costs.

IonPac? AS18 Anion-Exchange Column Specifications
Dimensions

IonPac AS18 Analytical Column:
2 × 250 mm and 4 × 250 mm
IonPac AG18 Guard Column:
2 × 50 mm and 4 × 50 mm
IonPac AS18 Capillary Column:
0.4 × 250 mm
IonPac AG18 Capillary Guard Column:
0.4 × 50 mm
IonPac AS18-Fast Analytical Column:
2 × 150 mm and 4 × 150 mm
IonPac AG18-Fast Guard Column:
2 × 30 mm and 4 × 30 mm
IonPac AS18-Fast Capillary Column:
0.4 × 150 mm
IonPac AG18-Fast Capillary Guard Column:
0.4 × 35 mm

Maximum operating pressure 4000 psi (standard and microbore)
5000 psi (capillary)
phase compatibility pH 0–14; 0–100% HPLC solvents
Latex characteristics Functional Group: Alkanol quaternary ammonium ion
Latex Crosslinking: The effective crossslinking after functionalization is 8%
Latex Diameter: 65 nm
Hydrophobicity: Low
Substrate characteristics Bead Diameter and Pore Size: 7.5 ?m (0.4 × 250, 2 × 250, 4 × 250, 0.4 × 150 mm, 2 ×150 and 4 × 150); supermacroporous resin (2000 ?)
13 ?m (0.4 x 50 mm, 2 × 50, 4 × 50, 2 × 30, 4 × 30, and 0.4 × 35 mm);
microporous resin (<10 ?)
Crosslinking (%DVB): 55%
Capacity

1.71 ?eq (0.4 × 150 mm capillary column)
0.07 ?eq* (0.4 × 35 mm capillary guard column)
2.85 ?eq (0.4 × 250 mm capillary column)
0.10 ?eq* (0.4 × 50mm capillary guard column)
171 ?eq (4 × 150 mm analytical column)
6 ?eq* (4 × 30 mm guard column)
45 ?eq (2 × 150 mm analytical column)
1.5 ?eq* (2 × 30 mm guard column)
75 ?eq (2 × 250 mm analytical column)
2.5 ?eq* (2 × 50 mm guard column)
285 ?eq (4 × 250 mm analytical column)
10 ?eq* (4 × 50 mm guard column)
*Guards are packed with a low-capacity microporous resin.

Column construction PEEK with 10-32 threaded ferrule-style end fittings.
All components are nonmetallic.

Analytical Columns
IonPac AS18 4 mm Analytical Column (4 x 250 mm) 060549
IonPac AS18 2 mm Analytical Column (2 x 250 mm) 060553
IonPac AS18-Fast Capillary Column (0.4 x 150 mm) 072062
IonPac AS18-Fast Analytical Column (4 x 150 mm) 075760
IonPac AS18-Fast Analytical Column (2 x 150 mm) 075759
IonPac AS18 Capillary Column (0.4 x 250 mm) 075772
Guard Columns
IonPac AG18 4 mm Guard Column (4 x 50 mm) 060551
IonPac AG18 2 mm Guard Column (2 x 50 mm) 060555
IonPac AG18-Fast Capillary Guard Column (0.4 x 35 mm) 072063
IonPac AG18-Fast Guard Column (4 x 30 mm) 075762
IonPac AG18-Fast Guard Column (2 x 30 mm) 075761
IonPac AG18 Capillary Guard Column (0.4 x 50 mm) 075773