by Dionex
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.
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.
| Vendor | Dionex | Internal Diameter | |
| Brand | IonPac AS18 | Pore size | 2000 |
| Modifification | Quaternary ammonium | Max Pressure | 4000 |
| Mode | Anion-Exchange | pH stability from | 0.0 |
| Particle Size | pH stability to | 14.0 | |
| Length |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| TOSOH | TSKgel | Anion-Exchange | Quaternary ammonium | 3.0 mm | 35 mm | 10.0 μm | — | On request |
| Shodex | IEC QA | Anion-Exchange | Quaternary ammonium | 20.0 mm | 150 mm | 20.0 μm | — | On request |
| Shodex | QA8 | Anion-Exchange | Quaternary ammonium | 0.5 mm | 150 mm | 12.0 μm | — | On request |
| Dionex | IonPac AS22 | Anion-Exchange | Quaternary ammonium | 2.0 mm | 150 mm | 6.5 μm | 2000 Å | On request |
| Dionex | CarboPac SA10 | Anion-Exchange | Quaternary ammonium | 4.0 mm | 250 mm | 6.0 μm | — | On request |
| GRACE | Alltech IC Allsep Anion Metal Free | Anion-Exchange | Quaternary ammonium | 4.6 mm | 150 mm | 7.0 μm | — | On request |
| Shodex | IC NI | Anion-Exchange | Quaternary ammonium | 4.6 mm | 100 mm | — | — | On request |
| Dionex | DNAPac PA200 | Anion-Exchange | Quaternary ammonium | 2.0 mm | 250 mm | 8.0 μm | — | On request |
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