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Dionex IonPac AS4A-SC 陰離子交換柱
用途和特點(diǎn)：
IonPac AS4A-SC陰離子交換分離柱用CO32-/HCO3-作淋洗液，用于常見(jiàn)無(wú)機(jī)陰離子F-，Cl-，NO2-，PO43-，Br-，NO3-和SO42-的快速分離。常見(jiàn)無(wú)機(jī)陰離子的分離可以在10分鐘內(nèi)完成，用硼酸鹽淋洗液作梯度淋洗可以分離一價(jià)和二價(jià)有機(jī)酸。有機(jī)溶劑可匹配性方便復(fù)雜基體分析后柱子的清洗。樣品基體包括：源水和飲用水；生活和工業(yè)廢水；有害廢物和垃圾萃取液；酸雨；食品和飲料；藥物等。
Dionex IonPac AS4A-SC 陰離子交換柱
訂貨信息：
| 分析柱 | |
| IonPac AS4A-SC Analytical Column (2 x 250 mm) | 043125 |
| IonPac AS4A-SC Analytical Column (4 x 250 mm) | 043174 |
| 保護(hù)柱 | |
| IonPac AG4A-SC Guard Column (4 x 50 mm) | 043175 |
| IonPac AG4A-SC Guard Column (2 x 50 mm) | 043126 |
For the Fast Isocratic Separation of Inorganic Anions in Drinking Water and Wastewater
The IonPac? AS4A-SC 2 mm and 4 mm anion-exchange columns are designed for the fast analysis of inorganic anions in environmental waters. The AS4A-SC was introduced in 1984 and has been the preferred column for inorganic anion analysis for many years. It is the specified column in US EPA Method 300.0 (A).
Resolves inorganic anions in 8 min using an isocratic carbonate/bicarbonate eluent.
Sodium tetraborate gradient optimizes difficult separations.
Meets or exceeds US EPA Method 300.0 (A) performance requirements.
Provides excellent performance for fast analysis of inorganic anions.
The IonPac AS4A-SC (solvent-compatible) is a low-capacity carbonate eluent anion-exchange column for the fast, isocratic separation of inorganic anions such as nitrate or sulfate, using a carbonate/bicarbonate eluent coupled with suppressed conductivity detection. Inorganic anions are easily determined in any liquid, including water, foods, and other diverse sample matrices.
Separation of the common inorganic anions can be achieved in less than 10 min using an isocratic carbonate/bicarbonate eluent. For simplified operation, use the AS4A-SC Eluent Concentrate and the Combined Seven Anion Standard. The Anion Self-Regenerating Suppressor (ASRS? 300) is recommended for use with the AS4A-SC column.
Note: The AS22 is the newest carbonate eluent column recommended for fast analysis of inorganic anions.
| IonPac AS4A-SC Anion-Exchange Column Specifications | |
|---|---|
| Dimensions | IonPac AS4A-SC Analytical Column: 2 × 250 mm and 4 × 250 mm IonPac AG4A-SC Guard Column: 2 × 50 mm and 4 × 50 mm |
| Maximum operating pressure | 4000 psi |
| Mobile phase compatibility | pH 0–14; 0–100% HPLC solvents |
| Substrate characteristics | Bead Diameter: 13 μm Cross-Linking (%DVB): 55% |
| Latex characteristics | Functional Group: Alkanol quaternary ammonium ion Latex Cross-Linking: 0.5% Latex Diameter: 160 nm Hydrophobicity: Medium low |
| Capacity | 5 μeq (2 × 250 mm analytical column) 1 μeq (2 × 50 mm guard column) 20 μeq (4 × 250 mm analytical column) 4 μeq (4 × 50 mm guard column) |
| Column construction | PEEK with 10-32 threaded ferrule-style end fittings. All components are nonmetallic. |
