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Dionex IonPac AS16 陰離子交換柱 082315
利用 Thermo Scientific? Dionex? IonPac? AS16 毛細管分析和保護柱快速準確地測定多種水基質中的痕量高氯酸鹽和其他極易極化的陰離子 。 該款色譜柱簡化了使用等度氫氧化物淋洗液對易極化陰離子的測定，包括硫代硫酸鹽、碘化物、硫氰酸鹽和高氯酸鹽。 特別適用于依照美國 EPA 方法 314.0 和 314.1（主要方法）對飲用水中的痕量高氯酸鹽進行測定。
描述
設計用于實現簡單、高靈敏度分析
使用大定量環進樣，輕松測定飲用水、地表水和地下水基質中痕量高氯酸鹽濃度
在 20 分鐘內分離疏水陰離子（碘化物、硫氰酸鹽和硫代硫酸鹽）
特別適合多價陰離子，包括多聚磷酸鹽和多聚羧酸鹽
超低疏水性可實現對易極化陰離子的快速分析
可用于 2D-IC 方法中的二維分離，用于分析飲用水中的痕量高氯酸鹽（亞 ppb 級）
提供多種規格
標準孔 (4x250mm)、微孔(2x250mm) 和毛細管 (0.4x250mm) 規格
毛細管柱使用與標準孔和微孔版本相同的填料（提供與 4 mm 和 2 mm 柱相同的性能），但僅使用 1% 的洗脫液流速，幫助降低運行成本。
Dionex IonPac AS16 陰離子交換柱 082315
訂貨信息：
Dionex IonPac AS16 陰離子交換柱
| 分析柱 | |
| IonPac AS16 Analytical Column (4 x 250 mm) | 055376 |
| IonPac AS16 Analytical Column (2 x 250 mm) | 055378 |
| Dionex IonPac AS16 Capillary Column (0.4 x 250 mm) | 082315 |
| 保護柱 | |
| IonPac AG16 Guard Column (4 x 50 mm) | 055377 |
| IonPac AG16 Guard Column (2 x 50 mm) | 055379 |
| Dionex IonPac AG16 Capillary Guard Column (0.4 × 50 mm) | 082316 |
High-Capacity Column Optimized for Determination of Polarizable Anions
The Thermo Scientific? Dionex? IonPac? AS16 column is ideally suited for trace perchlorate in drinking water in accordance with US EPA Methods 314.0 and 314.1 (Primary Method). The Dionex IonPac AS16 column simplifies the determination of polarizable anions, including thiosulfate, iodide, thiocyanate, and perchlorate using an isocratic hydroxide eluent.
Separate hydrophobic anions (iodide, thiocyanate, and thiosulfate) in less than 20 min
Can be used for trace perchlorate in drinking water matrices
Ideal for polyvalent anions, including polyphosphates and polycarboxylates
Ultralow hydrophobicity allows fast analysis of polarizable anions
The Dionex IonPac AS16 is a high-capacity, hydroxide-selective column for the determination of polarizable anions in a variety of sample matrices. Trace concentrations of perchlorate in drinking water, surface water, and ground water matrices can easily be determined using a large-loop injection. The Dionex IonPac AS16 column is available in three formats: standard bore (4 × 250 mm), microbore (2 × 250 mm) and capillary (0.4 × 250 mm). The capillary format is packed with the same material as the equivalent standard bore and microbore versions (providing the same performance as a 4 mm and 2 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. The Dionex IonPac AS16 capillary column is used in the second dimension of the 2D-IC method for the analysis of trace perchlorate (sub ppb) in drinking water.
Note: Also see the Dionex IonPac AS20, with complementary selectivity for confirmation of perchlorate identification when using EPA Method 314.1
| Dionex IonPac AS16 Anion-Exchange Column Specifications | |
|---|---|
| Dimensions | Dionex IonPac AS16 Analytical Column: |
| Maximum operating pressure | 4000 psi |
| Mobile phase compatibility | pH 0–14; 0–100% HPLC solvents |
| Substrate characteristics | Bead Diameter: 9 μm Pore Size: 2000 ? super macroporous resin Cross-Linking (%DVB): 55% |
| Latex characteristics | Functional Group: Alkanol quaternary ammonium ion Latex Cross-Linking: 1% Latex Diameter: 80 nm Hydrophobicity: Ultralow |
| Capacity | 42.5 μeq (2 × 250 mm analytical column) 0.875 μeq* (2 × 50 mm guard column) 170 μeq (4 × 250 mm analytical column) 3.5 μeq* (4 × 50 mm guard column) 1.7 μeq (0.4 × 250 mm capillary column) 0.035 μeq (0.4 × 50 mm capillary 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. |
