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Dionex IonPac AS24 陰離子交換柱 064153
使用 Thermo Scientific? Dionex? IonPac? AS24 分析柱和保護柱，可分離飲用水樣品中的鹵乙酸和溴酸鹽。 這種高容量氫氧化物選擇性陰離子交換柱專為在質(zhì)譜檢測前端，分離飲用水中的鹵乙酸和溴酸鹽而研制。 2x250mm 為美國 EPA 方法 557 中的柱規(guī)格。 Dionex IonPac AS24 的柱容量和選擇性能夠確保對飲用水中的低至 μg/L (ppb)級 濃度鹵乙酸進行分析。 該柱也非常適合開發(fā)特殊的應用方法，能對環(huán)境陰離子，包括復雜基質(zhì)中無機陰離子、鹵氧化物、含氧陰離子和有機酸等實現(xiàn)分離。
描述
色譜分析性能優(yōu)異
美國 EPA 方法 557 (2x250mm)
高柱容量（140μeq/柱，2x250mm）使得進樣復雜基質(zhì)時不會出現(xiàn)色譜柱過載，同時又能始終對低濃度分析物獲得*的峰形
當測定高離子強度基質(zhì)中的鹵乙酸時，不需進行樣品預處理
可在美國 EPA 方法 302.0 所述的關于溴酸鹽的 2D 方法中用作第二維色譜柱（2x250 mm）
尤其適合在梯度洗脫下使用 Reagent-Free? 離子色譜（RFIC?）系統(tǒng)開發(fā)專門應用方法
可在環(huán)境溫度或更高溫度下運行；經(jīng)過優(yōu)化選擇在 15oC 的操作溫度下可確保鹵乙酸的回收率具有良好重現(xiàn)性
與 HPLC 有機溶劑兼容，操作靈活、易于清洗
Dionex IonPac AS24 陰離子交換柱 064153
訂貨信息：
Dionex IonPac AS24 陰離子交換色譜柱
| 分析柱 | |
| IonPac AS24 Analytical Column (2 x 250 mm) | 64153 |
| 保護柱 | |
| IonPac AG24 Guard Column (2 x 50 mm) | 64151 |
For Separation of Haloacetic Acids and Bromate in Drinking Water
The Thermo Scientific Dionex IonPac? AS24 is a high-capacity hydroxide-selective anion-exchange column optimized for the separation of haloacetic acids (HAAs) as well as a variety of environmental anions. The capacity and selectivity enables analysis of haloacetic acids in drinking water at low-μg/L concentrations. The Dionex IonPac AS24 2 × 250 mm column is specifically designed for separation of haloacetic acids in drinking water prior to MS or MS/MS detection and is the specified column in US EPA Method 557.
Specified column for US EPA Method 557 (2 × 250 mm)
High capacity: 140 μeq per column (2 × 250 mm)
Determine HAAs in high-ionic strength matrices without sample pretreatment
Column selectivity is optimized for a 15 oC operating temperature
Compatible with HPLC organic solvents
Used as second dimension column in 2-D method for bromate in US EPA Method 302.0 (2 × 250 mm)
Extended application capabilities providing excellent separation of environmental anions
| Thermo Scientific Dionex IonPac? AS24 Anion-Exchange Column Specifications | |
|---|---|
| Substrate Characteristics: | Bead Diameter and Pore Size: 7 μm (2 × 250 mm); super macroporous resin (2000 ?) 11 μm (2 × 50 mm); microporous resin (<10 ?) Crosslinking (%DVB): 55% |
| Ion Exchange Group: | Functional Group: Alkanol quaternary ammonium ion |
| Functional Group Characteristics: | Ultralow hydrophobicity |
| Capacity: | 140 μeq (2 × 250 mm analytical column) 1.5 μeq* (2 × 50 mm guard column) *Guard is packed with a low-capacity microporous resin. |
| Column Construction: | PEEK? with 10-32 threaded ferrule style end fittings. All components are nonmetallic. |
| Dimensions: | Dionex IonPac AS24 Analytical Column: 2 × 250 mm Dionex IonPac AG24 Guard Column: 2 × 50 mm |
| Maximum Operating Pressure: | 3000 psi |
| Mobile Phase Compatibility: | pH 0–14; 0–100% HPLC solvents |
