DIONEX/英国 品牌
代理商厂商性质
北京市所在地
ZODIAC C18(ODS) 7um 液相色谱柱
面议ShimNex S-C18-PAH多环芳烃专用柱
面议ShimNex S-C18-PR经济型农残专用柱
面议ShimNex S-Sil-SB大豆专用柱
面议ShimNex S-SAX-CS 硫酸软骨素钠专用柱
面议ShimNex S-NH2-TMG甜菜碱专用柱
面议ShimNex S-NH2-SUG糖类专用柱
面议ShimNex HE SCX液相色谱柱
面议ShimNex HE SAX液相色谱柱
面议ShimNex HE Sil液相色谱柱
面议ShimNex HE NH2液相色谱柱
面议ShimNex HE CN液相色谱柱
面议使用 Thermo Scientific? Dionex? IonPac? AS24 分析柱和保护柱,可分离饮用水样品中的卤乙酸和溴酸盐。 这种高容量氢氧化物选择性阴离子交换柱专为在质谱检测前端,分离饮用水中的卤乙酸和溴酸盐而研制。 2x250mm 为美国 EPA 方法 557 中的柱规格。 Dionex IonPac AS24 的柱容量和选择性能够确保对饮用水中的低至 μg/L (ppb)级 浓度卤乙酸进行分析。 该柱也非常适合开发特殊的应用方法,能对环境阴离子,包括复杂基质中无机阴离子、卤氧化物、含氧阴离子和有机酸等实现分离。
色谱分析性能优异
美国 EPA 方法 557 (2x250mm)
高柱容量(140μeq/柱,2x250mm)使得进样复杂基质时不会出现色谱柱过载,同时又能始终对低浓度分析物获得*的峰形
当测定高离子强度基质中的卤乙酸时,不需进行样品预处理
可在美国 EPA 方法 302.0 所述的关于溴酸盐的 2D 方法中用作第二维色谱柱(2x250 mm)
尤其适合在梯度洗脱下使用 Reagent-Free? 离子色谱(RFIC?)系统开发专门应用方法
可在环境温度或更高温度下运行;经过优化选择在 15oC 的操作温度下可确保卤乙酸的回收率具有良好重现性
与 HPLC 有机溶剂兼容,操作灵活、易于清洗
Dionex IonPac AS24 阴离子交换柱 064153
订货信息:
Dionex IonPac AS24 阴离子交换色谱柱
分析柱 | |
IonPac AS24 Analytical Column (2 x 250 mm) | 64153 |
保护柱 | |
IonPac AG24 Guard Column (2 x 50 mm) | 64151 |
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 |