Dionex IonPac ICE-AS6 离子排斥柱
Thermo Scientific? Dionex? IonPac? ICE-AS6 分析和保护柱可对复杂样品或高离子强度样品中的脂肪族有机酸和醇类进行快速分析，并提供一致可靠的结果。 此款色谱柱使用带磺酸基团和羧酸基团、亲水性适中的树脂，用于改善在测定包括食品和饮料、生物样品、工业加工用酒和废水在内样品中脂肪族有机酸和醇类的选择性。
注： 高容量 Dionex IonPac AS11-HC 柱推荐用于测定复杂样品基质或未表征样品中的 有机酸和无机阴离子。
优异的色谱分析性能
Dionex IonPac ICE-AS6 可改善分析羧酸和醇类物质的峰效率和选择性。 具体来说，产品：
通过 pKa、大小和疏水性差异分离离子化程度较弱的酸
将强酸阴离子（如氯化物和硫酸盐）在死时间洗脱，以防止它们妨碍有机酸的定量
可实现有难度的分离，包括从柠檬酸盐中分离酒石酸盐，从乳酸盐和甲酸盐中分离乙醇酸盐，从苹果酸盐中分离乳酸盐以及从丁二酸盐中分离甲酸盐
兼容任何典型强酸淋洗液和多种检测器，包括 安培、光度和示差折光检测器
使用 HPLC 溶剂控制对高分子量酸的疏水保留，或进行有效的柱清洁
利用抑制型电导检测提高灵敏度
Dionex IonPac ICE-AS1 柱应与 Dionex Anion MicroMembrane? 离子排阻抑制器 (AMMS? ICE 300) 联用，后者是一款低死体积的高容量淋洗液抑制器。
AMMS? ICE 300 抑制器在增加分析物电导率的同时可降低淋洗液的背景电导率。
用 途 和 特 点 ：
IonPac ICE-AS6离子排斥 柱 用 于 分 离 复 杂 基 体 ， 或 高 离 子 强 度 样 品 中 有 机
酸和醇类。树脂的磺酸基和羧基有利于一，二，三元羧酸通过氢键保留；适于分离羟基羧酸及脂肪醇。
Dionex IonPac ICE-AS6 离子排斥柱
订货信息：
| 分析柱 | |
| IonPac ICE-AS6 Analytical Column | 079798 |
The IonPac? ICE-AS6 ion-exclusion column is designed for fast analysis of aliphatic organic acids (including hydroxyl-substituted organic acids) and alcohols in complex or high-ionic-strength samples, including foods and beverages, biological samples, fermentation baths, industrial process liquors, and wastewaters. The ICE-AS6 column is ideally suited for most applications performed on the ICE-AS1 column.
Use the ICE-AS6 column for organic acids in complex sample matrices.
Use the ICE-AS1 column for the fast separation of organic acids.
The ICE-AS6 column provides improved peak efficiencies and selectivity for carboxylic acids and alcohols. The weakly ionized acids are separated by pKa differences, size, and hydrophobicity. Strong acid anions such as chloride, oxalate, and sulfate elute in the void and do not interfere with the quantification of the organic acids.
The ICE-AS6 column can be used with any typical strong acid eluent and a wide range of detectors, including conductivity, amperometry, photometry, and refractive index to determine aliphatic organic acids. Use the AS11 for fast analysis of organic acids and inorganic anions in well-characterized samples. Use the high-capacity IonPac AS11-HC column for organic acids and inorganic anions in complex sample matrices or uncharacterized samples.
Note: Use the Anion MicroMembrane? Ion-Exclusion Suppressor (AMMS? ICE 300) with the ICE-AS6 column.
| IonPac ICE-AS6 Ion-Exclusion Column Specifications | |
|---|---|
| Dimensions | IonPac ICE-AS6 Analytical Column: 9 × 250 mm |
| Maximum operating pressure | 5.6 MPa (800 psi) |
| Mobile phase compatibility | pH 0–7 (Use eluents containing only hydronium ion as the cation. Avoid eluents containing sodium, potassium, etc.); 0–15% HPLC solvents |
| Functional group characteristics | Ion-Exchange Group: Sulfonic and carboxylic acid Hydrophobicity: Medium low |
| Capacity | 27 meq (9 × 250 mm analytical column) |
| Substrate characteristics | Bead Diameter: 8 μm Bead Type: Microporous Cross-Linking (%DVB): 8% |
| Column construction | PEEK with 10-32 threaded ferrule-style end fittings. All components are nonmetallic. |
Separation of low-molecular-weight organic acids using the IonPac ICE-AS6 column.
Determination of trace organic acids in grape juice using suppressed conductivity detection.
Ion exclusion allows the determination of organic acids in sulfuric acid and eliminates sulfate interference.
Determination of strongly ionized organic acids using UV detection.
| Product Data Sheets | |
|---|---|
 | IonPac ICE-AS6 Ion-Exclusion Column Data Sheet |
| IonPac ICE-AS6 Analytical Column Manual |
| Technical Notes | |
|---|---|
| TN 46: Determination of Trace Anions in Concentrated Glycolic Acid |
| TN 44: The Determination of Trace Anions in Concentrated Phosphoric Acid |
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