21006

Apiezon^® L

phase Apiezon L, bottle of 25 g

• 别名: GC 固定相
• UNSPSC代码: 41115717

属性

• 表单: solid
• 包装: bottle of 25 g
• 参数: 50-300 °C temp. range
• 技术: gas chromatography (GC): suitable
• 基质活性基团: Apiezon L phase
• 溶解性: chloroform, toluene: soluble
• 色谱柱类型: packed GC

说明

一般描述

合成的产品更纯净，分子量范围窄，不含用作 GC 固定相的痕量催化剂或杂质。

GC methods are divided into two classes depending on the nature of stationary phases; gas-solid chromatography (GSC) and gas-liquid chromatography (GLC). GSC has solid adsorptive material and solute particles are removed from mobile phase by electrostatic forces. GLC has a thin layer of liquid coated or bonded on the surface of an inert particle or on the walls of the column where solute particles are retained in the liquid phase based on their partition coefficients. The primary necessity of a stationary phase is to provide sample separation sustaining phase integrity over a reasonable period of time. It should be stable for the chemical and thermal changes. Selectivity, peak symmetry, analysis time, degree of separation and peak tailing are a few parameters which are considered while choosing a stationary phase. Apiezon L is basically purified hydrocarbon grease which is suitable as a liquid phase for GC analysis. It is considered as one of the most selective phase for Polychlorinated Biphenyls (PCB) congeners.

应用

Apiezon L may be used as stationary phase to determine the retention indices of benzene and benzene derivatives on the basis of their molecular structure using GC equipped with a thermal conductivity detector.

安全信息

• 储存分类代码: 13 - Non Combustible Solids
• WGK: WGK 3
• 闪点(°F): Not applicable
• 闪点(°C): Not applicable
• 个人防护装备: Eyeshields, Gloves, type N95 (US)