21028

GC 固定相

phase Carbowax 1540, pkg of 50 g

• 分類程式碼代碼: 23151817

屬性

• 包裝: pkg of 50 g
• 品質等級: 100
• 參數: 50-175 °C temp. range
• 技術: gas chromatography (GC): suitable
• 基質活性組: Carbowax 1540 phase
• 溶解度: chloroform: soluble
• 柱類型: packed GC

描述

一般說明

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, peak tailing are few parameters that should be considered before choosing a stationary phase. Carbowax 1450 was also known as Carbowax 1540, it is a water-soluble solid wax with a melting temperature range of 43-46°C. It is suitable for cytological applications.

應用

Carbowax 1540 stationary phase may be used for studying the correlation between retention index and Van der Waals′ volume in homologous series of n-alcohols, n-aldehydes and esters.

僅套裝組件

• Carbowax^® 1540

安全資訊

• 儲存類別代碼: 10 - Combustible liquids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: 281.5 °F - closed cup
• 閃點（°C）: 138.6 °C - closed cup
• 個人防護裝備: Eyeshields, Gloves, type N95 (US)