21195-U

GC Stationary Phase

phase Polyethyleneimine, bottle of 50 g

• UNSPSC 코드: 23151817
• NACRES: SB.54

속성

• 포장: bottle of 50 g
• 파라미터: 0-175 °C temp. range
• 기술: gas chromatography (GC): suitable
• 기질 활성군: Polyethyleneimine phase
• solubility: acetone: soluble
• 컬럼 유형: packed GC

설명

일반 설명

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 to consider for choosing a stationary phase. Polyethyleneimine (PEI) is suitable for protein separation. It binds insistently to negative charged stationary phase. It is a pseudostationary phase which is also a cationic polymer.

Synthesized specifically to be purer, of narrow molecular weight range, and without trace catalysts or impurities for use as a GC stationary phase.

안전성 정보

• 픽토그램: GHS07,GHS09
• 신호어: Warning
• 유해 및 위험 성명서: H302,H317,H319,H411
• 예방조치 성명서: P261 - P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Skin Sens. 1
• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 2
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: dust mask type N95 (US), Eyeshields, Gloves