.safetyRow { clear: both; } .safetyLeft { width: 210px; float: left; }  PubChem Substance ID 24887640 Properties: Related Categories Analytical/Chromatography, Biochemicals and Reagents, Detergents, Detergents N to Z, GC Stationary Phases, Gas Chromatography (GC), Non-Ionic Detergents, Packed GC Columns and Components More... grade   stationary phase for GC description   block copolymer of polyethylene and polypropylene glycol   non-ionic mol wt   mol wt ~8350 packaging   bottle of 50 g application(s)   gas chromatography (GC): suitable matrix active group   Synperonic PE/F68 phase Description: General description Synthesized specifically to be purer, of narrow molecular weight range, and without trace catalysts or impurities for use as a GC stationary phase. 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. Synperonic PE/F68 is a block copolymer of polyethylene and polypropylene glycol and it is mostly used as surfactant. Application It has been used in preparation of surfactant solution while synthesising sunscreen nanoparticles embedded in lipid matrices; to understand the encapsulation effect of UV molecular absorber into lipid nanoparticles. Safety: Symbol    GHS07 Signal word  Warning Hazard statements  H319 Precautionary statements  P305 + P351 + P338 Personal Protective Equipment  Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter RIDADR  NONH for all modes of transport WGK Germany  2 RTECS  MD0911050