▎ 摘　　要

NOVELTY - Measuring trivalent antimony and pentavalent antimony by magnetic solid phase extraction-inductively coupled plasma mass spectrometry involves preparing raw materials, obtaining aqueous solution and raw material, then using coprecipitation method to synthesize magnetic graphene oxide particles, adsorbing trivalent antimony, adjusting the pH value of the aqueous solution, the magnetic graphene oxide selectively absorbs the trivalence antimony, measuring trivalent antimony and pentavalent antimony, using inductance coupling the concentration of trivalent antimony and total antimony by mass spectrometry, calculating to obtain the pentavalent antimony concentration by using the difference subtraction. USE - Method for measuring trivalent antimony and pentavalent antimony by magnetic solid phase extraction-inductively coupled plasma mass spectrometry. ADVANTAGE - The method is fast and convenient, simple and easy, and is suitable for quantitative determination of trivalent antimony and pentavalent antimony in environment water. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing halogen-free aqueous textile flame-retardant coating composition containing hyper branched polymer, which involves: (A) adding water in the dispersing kettle; (B) dispersing emulsifying agent; (C) stirring and mixing; (D) adding phosphorus-containing flame retardant, super-branched carbon forming agent, hydrophobic modified emulsion, film-forming agent, film-forming auxiliary agent, aluminum hydroxide and anti-freeze agent; (E) fully stirring to disperse, the dispersion particle diameter is less than 3m; (F) adding thickening agent and pH regulator to adjust the viscosity and pH value and fully stirring, at last; and (G) filtering to obtain the finished product.