6533b7d9fe1ef96bd126c335

RESEARCH PRODUCT

Analysis of hybrid silica materials with the aid of conventional NMR and GC/MS.

Andrea OlmosTeresa VareaMaría Elena González-núñezRossella Mello

subject

HydrogenChemistryInorganic chemistryAnalytical chemistrychemistry.chemical_elementHydrogen fluorideChlorideAnalytical Chemistrychemistry.chemical_compoundSodium hydroxidemedicineGas chromatographyMethyleneHybrid materialDissolutionmedicine.drug

description

Two simple and straightforward procedures for determining the organic content of hybrid silica materials by means of conventional NMR and GC/MS techniques are described. The methods involve dissolving the hybrid material either in a concentrated solution of sodium hydroxide in deuterated water containing a suitable reference or in a solution of hydrogen fluoride in water and extracting with methylene chloride. These methods constitute useful routine techniques for obtaining immediate information concerning both the amount and chemical composition of the organic compounds on the silica surface.

10.1021/ac801248mhttps://pubmed.ncbi.nlm.nih.gov/19551951