A　simple　and　sensitive　electrochemical　sensor　which　was　constructed　with　alkoxy　silane　and　carbon　nanohorns　was　first　utilized　to　detect　some　food　borne　contaminants,　including　malachite　green,　sudans,　triclosan,　bisphenol　A.　Due　to　the　large　surface　area,　good　conductivity,　admirable　electrochemical　activity　of　carbon　nanohorns　and　excellent　immobility　of　alkoxy　silane,　the　synergistic　effect　root　from　the　easily　controlled　composition　of　organic-inorganic　hybrid　film　was　achieved.　The　present　work　demonstrated　this　functional　film　brings　advantageous　features　such　as　stable　and　strong　adherence　to　electrode　matrix　and　excellent　electrochemical　catalysis,　to　electrochemical　sensor　to　achieve　advanced　application.　By　choosing　triclosan　and　malachite　green　as　object,　their　kinetic　parameters　on　this　modified　electrode　were　calculated　and　the　relative　quantitive　protocols　were　established.　Compared　with　previous　reports,　the　designed　sensor　presented　lower　detection　limit,　higher　sensitivity　and　more　broad　linear　range.　This　electrochemical　platform　offered　a　useful　tool　for　the　on-site　determination　of　food　born　contamination.　(C)　2013　Elsevier　Ltd.　All　rights　reserved.