A　method　is　described　for　the　functionalization　of　magnetic　carbon　nanotubes　to　recognize　aristolochic　acid　and　.　3-Glycidyloxypropyltrimethoxysilane　was　used　as　a　coupling　agent　to　immobilize　adenine　on　a　solid　support.　The　morphology　and　structure　of　adenine-coated　magnetic　carbon　nanotubes　was　investigated　using　transmission　electron　microscopy　(TEM),　scanning　electron　microscopy　(SEM),　X-ray　diffraction　(XRD)　and　a　vibrating　sample　magnetometer　(VSM).　The　adsorption　performance　of　the　adenine-coated　magnetic　carbon　nanotubes　was　evaluated　via　adsorption　isotherms,　the　kinetics　and　selectivity　tests.　The　adsorption　capacity　of　the　adenine-functionalized　sorbent　for　aristolochic　acid　was　determined　to　be　24.5　μg　mg−1.　By　combining　magnetic　solid　phase　extraction　with　HPLC　detection,　a　method　was　developed　to　enrich　and　detect　aristolochic　acids　used　in　traditional　Chinese　medicine.　A　satisfactory　recovery　(92.7　-　97.5%　for　aristolochic　acid　and　92.6　-　99.4%　for　aristolochic　acid　)　and　an　acceptable　relative　standard　deviation　(　©　2020