▎ 摘　　要

NOVELTY - Detecting malachite green and crystal violet in water using magnetic dispersed solid-phase extract ferroferric oxide/graphene oxide nanoparticles includes taking 50 mg graphene oxide, adding 50 mL ultra-purified water, ultrasonic treating, nitrogen deaerating, adding 25 mL ferrous sulfate heptahydrate, magnetic stirring, adding 50 mL ferric chloride hexahydrate and excess ammonia, reacting at 85 degrees C for 50 minutes under nitrogen atmosphere, washing with ultra-purified water, removing excess raw material, adjusting pH to neutral, and adding 50 mL ultra-purified water. USE - Method for detecting malachite green and crystal violet in water using magnetic dispersed solid-phase extract ferroferric oxide/graphene oxide nanoparticles (claimed). DETAILED DESCRIPTION - Detecting malachite green and crystal violet in water using magnetic dispersed solid-phase extract ferroferric oxide/graphene oxide nanoparticles comprises taking 50 mg graphene oxide, adding 50 mL ultra-purified water, ultrasonic treating, nitrogen deaerating, adding 25 mL ferrous sulfate heptahydrate, magnetic stirring, adding 50 mL ferric chloride hexahydrate and excess ammonia, reacting at 85 degrees C for 50 minutes under nitrogen atmosphere, washing with ultra-purified water, removing excess raw material, adjusting pH to neutral, adding 50 mL ultra-purified water to obtain suspension, taking water samples, filtering, taking 50 mL filtrate, adjusting pH to 6 using glacial acetic acid and ammonia, mixing 20 mL treated filtrate and 0.134 ferric oxide/graphene oxide composite nanomaterial, absorbing for 15 minutes, solid-liquid separating, magnetic separating, adding acetonitrile/glacial acetic acid eluent, ultrasonic treating, separating, filtering, and detecting by HPLC.