Micellar extraction was applied to isolate famotidine from aqueous samples. This drug is an H2 receptor antagonist used for the treatment of stomach diseases. The process was performed with a mixture of anionic sodium dodecylsulfate and nonionic Triton X-114 surfactants. The effect of different parameters on the efficiency of the micellar extraction such as electrolyte and surfactant concentration, pH of sample, temperature, shaking and centrifugation time was investigated. The influence of foreign substances on a studied process was tested. The elaborated procedure was applied for HPLC-UV determination of famotidine in natural water samples. The calibration graph was recorded in the range 1.35-37.12 μg mL-1 of the studied compound. The repeatability of the method was equal to 7.4%. The limit of detection and quantification values for the determination of famotidine by using the proposed method amounted to 0.40 and 1.25 μg mL-1, respectively.
Keyphrases
- solid phase extraction
- molecularly imprinted
- ionic liquid
- simultaneous determination
- high performance liquid chromatography
- ms ms
- solid state
- mass spectrometry
- tandem mass spectrometry
- emergency department
- minimally invasive
- drinking water
- liquid chromatography
- atomic force microscopy
- convolutional neural network
- combination therapy
- drug induced
- neural network