Cysteine modified Iron-samarium telluride composite for selective electrochemical sensing of codeine phosphate in real biological samples

Key Points

• Selective electrochemical sensing enables accurate detection of codeine phosphate in biological samples, from blood to saliva.
• Key evidence shows a sensitivity level that allows detection of very low concentrations of codeine phosphate, enhancing monitoring effectiveness.
• Analysis focused on a novel composite material made from cysteine and iron-samarium telluride, highlighting its unique properties in sensing.
• This method supports the development of efficient drug monitoring techniques; however, more real-world testing is required.