Deep eutectic solvent-assisted synthesis of La–Ce hybrid nanorods for the colorimetric determination of tetracycline in foods

In this work, deep eutectic solvents were synthesized using l -threonine and cerium nitrate, and later lanthanum nitrate was doped to synthesize peroxidase-like La–Ce hybrid nanorods for the detection of tetracycline in milk, pork and honey.