Silica modified with 2,6-diacetylpyridine-monosalicyloylhydrazone: A novel and selective organic–inorganic sorbent for separation of molybdenum ions in a newly designed reactor

摘要: Abstract A novel silica based organic–inorganic hybrid material (DAPSH–APTES@SiO 2 ) was synthesized by grafting of 2,6-diacetylpyridine-monosalicyloylhydrazone (DAPSH) on amino-functionalized (APTES@SiO ), and applied as a selective solid sorbent for on-line separation molybdenum using newly designed reactor. The characterized Scanning electron microscopy (SEM), 13 C CPMAS NMR spectroscopy, Fourier transform infrared (FT-IR) elemental analysis, BET surface area analysis X-ray diffraction (XRD) studies. Several parameters concerning adsorption behavior, including sample pH, volume, flow rate, type eluent, effect ionic interference, etc. were evaluated effective molybdenum. Langmuir model Freundlich have been used to interpret the Mo(VI) ions sorbent. precision calculated relative standard deviation ( n  = 5) less than 3% concentration 2.0 μg mL −1 with detection limit 0.5 ng mL flame atomic absorption spectrometry (FAAS). developed method successfully highly sensitive determination in water samples plant food stuffs. accuracy validated certified reference (CRM) satisfactory results. In addition, reactor automated modes opens up new avenue large scale extraction recyclable short duration time.