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A novel sorbent for simultaneous separation of cadmium and copper was prepared by functionalizing SBA-15 nanoporous silica with diphenylcarbazide. A solid-phase extraction method using the above sorbent has been developed to separate and concentrate trace amount of cadmium and copper ions from environmental samples by flame atomic absorption spectrophotometry measurements. The optimum experimental...
A new ion imprinted polymer (IIP) for ruthenium recognition/pre-concentration was prepared via bulk polymerization using methacrylic acid as the functional monomer and ethylene glycol dimethacrylate as the cross-linking agent in the presence of Ru(III)–allyl acetoacetate complex as a template. The synthesized IIP was used as a new support for solid phase extraction (SPE) of ruthenium from environmental...
A new simple, rapid and efficient sample pretreatment technique for simultaneous extraction and preconcentration was developed. In this study, solvent-based de-emulsification dispersive liquid–liquid microextraction (SD-DLLME) was developed for preconcentration and highly sensitive determination of Pd(II) using the electrothermal atomic absorption spectrometry. The extraction of Pd(II) was performed...
The paper reviews the subject literature concerning analytical procedures routinely sed for monitoring polybrominated diphenyl ethers (PBDE) in environmental samples.It describes and summarizes subsequent stages of analytical procedure including sample collection and preparation, extraction, clean-up and final determination. Different approaches with their advantages and limitations are presented...
A new fluorescent and colorimetric probe RCu1 with ultra-sensitivity (detection limit is 4.7nM (3σ)) was developed. It is based on a rhodamine B derivative modified with a functionalized 8-hydroxyquinoline group as a copper-binding site which greatly increases the affinity for Cu 2+ . Cu 2+ acts not only as a selective recognizing guest but also a hydrolytic promoter. RCu1 showed single-selectively...
A novel lab-on-valve system has been developed for strontium determination in environmental samples. Miniaturized lab-on-valve system potentially offers facilities to allow any kind of chemical and physical processes, including fluidic and microcarrier bead control, homogenous reaction and liquid–solid interaction. A rapid, inexpensive and fully automated method for the separation and preconcentration...
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