Study of CaUO(CO) complexes using CE-ICP-MS with polyetheretherketone (PEEK) capillaries.

The formation constants of CaUO(CO) complexes were determined directly using capillary electrophoresis coupled with inductively coupled plasma mass spectrometry (CE-ICP-MS) in 0.1 M NaCl and at room temperature. Instead of conventional fused silica, polyetheretherketone (PEEK), a neutral organic material, was used as the capillary material to avoid interactions between uranyl and silica.

A Highly Efficient BODIPY Based Turn-off Fluorescent Probe for Detecting Cu.

Based on boron-dipyrromethene (BODIPY), taking 2-hydroxy-N-(2-hydroxyphenyl)benzamide as recognition site, a new fluorescent probe HHPBA-BODIPY aimed at sensitively detecting Cu ions was designed, synthesized and characterized.The emission spectra of HHPBA-BODIPY exhibited an intensive green fluorescence around 510 nm, with a maximum absorption near 500 nm. When Cu ions are present, the fluorescence at 510 nm can be quenched with a good linearity between the copper ion concentrationand the fluorescence intensity and the detection limit is 0.

A BODIPY Based Fluorescent Probe for the Rapid Detection of Hypochlorite.

A new boron-dipyrromethene (BODIPY) fluorescent dye aimed at sensitively detecting hypochlorite anion (ClO) has been designed, synthesized and characterized. The probe is comprised of a BODIPY fluorophore unit and a ClO specific reactive group of amidoxime. The addition of hypochlorite results in a red-shift of absorption and emission spectra of the probe accompanied by a decrease of intensity and spectra changes (A and 1/I) of the probe can achieve a good linearity to the concentration of ClO.