Development of new metal-chelate sorbent based on stearate nickel (II)

The work is devoted to the preparation and characterization of new metal-chelate sorbent based on stearate nickel(II). The collapsed structure on the basis of nickel stearate have been received by the method of Langmuir-Blodgett. Its surface properties have been studied: data obtained on the structure surfaces using scanning electron microscopy, the zeta potential is determined by the Helmholtz-Smoluchowski theory without introducing amendments. Also the sorption properties of the new sorbent have been investigated: the sorption isotherm of albumin chicken on metal-chelate sorbent based nickel stearate have been shown. Also, it have been presented that these structures have the necessary surface and sorption properties for their use during the sample preparation of toxic substances containing in its composition different active heteroatoms. As such compounds, we selected the widely used pesticides: nitrogen (glyphosate and its major metabolite aminomethylphosphonic acid) and chlorine (main persistent organic pollutant - dieldrin). Also the method of inductively coupled plasma mass spectrometry and gas chromatography with electron capture detector have been used in our study.