A water heavy metal detection agent

Abstract

The invention relates to the field of heavy metal detection, and discloses a heavy metal detection agent in water. The detection agent is composed of the following components and parts by weight: 30-50 parts of iron ferric oxide nano-magnetic particles, 30-50 parts of polyethylene glycol chitosan 10-25 parts of graft and dispersant; wherein the polyethylene glycol-chitosan graft is coated on the surface of iron ferric oxide nano-magnetic particles, and the grafting molar ratio of polyethylene glycol to chitosan is 1:1. The water heavy metal detection agent of the present invention has good water solubility, is easy to disperse in water bodies, and has strong adsorption capacity for heavy metals. After the heavy metals are enriched and explained, they can be simply recovered and detected by magnetic means, and there are few residues in water bodies. The ingredients used are non-toxic and harmless. , safe and environment-friendly, and the composition of the detection agent has no influence on the detection signal, it is a water heavy metal detection agent suitable for industrial production and application.

Description

technical field [0001] The invention relates to the field of heavy metal detection, in particular to a water heavy metal detection agent. Background technique [0002] The rapid development of economy and industrial production has caused many pollution problems, especially heavy metal pollution. Heavy metals form a circular chain in the human body and eventually cause serious diseases. There have been many reports on the detection of metal ions, such as flame atomic absorption (FAAS), inductively coupled-plasma mass spectrometry (ICP-MS), inductively coupled-plasma emission spectroscopy (ICP-OES), electrothermal atomic absorption spectroscopy (ETAAS) and other methods. However, there are still many problems in using these detection methods to directly detect water bodies, because elements such as mercury, arsenic, selenium, antimony, and bismuth exist in trace amounts in water bodies. Therefore, there is a need for a heavy metal detection agent suitable for water, which ca...

AI Technical Summary

Problems solved by technology

However, there are still many problems in using these detection methods to directly detect water bodies, because elements such as mercury, arsenic, selenium, antimony, and bismuth exist in trace amounts in water bodies. Therefore, there is a need for a heavy metal detection agent suitable for water, which can enrich heavy metals in water without affecting the detection signal.