Research Progress of Magnetic Materials in Solid Phase Extraction of Mercury
Mercury is widely distributed in nature.With the migration and transformation of water bodies,soil,atmosphere and biosphere,and accumulation in living organisms,the human body can cause various diseases due to direct or indirect contact with mercury-conta minated water sources,soil,food,etc.Mercury is considered It is one of the most harmful heavy metal elements to humans and the environment.Compared with pollution from other organic compounds,some organic compounds can be purified through natural physical,chemical or biological processes to reduce their harmfulness,but heavy metals(especially mercury)are difficult to degrade and eli minate in the environment.However,the mercury content in general samples is at trace or ultra-trace levels,and it is difficult to accurately detect the form and content of mercury.Therefore,the sample is currently pre-processed before detection-mercury is separated and enriched.This article briefly reviews the research progress of magnetic materials in the field of mercury separation and enrichment-solid phase extraction.
magnetic materialsseparation and enrichmentsolid phase extractionheavy metalsresearch progress
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