Shimadzu Application: Determination of Methylmercury and Ethyl Mercury in Farmland Soil by Acid Leaching-HPLC-ICP-MS

Time:2018/12/17 Pageviews:11 Share:

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Mercury and its compounds are environmental pollutants with chronic toxicity, and their forms are different in toxicity. Organic mercury is more toxic than inorganic mercury, especially methylmercury is hundreds of times more harmful than inorganic mercury. In the environment, especially inorganic mercury in the soil is easily converted to organic mercury by microbial and chemical action. The converted organic mercury is difficult to decompose and separate, easily migrates to the soil-planted crops, and enriches into the human body through the food chain, posing a threat to human health. Therefore, in addition to the need to determine the total mercury content, Shimadzu hplc vials the accurate quantitative analysis of different forms of mercury is also of great significance, and it is more accurate to assess the degree of heavy metal pollution and potential risks of the soil.

The HPLC-ICP-MS Shimadzu hplc vials combination technology has high separation ability and sensitivity, and is the main technology for morphological mercury analysis. This paper establishes the combination of Shimadzu high performance liquid chromatography LC-20Ai and inductively coupled plasma mass spectrometry ICPMS-2030. Method for the content of methylmercury and ethylmercury in farmland soils. The method used 0.5 mol/L nitric acid solution as the extracting agent. The pretreatment was simple and rapid, and the detection limit was low. The detection limits of methylmercury and ethylmercury were 0.16 μg/L and 0.21 μg/L, respectively. Simultaneous analysis of methylmercury and ethylmercury in farmland soils can be met.

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