At present, the problem of heavy metal pollution in water in China is very prominent. Heavy metals enter the water body through mining, metal smelting, metal processing and chemical production wastewater, fossil fuel combustion, the application of pesticides, fertilizers and domestic waste, and other natural sources such as geological erosion and weathering. Heavy metals are highly toxic, are not easily metabolized in the environment, are easily enriched by organisms, and have biological amplification effects. They not only pollute the water environment, but also seriously threaten the survival of humans and aquatic organisms.
The heavy metal elements that pollute the ocean mainly include mercury, cadmium, lead, zinc, chromium and copper. The sea area is polluted by heavy metals, and it is difficult to treat it. Prevention should be the mainstay to control the source of pollution; improve production processes, prevent the loss of heavy metals, recycle heavy metals in the three wastes, and effectively implement relevant environmental protection regulations. Monitoring and surveillance of sea areas is an important measure to prevent pollution of sea areas.
Shimadzu has been paying attention to environmental pollution for a long time, and already has a wealth of heavy metal element detection methods and application experience, providing a series of corresponding solutions for users in various countries. This time, I will introduce the direct analysis method of trace elements in seawater based on the electric heating atomic absorption method introduced by Shimadzu Corporation. The graphite furnace atomizer GFA-EX7 used in the analysis uses digital temperature control and digital gas control. By modifying the graphite furnace and piping, samples with high matrix content can be analyzed with high precision. This article introduces the analysis of trace elements (Pb, Cd, Cr) in seawater.
About Shimadzu
Shimadzu International Trading (Shanghai) Co., Ltd. is a local legal person company established in China in 1999 by Shimadzu Corporation to expand the scale of its business in China.
At present, Shimadzu International Trading (Shanghai) Co., Ltd. has 12 branches throughout China, and its business scale is continuously expanding. There are analysis centers in Beijing, Shanghai, and Guangzhou; a network of sales agents covering 30 provinces across the country; and more than 60 technical service stations to build a complete system for providing good services to users.
As a global production base, Shimadzu has built a product production and supply system not only for Chinese customers, but also for the world, and strives to build a product production system that meets the requirements of the Chinese market. With the goal of "for the health of mankind and the earth", Shimadzu will always strive to provide users with more advanced products and more satisfactory services.
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