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In terms of environmental pollution, heavy metals mainly refer to metals or metalloids such as mercury, cadmium, lead, chromium, as well as general heavy metals with corresponding toxicity, such as copper, zinc, nickel, cobalt, tin, etc. Therefore, it is necessary to conduct heavy metal detection on it. Below are two detection methods briefly introduced.
（1） Atomic absorption spectroscopy
There are many methods for heavy metal detection, and atomic absorption spectroscopy can be used for analysis. Due to the emergence of computer technology and chemical technology, its accuracy can be improved. Through atomic absorption spectroscopy, it can simplify the operating procedures and save time in analysis. This is also a further expansion, and the main key can bring good effects.
（2） UV visible spectrophotometry
There are various methods for heavy metal detection, including heavy metals and color reagents, which are common compounds that may also exhibit heavy metal matching. This detection method uses ultraviolet light as a technique to generate colored compounds, which is currently a common detection method.