Rapid detection method for content of micro-plastics in water body and application
A technology for quantitative detection of microplastics, applied in the field of environmental pollutant detection, can solve the problems of overlapping phase change signals and the inability to identify other types of plastics, and achieve the effects of reducing interference, avoiding quality loss, and improving accuracy
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Embodiment 1
[0035] A digestion solution for separating microplastics, including 11g / L potassium hydroxide, 0.6g / L sulfathiazole sodium and 0.3g / L naphthaleneacetamide.
[0036] A method for separating microplastics in water samples, comprising:
[0037] Collection of water samples: In September 2019, seawater samples were collected in the Dongji Island aquaculture area, and the sampling point was selected from the Dongji Miaozi Lake aquaculture area. The seawater was manually collected using a glass water collector with a scale, and about 5L of seawater was collected. The seawater was concentrated to 1L with a 25μm screen on site, and transferred to a brown glass bottle for dark storage and brought back as soon as possible. Shake well in a sealed state, filter the water sample, rinse the filtered filter membrane with 300mL of the digestion solution prepared in this example (the prepared digestion solution is used after filtering with a 1 μm glass microfiber filter membrane), and place the...
Embodiment 2
[0039] A digestion solution for separating microplastics, including 11g / L potassium hydroxide and 0.6g / L sulfathiazole sodium. All the other parts are completely consistent with Example 1.
Embodiment 3
[0041] A digestion solution for separating microplastics, including 11g / L potassium hydroxide and 0.3g / L naphthaleneacetamide. All the other parts are completely consistent with Example 1.
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