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. 2021 May 19;21(10):3532. doi: 10.3390/s21103532

Figure 3.

Figure 3

Block diagram showing typical microAnalyzer operation, using the microplastics application as an example. (A) MP samples are collected and adsorbed onto a preconcentrator. Sampling time can be controlled via pump duration. (B) After sampling, the preconcentrator is heated, releasing the sample; the sample travels through the GC column (with ambient air as carrier gas), and eluted compounds are detected via the DMS sensor.