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. 2022 Dec 16;22(24):9938. doi: 10.3390/s22249938

Table 2.

The results of the recovery tests obtained by electrochemical sensing and the GC/MS-MS for MP.

Sample Spiked Concentration GC/MS-MS Recovery RSD Electrochemical Sensing Recovery RSD
Bok choy 1.00 ppm 0.97 ppm 97.0% 1.90% 0.98 ppm 98.0% 4.71%
Strawberry 0.70 ppm 0.66 ppm 94.3% 1.28% 0.67 ppm 95.7% 3.96%