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. 2025 Sep 11;13:1645843. doi: 10.3389/fchem.2025.1645843

TABLE 5.

Technical specifications of the multi-channel prohibited substance sampling detector.

Technology MIT and SPR
Detectable substance Methamphetamine, morphine, and heroin (Add as needed)
Sampling method Sample liquids such as saliva, urine, domestic sewage, and natural water samples
Sensitivity 10−13 mol/L
Alarm method Sound and light alarm
Analysis time 6–10 mins
False alarm rate <1% (keep the temperature constant)