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. 2023 Sep 11;20(12):1513–1526. doi: 10.7150/ijms.87995

Table 1.

Concentration of controlled drugs and toxic substances for the validation of the Surestep Drug Screen Card I Kit.

Toxic substances Concentration (µg/ 10 ml) Urine test (POS/NEG) Breastmilk test (POS/NEG)
Control 0 NEG NEG
Controlled drugs
Pentobarbital (BAR) 3 POS POS
Fentanyl (OPI) 3 POS POS
Midazolam (OPI) 3 POS POS
Buprenorphine (BZD) 0.1 POS POS
Morphine (OPI) 3 POS POS
Buenzodiacephine (BZD) 3 POS POS
Toxic substances
Cocaine (COC) 25 POS POS
Marihuana (THC) 15 POS POS
Ecstasy (M-AMP) 10 POS POS
Lysergid (LSD) 10 POS POS
Crystal (M-AMP) 10 POS POS

The abbreviation POS in rows three and four signifies that the qualitative test yielded a POSITIVE result for that concentration of the toxic substances or controlled drug.

The abbreviation NEG in rows three and four signifies that the qualitative test yielded a NEGATIVE result for that concentration of the toxic substances or controlled drug.

The concentrations used for the substances were determined according to the minimum detectable values of the kit used 45.