Table 1 Comparison of experimental results to literature reports
Lowest detected concentration of 37 fentanyl analogs in literature (ng/mL) | ||||||||
|---|---|---|---|---|---|---|---|---|
Hayes et al | BTNX Inc | Park et al | Bergh et al | |||||
BTNX Rapid Response lots DOA2206394, DOA2204104 | DanceSafe lots K2051226, K2021217 | BTNX rapid response** | BTNX rapid response | BTNX rapid response | Rapid self-test | One step | Nal von Minden | |
Fentanyl | 200 | 200 | 200 | 200 | 100 | 100 | 100 | 100 |
Acetyl fentanyl | 200 | 2,000 | 150 | 100 | 100 | 100 | 100 | 100 |
Acryl fentanyl | 2000 | 200 | – | – | 100 | 100 | 100 | 100 |
Alfentanil | Not detected* | 20,000 | – | Not detected‡ | Not detected† | Not detected† | Not detected† | Not detected† |
Benzodioxole fentanyl | 2000 | Not detected* | – | – | 1000 | 1,000 | Not detected† | 1000 |
Butyryl fentanyl | 200 | 200 | 700 | 100 | 100 | 100 | 100 | 100 |
Carfentanil | 2000 | Not detected* | 1000 | Not detected‡ | 1000 | 1000 | Not detected† | 1000 |
cis-3-methyl Fentanyl | 2000 | 2000 | – | – | 1000 | 1000 | 1,000 | 1,000 |
Crotonyl fentanyl | 2000 | 200 | – | – | 100 | 100 | 100 | 100 |
Cyclopropyl fentanyl | 2000 | 200 | – | – | 100 | 1000 | 100 | 100 |
Despropionyl-ortho-fentanyl | Not detected* | Not detected* | – | – | Not detected† | Not detected† | Not detected† | Not detected† |
Furanyl fentanyl | 2000 | 20,000 | 500 | Not detected‡ | 100 | 1000 | 100 | 100 |
meta-Fluorofentanyl | 2000 | 200 | – | – | 1000 | 1000 | 100 | 1000 |
Methoxyacetyl fentanyl | 200 | 2000 | – | – | 100 | 100 | 100 | 100 |
N-benzyl Furanyl norfentanyl | 2000 | 20,000 | – | – | 1000 | 1000 | 100 | 1000 |
Norcarfentanil | Not detected* | Not detected* | – | – | Not detected† | Not detected† | Not detected† | Not detected† |
Ocfentanil | 200 | 20,000 | 250 | – | 100 | 100 | 10,000 | 100 |
ortho-Fluorofentanyl | 2000 | 2000 | – | – | 100 | 1000 | 10,000 | 100 |
para-Chloroisobutyryl fentanyl | 2000 | Not detected* | – | 1000 | 1000 | 1000 | 1,000 | 1000 |
para-fluoro Cyclopropyl benzyl fentanyl | – | – | – | – | 100 | 1000 | 100 | 1000 |
para-Fluorobutyryl fentanyl (FBF) | 2000 | 200 | – | 100 | 1000 | 1000 | 100 | 100 |
para-Fluorofentanyl | 200 | 200 | 200 | – | 100 | 100 | 100 | 100 |
para-Fluoroisobutyryl fentanyl (FIBF) | 2000 | Not detected* | – | – | 100 | 100 | 100 | 100 |
para-methoxy-Butyryl fentanyl | 2000 | Not detected* | – | 200 | 1000 | 1000 | 10,000 | 1000 |
Remifentanil | Not detected* | Not detected* | 70,000 | – | 10,000 | 10,000 | Not detected† | 10,000 |
Senecioylfentanyl | 2000 | 20,000 | – | – | 100 | 1000 | 1000 | 100 |
Sufentanil | 20,000 | 20,000 | 100,000 | – | 10,000 | 10,000 | Not detected† | 10,000 |
Tetrahydrofuran fentanyl | 200 | not detected* | – | – | 100 | 100 | 100 | 100 |
Valeryl fentanyl | 2000 | 20,000 | 700 | 500 | 1000 | 1000 | 10,000 | 100 |
4-ANPP | Not detected* | Not detected* | – | 200 | – | – | – | – |
α-methyl Acetyl fentanyl | 200 | 2000 | – | 500 | – | – | – | – |
β-methyl Fentanyl | 2000 | 200 | 500 | 500 | – | – | – | – |
N-methyl Norfentanyl | 2000 | 200 | – | 500 | – | – | – | – |
Norfentanyl | 20,000 | 200 | – | Not detected‡ | – | – | – | – |
ortho-methyl Acetyl fentanyl | 2000 | 20,000 | – | 100 | – | – | – | – |
Phenyl fentanyl | 2000 | Not detected* | – | 500 | – | – | – | – |
Thiofentanyl | 2000 | 200 | – | 200 | – | – | – | – |