Smartphone Technology – Instrumentation and Applications

Scheeline, Alexander

doi:10.1002/9781119636489.ch9

Cited by 2 publications

(1 citation statement)

References 55 publications

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“…Today, using a single chemical reagent such as Marquis [44] may not be adequate to properly determine fentanyl in a mixture, or may provide a false-positive result. In spite of these limitations, interest in colorimetric tests has grown recently due to the ability to use low-cost devices and smartphones as automated color "readers" [45][46][47][48][49][50] to improve limits of detection and remove subjectivity of the analysis.…”

Section: Colorimetric Analysesmentioning

confidence: 99%

Field‐portable detection of fentanyl and its analogs: A review

Crocombe,

Giuntini,

Schiering

et al. 2023

Journal of Forensic Sciences

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The need to detect fentanyl and its analogs in the field is an important capability to help prevent unintentional exposure or overdose on these substances, which may result in death. Many portable methods historically used in the field by first responders and other field users to detect and identify other chemical substances, such as hazardous materials, have been applied to the detection and identification of these synthetic opioids. This paper describes field portable spectroscopic methods used for the detection and identification of fentanyl and its analogs. The methods described are automated colorimetric tests including lateral flow assays; vibrational spectroscopy (mid‐infrared and Raman); gas chromatography–mass spectrometry; ion mobility spectrometry, and high‐pressure mass spectrometry. In each case the background and key details of these technologies are outlined, followed by a discussion of the application of the technology in the field. Attention is paid to the analysis of complex mixtures and limits of detection, including the required spectral databases and algorithms used to interrogate these types of samples. There is also an emphasis on providing actionable information to the (likely) non‐scientist operators of these instruments in the field.

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