Development of a Low-Cost Multi-Wavelength Inline Detector for Slug Detection in Continuous Flow

27 January 2023, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Herein we describe our expansion upon previously published low-cost inline detectors. Using an Adafruit AS7341 10-channel light/colour sensor, a Raspberry Pi, and a white LED we were able to simultaneously monitor infrared and multiple visible spectrum absorption wavelengths. This allowed even challenging colourless slugs within a colourless carrier solvent to be detected and characterised as they progressed through a flow reactor. The sensor data is displayed in graphical form in real-time and stored on the device for reference afterwards.

Keywords

Flow Chemistry
Open Hardware
Inline Detection

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