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A new spectrophotometer for measurements in turbid liquids

Objective

The ability to analyse compounds within turbid/scattering liquids is very important in fields related to Environmental monitoring, Medical analysis, Pharmaceutical testing and Food processing. However, for turbid liquids that include dirty water, blood, milk as well as unfiltered beer, wine, oils etc, unwanted multiple scattering effects occur, preventing any measurement or introducing large errors. Thus, current commercially available spectrophotometers are not capable of measuring within such liquids and time-consuming dilution procedures are required (when possible), ultimately modifying the properties of the probed liquid. In this proposal, we will explore the possibility of commercializing a new spectrophotometer where unwanted effects from multiple light scattering are efficiently suppressed.
The instrument prototype used here is called Modu and is based on a new technology developed by the PI and his teams during the “Spray-Imaging” ERC-Starting Grant project. This technology is based on the use of a spatially modulated polychromatic light sheet (PCT pending) imaged from the side. This approach differs significantly from the transmission measurement commonly used in spectrophotometry. From some initial testing, it is found that the suggested technique provides fast, yet more accurate and reliable, characterization of turbid liquids, without the need for dilution. The proposed technology offers, then, a new solution to a variety of industrial problems including concentration measurements in turbid water and pharmaceuticals without any calibration; as well as assessing the colour and haze of unfiltered beverages such as beer, while keeping the sample intact. Thus, the technology and optical instrument proposed here is opening doors for a vast variety new measurement possibilities, including inline monitoring of turbid liquids.

Call for proposal

ERC-2020-PoC
See other projects for this call

Funding Scheme

ERC-POC-LS - ERC Proof of Concept Lump Sum Pilot
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Host institution

LUNDS UNIVERSITET
Address
Paradisgatan 5C
22100 Lund
Sweden
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 31 250

Beneficiaries (2)

LUNDS UNIVERSITET
Sweden
EU contribution
€ 31 250
Address
Paradisgatan 5C
22100 Lund
Activity type
Higher or Secondary Education Establishments
SPEC-IMAGING AB
Sweden
EU contribution
€ 118 750
Address
Knut Den Stores Gata 13D
22221 Lund
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)