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- W4306769503 endingPage "7916" @default.
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- W4306769503 abstract "A novel portable low-cost Arduino-controlled photo- and fluorimeter for on-site measurements has been developed. The device uses LEDs as a light source and a phototransistor as a light sensor. The circuit is based on the discharge of a capacitor with the photocurrent from the phototransistor. Validation experiments for absorbance measurements were performed by measuring protein concentration using the Bradford method and measuring phosphate ions in water using a commercial test kit. The emission light of the excited fluorescent dyes rhodamine 6G and calcofluor white was measured to validate the usability of the device as a fluorescence photometer. In all validation experiments, similar correlation coefficients and limit of detection could be achieved with the portable photo- and fluorimeter and a laboratory spectrometer and fluorimeter. Real sample analysis was performed, measuring phosphate concentration in freshwater and concentration of green fluorescent protein, extracted from Escherichia coli." @default.
- W4306769503 created "2022-10-19" @default.
- W4306769503 creator A5036039184 @default.
- W4306769503 creator A5066967924 @default.
- W4306769503 date "2022-10-18" @default.
- W4306769503 modified "2023-09-25" @default.
- W4306769503 title "Portuino—A Novel Portable Low-Cost Arduino-Based Photo- and Fluorimeter" @default.
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- W4306769503 doi "https://doi.org/10.3390/s22207916" @default.
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