Newsletter Newsletter 19 New documentation for creating custom calibrations for the Open Colorimeter.
Newsletter Featured Newsletter 18 New instructional videos and user guides for the Open Colorimeter. Link to subscribe to our YouTube channel.
Newsletter Featured Newsletter 16 Testing three water quality tests for the Open Colorimeter. These assays are ammonia, nitrate and nitrite.
Tutorial Nitrate-API colorimetric assay Colorimetric assay for measuring nitrate levels using API test kit. Range: 0-50ppm
Tutorial Ammonia-API colorimetric assay Colorimetric assay for measuring ammonia levels using API test kit. Range: 0-8ppm
Tutorial Nitrite-API colorimetric assay Colorimetric assay for measuring nitrite levels using API test kit. Range: 0-2ppm
Tutorial Open Colorimeter: measuring blue food dye in sports drinks Goal: Use the Open Colorimeter to experimentally calculate the molar extinction coefficient of FD&C Blue #1 Beer’s Law states that absorbance of a sample (Abs) depends on the molar concentration (c), light path length in centimeters (l), and molar extinction coefficient (ε) for the dissolved substance at the
Newsletter Newsletter 12 Open Colorimeter with Beer's Law experiments & measuring food dyes in drinks
Newsletter Newsletter 6 Forum update, 3D printed cuvette holders and data from the environmental gas sensor project
Newsletter Newsletter 5 Updates on the new Open Hardware Colorimeter project including PyBadge firmware
Product Guide New colorimeter open hardware design expands flexibility Our open hardware colorimeter is a popular tool for measurements analytes using colorimetric assays. We initially designed the colorimeter as an educational kit in 2012 with Kickstarter funding.
Tutorial Testing a lead colorimetric assay In this blog post we describe our initial testing of a colorimetric kit for measuring lead in drinking water. In 2015, a Virginia Tech research team [http://flintwaterstudy.org/about-page/about-us/] found that over 40% of the homes in Flint, MI had elevated lead water levels with 25% of homes
