DNA Quantification with the UV Open Colorimeter
In this post we share some information on using the UV Open Colorimeter with a 255nm UV LED board for nucleic acid measurements.
Tutorials
Tutorials are project-based posts and step-by-step guides on ways to make or use open source tools in science investigations.
Protein Quantification with the UV Open Colorimeter
In this tutorial we are using the new UV Open Colorimeter for A280 protein quantification measurements using a UV sensor and 270-280 nm UV LED
Background
Protein concentration is an extremely useful and routine measurement in science with a wide variety of applications in biochemistry, molecular biology, environmental and biomedical
Measuring proteins with the Bradford assay
Methods for measuring protein concentration using the Open Colorimeter and 595nm LED.
Electrochemistry: Current dependence on scan rate
In this tutorial we use the Rodeostat potentiostat and a screen printed electrode to demonstrate current dependence on scan rate. We know that for freely-diffusible analytes like ascorbate, the anodic peak current depends linearly on the square root of the scan rate. This is described by the Randles-Sevcik equation. The
Nitrate-API colorimetric assay
Colorimetric assay for measuring nitrate levels using API test kit. Range: 0-50ppm
Ammonia-API colorimetric assay
Colorimetric assay for measuring ammonia levels using API test kit. Range: 0-8ppm
Nitrite-API colorimetric assay
Colorimetric assay for measuring nitrite levels using API test kit. Range: 0-2ppm