Use of universal 3D-Printed smartphone spectrophotometer to develop a time-based analysis for hypochlorite
- Vidal, Ezequiel Martin
- Lorenzetti, Anabela Silvana
- Garcia, Carlos D.
- Domini, Claudia Elizabeth
DOIAbstract
A fully-functional smartphone-based spectrophotometer was designed and built using 3D printing. The major advantage of this approach is its capacity to be interfaced with a variety of smartphones, allowing the use of the smartphone's camera and display, and regardless of the relative position of the camera. The analytical performance of the device was analyzed using a model dye (crystal violet), leading to a proportional response for concentrations in the 0.06–15.0 mg L−1 range, with a variability of 1.0% (intra-day) and 2.6% (inter-day). To demonstrate the functionality of the device, the degradation process of the dye by sodium hypochlorite was studied. The results obtained were applied to develop a paper-based test for NaClO in sanitatio...