This paper describes a very simple and rapid method for colorimetric spot-test determination
of Fe (III) utilizing a hand-scanner. Artificial neural networks with back propagation algorithm …

A case is presented of a fatal drug interaction caused by ingestion of oxycodone
(Oxycontin®) and clonazepam (Klonapin®). Oxycodone is an opium alkaloid used in long …

A very simple and low cost reflectometer, for colorimetric diffuse reflectance measurements
is described. The proposed instrument uses a light dependent resistor (LDR), as a sensor …

Diffuse reflectance spectroscopy (DRS) can be used as a rapid and sensitive method for the
quantitative determination of low amounts of aluminum. In this analytical technique, the …

This article describes a simple, inexpensive, and environmentally friendly method for the
monitoring of glyphosate using diffuse reflectance spectroscopy. The proposed method is …

This paper describes an analytical reflectometric method that has an objective not only the
industrial quality control but also to detect possible falsifications and/or adulterations of …

In this report an analytical method to determine furosemide by using diffuse reflectance
spectroscopy is presented. This study shows that this technique can give quantitative results …

This paper describes a simple, portable and environmentally friendly procedure for the
determination of nitrite by combined spot test/diffuse reflectance spectroscopy on filter …

Diffuse reflectance spectrometry is shown to be useful for the quantitative determination of
small amounts of pollutants. The relation between sample concentration and reflectance is …

A spectrophotometric method for the determination of dipyrone in pharmaceutical
preparations is proposed. This method is based on selective oxidation of dipyrone, in the …