The steady advances in technology employed in smartphones, coupled with the high
availability and the ease access to these devices, increased the interest in applying it to …

This review systematizes for the first time the here called “Chemometrics‐assisted color
histogram‐based analytical systems” under the acronym CACHAS. A comprehensive …

In this paper, a colorimetric method for the detection of milk adulterants using smartphone
image analysis is reported. This is based on the reactions to detect hydrogen peroxide …

Abstract Analysis of digital images by smartphone was used for copper quantification in
sugarcane spirit (cachaça) samples through the formation of blue complex between copper …

A digital image-based (DIB) method using colorimetry via a portable device is proposed for
salt determination in crude oil. Chloride was extracted to an aqueous phase, followed by …

In Forensic Documentoscopy, it is frequently questioned if a particular document was written
with one or more pens. Different methods have been developed to distinguish pen inks from …

The quantification of sulfur, nitrogen and ash content in tannins of mimosa (Acacia mearnsii)
and quebracho (Schinopsis sp.) is of fundamental importance for its industrial use. Thus, an …

This paper aimed at the use of a chemometrics-assisted color histogram-based analytical
system (CACHAS) to provide a fast and reliable analytical tool for the qualitative and …

This study proposes a new and simple method for Cr speciation and Cr (VI) determination in
leather samples using digital images. The experiments were performed using a mobile …

A new method to identify the authenticity of Brazilian banknotes (R $) is proposed using
digital image analysis by a smartphone application, Photometrix®, associated with …