Determination of serum protein content using cell phone image analysis

Abstract

This paper presents a simple, fast and inexpensive way to measure serum protein content (albumin and total proteins) by integration of color images acquired with a cell phone camera and multiple linear regression (MLR).

Principal Component Analysis (PCA) as a Statistical Tool for Identifying Key Indicators of Nuclear Power Plant Cable Insulation Degradation

“…Multiple Linear Regression Model (MLR) relates a dependent variable (y) to a set of quantitatively independent variables (xi). It is a direct extension of a polynomial regression model in one independent variable (14).…”

Colorimetric Determination of Ascorbic Acid Based on Its Interfering Effect in the Enzymatic Analysis of Glucose: An Approach Using Smartphone Image Analysis

“…To demonstrate these features, several papers involving colorimetric detection have been published such as for the quantification of synthetic dyes; 1 monitoring of organic reactions; 1,2 evaluation of food quality; 3 characterization of drug authenticity; 4 and determination of biochemical parameters. [5][6][7][8][9] Among several devices applied in image-based analytical methodologies, the use of smartphones has emerged as a notable tool due to the massive amount of users all over the world, easy image acquisition and high accessibility for data transmission. [4][5][6][7][8] Ascorbic acid (AA) is a natural water-soluble vitamin widespread in nature that plays a crucial role in biological processes and metabolism, 10 AA is a common constituent of the human diet and commercialized as a supplement (vitamin C) in high levels, since its ingestion is strongly suggested for prevention and treatment of several pathologies.…”

“…[5][6][7][8][9] Among several devices applied in image-based analytical methodologies, the use of smartphones has emerged as a notable tool due to the massive amount of users all over the world, easy image acquisition and high accessibility for data transmission. [4][5][6][7][8] Ascorbic acid (AA) is a natural water-soluble vitamin widespread in nature that plays a crucial role in biological processes and metabolism, 10 AA is a common constituent of the human diet and commercialized as a supplement (vitamin C) in high levels, since its ingestion is strongly suggested for prevention and treatment of several pathologies. Several approaches have been reported in an attempt to determine AA levels in different matrices, such as the high-performance liquid chromatography (HPLC) and ultra performance liquid chromatography (UPLC) methods, electrochemical measurements, as well as molecular spectroscopy such as UV-Vis and fluorescence.…”

Desenvolvimento de procedimentos analíticos rápidos para o controle de qualidade de biodiesel

“…Spot tests têm sido bastante utilizados para análises qualitativas e quantitativas de compostos inorgânicos [36] e orgânicos [37], para análise de fármacos [38], de peixes [39], de bebidas [40], de águas [41]. Essa estratégia também tem sido utilizada na área da saúde [42,43] e para controle de atividade enzimática [44]. Spot tests geralmente exploram reações colorimétricas e, para fins quantitativos, as medidas têm sido usualmente realizadas por reflectância [38].…”