Smartphone-Enabled Quantification of Potassium in Blood Plasma.

ABSTRACT: This work describes a new method for determining K+ concentration, [K+], in blood plasma using a smartphone with a custom-built optical attachment. The method is based on turbidity measurement of blood plasma solutions in the presence of sodium tetraphenylborate, a known potassium precipitating reagent. The images obtained by a smartphone camera are analyzed by a custom image-processing algorithm which enables the transformation of the image data from RGB to HSV color space and calculation of a mean value of the light-intensity component (V). Analysis of images of blood plasma containing different amounts of K+ reveal a correlation between V and [K+]. The accuracy of the method was confirmed by comparing the results with the results obtained using commercial ion-selective electrode device

SUBMITTER: Hidayat AS 

PROVIDER: S-EPMC8309773 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature