Naslov
Digital technology in quantitative colorimetric analysis

Autori
Šafranko, Silvija ; Živković, Pavo ; Stanković, Anamarija ; Sečenji, Aleksandar

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
International conference 17th Ružička days "Today science-Tomorrow industry" ; Book of abstract / Tomas, Srećko ; Ačkar, Đurđica - Osijek : Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku ; Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2018, 21-21

ISBN
978-953-7005-57-3

Skup
17. Ružičkini dani "Danas znanost - sutra industrija"

Mjesto i datum
Vukovar, Hrvatska, 19.09.2018. - 21.09.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
PC application ; colorimetry ; RGB ; digital camera

Sažetak
Increasing levels of pollution due to industrial growth is considered one of the biggest health and environmental issues. With the recent industrial growth and technological development, experts expect growth to continue even more strongly in the next several years. For that reason, it is necessary to develop cheap, fast and reliable methods for determination pollutants in water, air and soil. Colorimetric methods meet the criteria [1]. Development of digital technology could provide adequate solution to the improvement of colorimetric methods. The concentration of analyte can be determined by measuring the intensity of colour. For that purpose, PC application was developed. It was based on RGB additive model of colours which is usually used for digital images processing. Combination of RGB values gives a wide spectrum of different colours which can be used for colorimetric determination [2]. Application was developed in Visual Basic [3] programming language. Combination of the application and standard colorimetric methods gives effective solution for measuring the concentrations of several chemical analytes. The pictures of the samples were taken with digital camera. Special environment and algorithm was developed to minimize influence of external factors. The calibration curve was constructed from the measurement values showing high linearity. The main aim was to develop simple, cheap, quick and in the end effective application for concentration determination of some chemical analytes. The application was tested on standard colorimetric method for determination of phosphates, and also on aqueous solutions of potassium permanganate. In both cases, high linearity was obtained from which was possible to determine the concentration very precisely.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija, Interdisciplinarne tehničke znanosti, Interdisciplinarne biotehničke znanosti

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