Determination of nitrite in various aqueous samples using magnetic solid phase extraction and image analysis via a mobile phone

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KHOSHMARAM LEILA; KARIMI ALI; SADEGHI FATEMEH

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Journal: Journal of Applied Research in Chemistry Year:2020 | Volume:14 | Issue:2 Page(s): 57-65

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Information Journal Paper

Title

Determination of nitrite in various aqueous samples using magnetic solid phase extraction and image analysis via a mobile phone

Author(s)

KHOSHMARAM LEILA | KARIMI ALI | SADEGHI FATEMEH | Issue Writer Certificate

Keywords

Image analysisQ1

Mobile phoneQ1

Magnetic solid phase extractionQ1

NitriteQ1

Water samplesQ1

Abstract

In this study, an Image analysis method using a homemade colorimeter for determination of trace amount of Nitrite in various Water samples is provided. The proposed method is based on using a smartphone to obtain RGB values of digital images. 4-nitroaniline and α-naphthol were used to convert Nitrite to a colored product. Magnetic solid phase extraction was then used to extract azo dye. In Magnetic solid phase extraction, magnetic graphene was used as adsorbent and acetone as a desorption solvent. After taking the extraction phase digital images using a cell phone and their analyzing using Color Grab software, R values were used to obtain analysis signal related to Nitrite concentration. The experimental parameters affecting the reaction and extraction efficiency were investigated. Under optimum conditions, the detection limit and the quantitative limit of the method were obtained 1. 2 and 4 μ g l-1, respectively. The calibration graph was linear in the range of 10-300 μ g l-1 with a correlation coefficient of 0. 993. The relative standard deviations for 100 and 30 μ g l-1 were 2. 2 and 3. 9, respectively. The proposed method was successfully applied for the determination of Nitrite in various Water samples.

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APA: Copy

KHOSHMARAM, LEILA, KARIMI, ALI, & SADEGHI, FATEMEH. (2020). Determination of nitrite in various aqueous samples using magnetic solid phase extraction and image analysis via a mobile phone. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), 14(2 ), 57-65. SID. https://sid.ir/paper/411875/en

Vancouver: Copy

KHOSHMARAM LEILA, KARIMI ALI, SADEGHI FATEMEH. Determination of nitrite in various aqueous samples using magnetic solid phase extraction and image analysis via a mobile phone. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)[Internet]. 2020;14(2 ):57-65. Available from: https://sid.ir/paper/411875/en

IEEE: Copy

LEILA KHOSHMARAM, ALI KARIMI, and FATEMEH SADEGHI, “Determination of nitrite in various aqueous samples using magnetic solid phase extraction and image analysis via a mobile phone,” JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), vol. 14, no. 2 , pp. 57–65, 2020, [Online]. Available: https://sid.ir/paper/411875/en

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