Open AccessSmart Ammonia Analyzer for Detecting Nitrogen-Ammonium Content in Fertilizer
Author(s) -
Hermin Sulistyarti,
Boyfannie Ifan Putra,
Sutrisno Sutrisno,
Erwin Sulistyo
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1665/1/012029
Subject(s) - ammonia , nitrogen , indophenol , reagent , spectrum analyzer , fertilizer , chemistry , ammonium , computer science , chromatography , biochemistry , organic chemistry , telecommunications
Nitrogen is an essential nutrient required by majority of plants to enhance metabolic processes for growing. Insufficient supply of nitrogen leads to severe plant disorders in flowering and fruiting; however, there are many false fertilizers available in markets. This project is focused on developing a smart method as a means for quality detection of nitrogen fertilizer. The smart ammonia analyzer was constructed on a normal smartphone which filled with Qpython3 software functions as an information processing application to analyze the level of nitrogen-ammonium and Color Grab application to process the RGB image of coloured product reaction of nitrogen-ammonium to be measured. The image of blue indophenol as the coloured product of the nitrogen was developed on a paper containing phenate reagent by releasing nitrogen ammonia from sample. The measurement process using the constructed “Smart Ammonia Analyzer’ involving taking image by smartphone camera, measuring image intensity on position with RED readings, and analyzing process to change the RED-value to concentration of nitrogen-ammonium. The chemicals used for colour formation of blue indophenol were 0.2 M NaOCl, 0.5 M HCl, 0.003 M MnSO4 M, and 2 M phenate with 0.1 M of NaOH for releasing agent of nitrogen fertilizer as ammonia. The developed smart ammonia analyzer resulted linear relation between the absorbance of blue indophenol image to concentration of nitrogen ammonia (y = 0.0181x + 0.2834, R 2 = 0.9726) and has been successfully applied to nitrogen fertilizer. Development of smart ammonia analyzer has been achieved to provide an easy, inexpensive, and fast device for detecting quality of nitrogen fertilizer with satisfactory results.