Perbedaan Hasil Pemeriksaan Nitrat (No₃ˉ) Dengan Penambahan Edta Dan Tanpa Penambahan Edta Secara Spektrofotometri Uv-Vis Metode Brusin Sulfat

Suprayogi, M. Rio (2019) Perbedaan Hasil Pemeriksaan Nitrat (No₃ˉ) Dengan Penambahan Edta Dan Tanpa Penambahan Edta Secara Spektrofotometri Uv-Vis Metode Brusin Sulfat. Undergraduate thesis, Universitas Katolik Musi Charitas.

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Abstract

Background: Nitrate is a part of the nitrogen cycle. Ion nitrate forms a stable form by combining nitrogen and oxygen. The increase of nitrate level in the environment can be made by the inclusion of domestic and agricultural waste which contains ion of nitrates. The maximum level of nitrate level in water is regulated as 10 mg/L. The nitrate analysis test can be done using the Brusin sulfate method by adding Na2EDTA and without adding Na2EDTA. This present study aims to determine the different sensitivity of nitrate analysis by adding Na2EDTA and without adding Na2EDTA using by UV-Vis spectrophotometers. Method: This research uses the method of nitrate analysis by comparing the nitrate level treated by adding and no adding Na2EDTA. The detailed procedure refers to the Indonesian national standard 06-2480-1991. The research belongs to the type of True experiment research type with the design of study using a control group (Posttest Only Control Group Design) Result: The result showed that the sample treated by adding no Na2EDTA obtained consecutive results of mean 2,3628 ppm and the results of nitrate analysis by adding Na2EDTA obtained consecutive value means of 6,9178 ppm. Conclusion: Verification of data on the research obtained the value of Linearity, LOD and LOQ, % Recovery, and % RSD entered within the limits of the infidelity. From the research, the sensitivity of nitrate analysis is differentiated by adding and no adding Na2EDTA on the well water samples.

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