| dc.description.abstract | Analysis of Nitrate, Nitrite and Sulfate Levels in Clean Water using the
UV-Visible Spectrophotometry method at UPT.Laboratory Kesehatan of North
Sumatra Province. Examination of Nitrate, Nitrite and Sulfate Levels has been
carried out using the UV.Visible spectrophotometry method at a wavelength of
220 nm for Nitrate, 543 nm for Nitrite and 420 nm for Sulfate. In the Nitrate test
using 3 samples of clean water originating from different sources. Analysis Results
obtained Nitrate Levels in Clean Water still meet the Quality Standard limit
of 10 mg/L. in the three test samples Nitrate 0.493 mg/L;0.092 mg/L;1.57455
mg/L. in this test using 9 samples of clean water from different sources. The results
of analysis of Nitrite levels in Clean Water still meet the Quality Standard
Limits, namely 1 mg/L in the nine samples, namely 0.8680 mg/L; 0.0032 mg/L;
0.0019 mg/L;0.0018 mg/L; 0.0032 mg/L;0.0040 mg/L;0.0025 mg/L;0.0019
mg/L;0.0020 mg/L. In this test, 4 samples of clean water were used from different
sources. The analysis results obtained showed that the sulfate content in clean
water still met the quality standard limit, namely 400 mg/L in the four test samples,
namely 35.5490 mg/L; 7.8062 mg/L. L; 24.9799mg/L; 15.9953mg/L. | en_US |
