Pemeriksaan Kadar Nitrat-Nitrit di dalam Air Minum yang Berasal dari Kecamatan Parlilitan Kab. Humbang Hasundutan dengan Metode Spektrofotometri UV/VIS
| Main Author: | Hasugian, Dwi Riismei M. |
|---|---|
| Other Authors: | Ginting, Nahitma |
| Format: | Bachelors application/pdf |
| Bahasa: | ind |
| Terbitan: |
, 2018
|
| Subjects: | |
| Online Access: |
http://repositori.usu.ac.id/handle/123456789/1297 |
Daftar Isi:
- 131501043
- Nitrate and nitrite concentration in drinking water must not exceed the maximum level permitted by regulation. drinking water consumed by villagers is obtained from some water springs, where the nitrate and nitrite levels are never or rarely analysed. Nitrate and nitrite levels in wells are markedly influenced by environmental conditions. Based on previous research results (Silalahi, 2007) examining nitrate and nitrite in wells in the berastagi conclusion nitrite levels are relatively low. Nitrate levels above the maximum allowable level, especially wells from the area of horticulture. The purpose of this research is to determine nitrate and nitrite contents of water springs in subdistrict Parlilitan district Humbang Hasundutan. Determination of nitrites level was done visible spectrophotometry using color reagent N-(1-naphthyl) ethylenediamine dihydrochloride at maximum wavelength of 540 nm. Determination of nitrates level was done by reduction nitrates become nitrites by using Zn powder in hydrochloric acid solutions. Samples collected from four locations that is near the village, mountain water (far away village), near the rice fields, and far away the rice fields. The quantitative analysis of nitrate and nitrite was performed by uv/vis spectrophotometric method. The Research results were levels nitrite and nitrate in water’s far away the rice fields are (0.1458 ± 0.0038) μg/ml dan (0.1502 ± 0.0023) μg/ml, near the rice fields are (0.1985± 0.0086) μg/ml dan (0.2508± 0.0036), near the village are (0.1482± 0,0028) μg/ml dan (0.1741± 0.0048) μg/ml, and mountain water are (0.1718± 0.0038) μg/ml dan (0.1841± 0.0033) μg/ml Based on the research results, the level of nitrite range from 0.1458 - 0.1985 ml/l and The level of nitrate range from 0.1502 – 0.2508 ml/l. Where the level of nitrite and nitrate do not exceed the limits set forth in Minister of Health Regulation No. 492 Tahun 2010.
- Kadar nitrat dan nitrit di dalam air minum tidak boleh melebihi kadar maksimum yang diperbolehkan. Air minum yang dikonsumsi masyarakat pedesaaan berasal dari beberapa sumber mata air. Kadar nitrat dan nitrit air minum sangat dipengaruhi oleh lingkungan. Berdasarkan hasil penelitian sebelumnya (Silalahi, 2007) memeriksa kadar nitrat dan nitrit pada air sumur di daerah Berastagi menyimpulkan bahwa kadar nitrit relatif rendah. Kadar nitrat diatas kadar maksimum yang diperbolehkan, terutama air sumur di daerah hortikultura. Tujuan penelitian ini adalah untuk mengetahui kadar nitrat dan nitrit dalam sampel air minum di kecamatan Parlilitan, kabupaten Humbang Hasundutan. Penetapan kadar nitrit dilakukan secara spektrofotometri sinar tampak dengan menggunakan pereaksi warna N-(1-naftil) etilendiamin dihidroklorida pada panjang gelombang maksimum 540 nm. Penetapan kadar nitrat dilakukan dengan mereduksi nitrat terlebih dahulu menjadi nitrit dengan serbuk Zn dalam larutan asam klorida. Sampel diambil dari 4 lokasi, yaitu dekat perkampungan, jauh perkampungan (pegunungan), dekat persawahan, dan jauh persawahan. Penetapan kadar nitrat dan nitrit dilakukan dengan metode spektrofotometri UV/Vis. Hasil penelitian menunjukkan kadar nitrit dan nitrat pada air jauh persawahan (0,1458 ± 0,0038) μg/ml dan (0,1502 ± 0,0023) μg/ml, air dekat persawahan (0,1985± 0,0086) μg/ml dan (0,2508± 0,0036), air dekat perkampungan (0,1482± 0,0028) μg/ml dan (0,1741± 0,0048) μg/ml, dan air pegunungan (0,1718± 0,0038) μg/ml dan (0,1841± 0,0033) μg/ml. Berdasarkan hasil penelitian disimpulkan bahwa, kadar nitrit berkisar antara 0,1458 - 0,1985 ml/l dan kadar nitrat berkisar antara 0,1502 - 0,2508 ml/l. Dimana kadar nitrit dan nitrat tidak melebihi batas yang tercantum dalam Peraturan Menteri Kesehatan Nomor 492 Tahun 2010.