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PENENTUAN KADAR BESI (Fe) AIR SUMUR DI KECAMATAN PRINGGABAYA MENGGUNAKAN METODE SPEKTROFOTOMETRI SERAPAN ATOM (SSA)

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ABSTRAK
Logam besi (Fe) pada air minum berbahaya bagi kesehatan dapat
menyebabkan badan melemah, kerusakan organ, dan keracunan. Beberapa air
sumur di Kecamatan Pringgabaya terindikasi mengandung logam besi (Fe) yang
berlebih ditandai dengan perubahan warna, bau dan rasa. Adapun tujuan
dilakukan penelitian ini adalah untuk menentukan kandungan logam besi (Fe) air
sumur di Kecamatan Pringgabaya menggunakan Spektrofotometri Serapan Atom
(SSA). Pengambilan sampel air sumur dilakukan di tiga Desa yaitu Desa
Kampung Pelita, Pohgading Timur dan Dasan Baru menggunakan teknik
purposive sampling. Sampel air sumur dari ketiga lokasi dianalisis secara
kualitatif dan kuantatif. Hasil analisis kualitatif menunjukkan sampel air sumur di
Desa Kampung Pelita berwarna putih kecokelatan, tidak berbau, dan berasa asam,
pH 7,56 dengan suhu 30oC. Sampel di Desa Pohgading Timur berwarna cokelat
kekuningan, bau kotoran hewan, berasa asam, dengan pH 7,71 dengan suhu 28oC.
Sampel di Dasan Baru berwarna kehitaman,bau sampah busuk, berasa asam, pH
6,35 dan suhu 30oC. Hasil uji kualitatif sampel positif mengandung logam besi
dibuktikan dengan terbentuk warna merah darah setelah direaksikan dengan
reagen kalium tiosianat (KSCN) 0,2 N. Sementara itu hasil analisis kuantitatif
menggunakan spektrofotometri serapan atom (SSA) diperoleh kadar besi sampel
air sumur di Desa Kampung Pelita sebesar 9,11 mg/L, Pohgading Timur 7,84
mg/L dan Dasan Baru 6,27 mg/L. Berdasarkan hasil yang didapatkan, kadar Fe
pada sampel air sumur di tiga Desa di Kecamatan Pringgabaya melebihi standar
yang ditetapkan oleh Keputusan Menteri RI No 492 tahun 2010 yaitu 0,3 mg/L.
Kata Kunci : Air Minum, logam besi (Fe), uji kualitatif dan kuantitatif,
spektrofotometri serapan atom.viii
ABSTRACT
Ferrous metal (Fe) in drinking water is harmful to health and can cause
weakening of the body, organ damage, and poisoning. Several well waters in
Pringgabaya District are indicated to contain excess iron (Fe) which is
characterized by changes in color, odor and taste. The purpose of this study was to
determine the iron metal (Fe) content of well water in Pringgabaya District using
Atomic Absorption Spectrophotometry (AAS). Sampling of well water was
carried out in three villages, namely Kampung Pelita, East Pohgading and Dasan
Baru villages using purposive sampling technique. Well water samples from the
three locations were analyzed qualitatively and quantitatively. The results of the
qualitative analysis showed that the well water sample in Kampung Pelita Village
was brownish white, odorless, and tasted sour, pH 7.56 with a temperature of
30oC. Sample in East Pohgading Village was yellowish brown, smelled of animal
waste, tasted sour, with a pH of 7, 71 with a temperature of 28oC. At Dasan Baru
it is blackish in color, smells of rotten garbage, tastes sour, pH 6.35 and a
temperature of 30oC. The results of the qualitative test of positive samples
containing iron were evidenced by the formation of a blood red color after
reacting with 0,2 N potassium thiocyanate (KSCN) reagent. Meanwhile, the
results of quantitative analysis using atomic absorption spectrophotometry (AAS)
obtained iron levels in Kampung Pelita Village of 9,11 mg/L , East Pohgading
7,84 mg/L and Dasan Baru 6,27 mg/L. Based on the results obtained, the well
water sample in Pringgabaya District exceeds the standard set by the Decree of the
Minister of the Republic of Indonesia No. 492 of 2010 which is 0.3 mg/L.
Keywords: Drinking water, ferrous metal (Fe), qualitative and quantitative tests,
atomic absorption spectrophotometry.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

180

Penerbit

Mataram : Farmasi FK Unram., 2022

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

DTS 610 Bai p F.2022

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

SKRIPSI

Info Detail Spesifik

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Pernyataan Tanggungjawab

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Versi lain/terkait

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