Analisis Logam Timbal (Pb) Dan Besi (Fe) Dalam Air Laut Di Pelabuhan Desa Paranggi Kecamatan Ampibabo

Abstract

Determination of concentration of lead (Pb) and iron (Fe) has been conducted in sea water inParanggi village, district of Ampibabo. The method used is spectrophotometry, namely atomic absorptionspectrophotometer (AAS). Sea water sample is taken in the morning with a 3-point sampling, which isat a distance of ± 5 m, 10 m and 15 m respectively. The 3-point sampling is from the port side of theback end of the ship and the port end of the backrest ship at a distance of ± 5 m ahead. Analysis of Pblevel is measured at a wavelength of 217 nm and Fe at a wavelength of 248.3 nm. Result shows thatPb levels at point A is 0.4869 mg/L, at point B is 0.5304, and at point C is 0.4869 while for the Felevels shows that at point A is 0.3073, at point B is 0.2652, and at point C is 0.2863. The range of theconcentration of Pb is between 0.4869 to 0.5304 mg/L. This concentration is higher when comparedwith the NAB Pb, 0.025 mg/L. Furthermore, the range of the concentration of Fe is from 0.2652 to0.3073 mg/L. Similarly to Pb result above, this concentration is higher when compared with the NABFe, 0.01 mg /L.