کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1263044 | 1496695 | 2012 | 7 صفحه PDF | دانلود رایگان |

Continuous flow analysis for soluble Fe(II) species in seawater was performed with a colorimetric method using ferene as a spectrophotometric reagent. The method is based on the measurement of absorbance of the [FeII(fer)3]4 --complex at 594 nm. No preconcentration-steps are required. Samples prepared in the laboratory in line with external calibration experiments have been successfully analyzed in the nanomolar range (R2 = 0.959). A detection limit of 20 nM was obtained. Furthermore, investigations were performed in situ with a wet chemical analyzer in the water column of the central Baltic Sea. Finally the results were consistent with measurements made by an independent laboratory based method (ICP-OES).
► Ferene was used for the in situ determination of Fe(II).
► Calibration experiments have been carried out in the nanomolar range (R2 = 0.959).
► A detection limit of 20 nM was obtained.
► Investigations were performed in situ with a wet chemical analyzer.
► Results were consistent with measurements made by ICP-OES.
Journal: Marine Chemistry - Volumes 130–131, 20 February 2012, Pages 21–27