The Use of Complexing Agent 1-5Diphenylthiocarbazone in the Analysis of Heavy Metals Cu, Pb, Zn, Mn and Ni in Seawater Samples: Application of Solvent Extraction Learning in Analysis Separation Subject

DOI

10.2991/978-94-6463-130-2_7How to use a DOI?

Keywords

dithizone; heavy metals analysis; seawater

Abstract

This research investigates the use of 1-5diphenylthyocarbazone in the analysis of heavy metals Cu, Pb, Zn, Mn, and Ni in seawater samples collected from Alas Strait Waters. The aim of this research is to find out the optimum conditions in analyzing heavy metals, such as optimum pH, extraction time, recovery percentage, and detection limit in the analysis method analyzing those heavy metals. This research is conducted in two steps, firstly, solvent extraction by using complexing agent dithizone in chloroform and secondly, measurement of metals by using an Atomic Absorption Spectrophotometer (AAS). From the results of the method investigation, it is found that the optimum conditions are as follows: (a) pH 8 for Pb, Mn, Ni, and Zn, at the meanwhile pH 4 for Cu; (b) time for extraction 5 min, (c) percentage of recovery 101 for Cu, 105 for Mn, 111 for Ni, 91 for Pb and 104 for Zn and (d) detection limits 0.0027, 0.0023, 0.0030, 0.0070 and 0.0006 ppm for Cu, Mn, Ni, Pb, and Zn respectively. Results of six samples at the optimum conditions show that the concentration of Cu, Mn, Ni, Pb, and Zn are (0.0253 ± 0.0038), (0.0018 ± 0.0002), (0.0018 ± 0.0002), (0.0283 ± 0.0160) and (0.0889 ± 0.0138) ppm respectively. Conclusions of this research are: (1) from the value of % recovery and detection limit, dithizone can be used properly as a complexion agent for heavy metals analysis in seawater samples, (2) results of those heavy metals analysis show that their concentrations are high enough although they are lower than allowed concentration.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Muti’ah
AU  - Jackson Siahaan
AU  - I. Nyoman Loka
PY  - 2023
DA  - 2023/04/14
TI  - The Use of Complexing Agent 1-5Diphenylthiocarbazone in the Analysis of Heavy Metals Cu, Pb, Zn, Mn and Ni in Seawater Samples: Application of Solvent Extraction Learning in Analysis Separation Subject
BT  - Proceedings of the 1st Nusa Tenggara International Conference on Chemistry (NITRIC 2022)
PB  - Atlantis Press
SP  - 51
EP  - 59
SN  - 2590-3195
UR  - https://doi.org/10.2991/978-94-6463-130-2_7
DO  - 10.2991/978-94-6463-130-2_7
ID  - 2023
ER  -