VALIDATION OF THE METHODS OF Hg DETERMINATION ON WASTE WATER TREATMENT PLANT SAMPLES USING COLD VAPOUR-ATOMIC ABSORPTION SPECTROPHOTOMETER (CV-AAS)TECHNIQUES

  • Rika anggraini Kimia FMIPA
  • Rita Hairani Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman
  • Aman Sentosa Panggabean Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

Abstract

The research about validation of the method of Hg determination on the sample from wastewater treatment plant (WWTP) PT. Badak NGL Bontang, Kalimantan Timur using cold vapour-atomic absorption spectrophotometer (CV-AAS) techniques has been conducted. To obtain a valid measurement result, determinations of the important several parameters that influence the method validation are used. The results of research showed that 20% SnCl2 solution could be used as a reducing agent. The analytic performance of measurement obtain is good, showed with the linearity (r) value ≥ 0.995, LOD was 0.2530 ppb, LOQ was 0.8432 ppb, MDL was 0.6427 ppb and repeatability and reproducibility are shown as % RSD < 2/3 CV Horwitz values. The accuracy of this method is very good with a percentage of recovery value of 114.88%. Based on the results of this research, CV-AAS method can be used in the determination of Hg in WWTP samples with the valid results.

Keyword
Hg, validation methode, CV-AAS

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Published
2018-11-29
How to Cite
ANGGRAINI, Rika; HAIRANI, Rita; PANGGABEAN, Aman Sentosa. VALIDATION OF THE METHODS OF Hg DETERMINATION ON WASTE WATER TREATMENT PLANT SAMPLES USING COLD VAPOUR-ATOMIC ABSORPTION SPECTROPHOTOMETER (CV-AAS)TECHNIQUES. JURNAL KIMIA MULAWARMAN, [S.l.], v. 16, n. 1, p. 10-15, nov. 2018. ISSN 2476-9258. Available at: <http://jurnal.kimia.fmipa.unmul.ac.id/index.php/JKM/article/view/667>. Date accessed: 21 feb. 2019. doi: https://doi.org/10.30872/jkm.v16i1.667.
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