Statistical evaluation of conventional and portable instrumentations for Cr(VI) analysis on chemistry laboratory waste water

Suherman Suherman, Ghilma Milawonso, Kinichi Morita, Hitoshi Mizuguchi, Yuji Oki

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

The development of portable instrumentation for heavy metals analysis was increased rapidly. However, the quality of data from portable methods has so far been questioned when compared to conventional instrumentation. In this research, a comparative study of conventional and portable instrumentations for Cr(VI) analysis on liquid waste water of Chemistry Laboratory at Universitas Gadjah Mada (UGM) was conducted. This research started with validation and statistical evaluation of instrumentation methods which are UV-Visible spectrophotometer, portable spectrophotometer (PiCOEXPLORER) and Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-AES). The validation methods consist of determination of linearity, sensitivity, limit of detection and limit of quantification. The results showed that the validation methods of ICPAES were better than PiCOEXPLORER and UV-Vis spectrophotometer. Based on t-test, it was obtained that the result of Cr(VI) analyses with the comparison of UV-Vis and PiCOEXPLORER, ICP-AES and PiCOEXPLORER, and UV-Vis and ICP-AES; there were no significant difference (tcount< ttable). The ANOVA test (F test) results showed that the Fcount value is less than Ftable so that the results of Cr(VI) analysis in the standard solution and liquid waste samples measured by three instrumentations. Thus, it was concluded that portable instrumentations was good and gives the same quality as conventional instrumentations (UV-Vis and ICP AES).

本文言語英語
ホスト出版物のタイトルSymposium of Materials Science and Chemistry II
編集者Tutik Dwi Wahyuningsih, Roto Roto, Dwi Siswanta, Rohana Adnan, Laurent Commeiras, Kuwat Triyana, Kuwat Triyana, Indriana Kartini, Julius Motuzas
出版社Trans Tech Publications Ltd
ページ406-411
ページ数6
ISBN(印刷版)9783035716139
出版ステータス出版済み - 2020
イベント5th International Conference on Science and Technology, ICST 2019 - Yogyakarta, インドネシア
継続期間: 7 30 20197 31 2019

出版物シリーズ

名前Key Engineering Materials
840 KEM
ISSN(印刷版)1013-9826
ISSN(電子版)1662-9795

会議

会議5th International Conference on Science and Technology, ICST 2019
国/地域インドネシア
CityYogyakarta
Period7/30/197/31/19

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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