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Issue 46, 2017, Issue in Progress
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Detection of domestic detergent residues on porcelain tableware using laser induced breakdown spectroscopy

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Abstract

Domestic detergents are widely used and the detection of detergent residues on tableware is closely related to people's health. As is known to all, it is difficult to sample and measure the residual detergent on tableware. The purpose of this paper is to explore a rapid in situ detergent residues detection method. We have using laser-induced breakdown spectroscopy (LIBS) measured the detergent on porcelain plate. Based on our previous research, we further studied the spectra of detergent in argon atmosphere, and compared them with that in air. We found the spectral characteristics of the cyanogroup (CN) were related to the air around the measuring point. It was indicated that CN could not as previously speculated be used as the LIBS detection feature of detergent. The improvement of signal-to-noise ratio (SNR) in argon environment was proved and we made a study of semi quantitative measurement by the peak height of 330.30 nm in argon atmosphere. An experiment measuring the detergent on tableware after washed was taken. It illustrated that the LIBS technology has promising potential applications for tableware cleaning process or food production process as a means of on-line detection.

Graphical abstract: Detection of domestic detergent residues on porcelain tableware using laser induced breakdown spectroscopy

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Publication details

The article was received on 17 Apr 2017, accepted on 23 May 2017 and first published on 31 May 2017


Article type: Paper
DOI: 10.1039/C7RA04304J
Citation: RSC Adv., 2017,7, 28689-28695
  • Open access: Creative Commons BY-NC license
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    Detection of domestic detergent residues on porcelain tableware using laser induced breakdown spectroscopy

    X. Zhao, D. Dong, Y. Li and C. Zhao, RSC Adv., 2017, 7, 28689
    DOI: 10.1039/C7RA04304J

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