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<p>The escalating prevalence of unhealthy dietary patterns has spurred the demand for micronutrient supplements, such as children’s Ca–Fe–Zn oral liquid. Although most trace elements exhibit analogous content and composition, variances in raw materials and manufacturing methodologies can influence product quality and bioavailability in children. Thus, two group children’s oral liquids were collected, each imbued with similar elemental compositions and contents. The sample preparation employed DFP (dropwise to filter paper) and SFP (soaking the filter paper). A comparative assessment of feature selection capabilities between XGBoost and Lasso was conducted. The features delineated by Lasso were deemed superior and thus selected as inputs for SVM, RF, and LightGBM models. Of these, the Lasso-SVM configuration exhibited the most potent analytical prowess. The <i>R</i><sub><i>C</i></sub><sup><i>2</i></sup> values of 0.9612 and 0.9567 for DFP1 and DFP2, respectively, and 0.9584 and 0.9748 for SFP1 and SFP2, respectively. Correspondingly, the <i>R</i><sub><i>P</i></sub><sup><i>2</i></sup> of 0.9496, 0.9354, 0.9389, and 0.9244, respectively. This work revealed that DFP is more conducive to real-time, on-site inspection of oral liquids. And investigation corroborates the viability of harnessing Laser-Induced Breakdown Spectroscopy (LIBS) in tandem with judicious data processing techniques to discern oral liquids with akin elemental contents. Through meticulous analysis of the LIBS spectra, the integrity of brand value for oral liquids, even those with minute compositional discrepancies, can be maintained.</p>

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Differentiation analysis of similar components in children’s Ca–Fe–Zn oral liquid by LIBS

  • 期刊论文

  • 发表日期：

    2025年6月12日

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  • Weiping Xie,
  • Gangrong Fu,
  • Jiang Xu,
  • Min Zeng,
  • Ping Yang,
  • Mingyin Yao

摘要

The escalating prevalence of unhealthy dietary patterns has spurred the demand for micronutrient supplements, such as children’s Ca–Fe–Zn oral liquid. Although most trace elements exhibit analogous content and composition, variances in raw materials and manufacturing methodologies can influence product quality and bioavailability in children. Thus, two group children’s oral liquids were collected, each imbued with similar elemental compositions and contents. The sample preparation employed DFP (dropwise to filter paper) and SFP (soaking the filter paper). A comparative assessment of feature selection capabilities between XGBoost and Lasso was conducted. The features delineated by Lasso were deemed superior and thus selected as inputs for SVM, RF, and LightGBM models. Of these, the Lasso-SVM configuration exhibited the most potent analytical prowess. The RC2 values of 0.9612 and 0.9567 for DFP1 and DFP2, respectively, and 0.9584 and 0.9748 for SFP1 and SFP2, respectively. Correspondingly, the RP2 of 0.9496, 0.9354, 0.9389, and 0.9244, respectively. This work revealed that DFP is more conducive to real-time, on-site inspection of oral liquids. And investigation corroborates the viability of harnessing Laser-Induced Breakdown Spectroscopy (LIBS) in tandem with judicious data processing techniques to discern oral liquids with akin elemental contents. Through meticulous analysis of the LIBS spectra, the integrity of brand value for oral liquids, even those with minute compositional discrepancies, can be maintained.