Qunling Luo
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Qunling Luo has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Boxue Chang
School of Electronic Engineering and Automation, Guilin University of Electronic Technology, Guilin 541004, China
1 shared publication - Danping Lin
School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, China
1 shared publication - Yinlan Ruan
School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, China
1 shared publication - Zhiqiang Guo
School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin 541004, China
1 shared publication
Latest Publications
- Open Access
- 27 May 2025
- Published by MDPI AG in Applied Sciences
- Vol. 15 (11) , 6023
Miniaturized Near-Infrared Analyzer for Quantitative Detection of Trace Water in Ethylene Glycol
To address the limitations of a traditional Fourier-transform infrared (FTIR) spectrometer, including its bulky size, high cost, and unsuitability for on-site industrial detection, this study developed a Fourier-transform near-infrared (FT-NIR) absorption testing system utilizing Micro-Electro-Mechanical System (MEMS) technology for detecting trace water content in ethylene glycol. The modeling performances of three algorithms including Support Vector Machine Regression (SVMR), Principal Component Regression (PCR), and Partial Least Squares Regression (PLSR) were systematically evaluated, with PLSR identified as the optimal algorithm. To enhance predictive accuracy of water trace, spectral data were preprocessed using smoothing combined with first-derivative processing, and optimal selection of absorption wavelength feature was performed using interval Partial Least Squares (iPLS). Cross-batch external validation demonstrated a Limit of Detection (LOD) of 0.026% with 95% confidence which satisfies the rapid screening requirements for water exceedances (>0.1%) in industrial applications. These findings provide a robust technical foundation for developing handheld, in situ water detection devices.
- 27 May 2025
- Published by MDPI AG in Applied Sciences
- Vol. 15 (11) , 6023
Open AccessMiniaturized Near-Infrared Analyzer for Quantitative Detection of Trace Water in Ethylene Glycol
To address the limitations of a traditional Fourier-transform infrared (FTIR) spectrometer, including its bulky size, high cost, and unsuitability for on-site industrial detection, this study developed a Fourier-transform near-infrared (FT-NIR) absorption testing system utilizing Micro-Electro-Mechanical System (MEMS) technology for detecting trace water content in ethylene glycol. The modeling performances of three algorithms including Support Vector Machine Regression (SVMR), Principal Component Regression (PCR), and Partial Least Squares Regression (PLSR) were systematically evaluated, with PLSR identified as the optimal algorithm. To enhance predictive accuracy of water trace, spectral data were preprocessed using smoothing combined with first-derivative processing, and optimal selection of absorption wavelength feature was performed using interval Partial Least Squares (iPLS). Cross-batch external validation demonstrated a Limit of Detection (LOD) of 0.026% with 95% confidence which satisfies the rapid screening requirements for water exceedances (>0.1%) in industrial applications. These findings provide a robust technical foundation for developing handheld, in situ water detection devices.