Real-Time Analysis of Potassium in Infant Formula Powder by Data-Driven Laser-Induced Breakdown Spectroscopy
| العنوان: | Real-Time Analysis of Potassium in Infant Formula Powder by Data-Driven Laser-Induced Breakdown Spectroscopy |
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| المؤلفون: | Junxin Liu, Qifeng Li, Zhixuan Huang, Jing Zong, Da Chen |
| المصدر: | Frontiers in Chemistry Frontiers in Chemistry, Vol 6 (2018) |
| بيانات النشر: | Frontiers Media S.A., 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Discrete wavelet transform, Materials science, Potassium, chemistry.chemical_element, 02 engineering and technology, Interference (wave propagation), 01 natural sciences, Data-driven, lcsh:Chemistry, Sample preparation, Laser-induced breakdown spectroscopy, Spectroscopy, Original Research, modified random frog algorithm, potassium, 010401 analytical chemistry, infant formula, General Chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Chemistry, laser-induced breakdown spectroscopy, chemistry, Infant formula, lcsh:QD1-999, higher density wavelet transform, 0210 nano-technology, Biological system |
| الوصف: | Potassium represents one of the most crucial minerals in infant formula that supports healthy growth and development of infants. Here, a novel strategy for the real-time quantification of potassium in infant formula samples is introduced. Using laser-induced breakdown spectroscopy (LIBS) in a data-driven approach, a modified random frog algorithm (MRFA) is adopted in a higher-density discrete wavelet transform (HDWT) domain for the selection of the most important features related to potassium, which is named as DD-LIBS. In DD-LIBS, the HDWT oversamples the LIBS signals in both time and frequency domains by a factor of two, enhancing the spectral expandability in an approximately shift-invariant way. The MRFA is thus capable of isolating the features of potassium with experience accumulated from the collected LIBS data. Such pretreatment combined with a partial least squared (PLS) model can significantly suppress the uncontrolled shift and broadening effects on multivariate calibration, improving the capability of LIBS for accurate quantification of potassium. The present work demonstrates the feasibility of DD-LIBS for the quantification of potassium content of 90 commercial infant formula samples. A satisfactory result illustrates DD-LIBS as a feasible tool for real-time analysis of potassium content with little sample preparation. This strategy may be well extended to other element detection in the presence of uncontrolled interference. |
| اللغة: | English |
| تدمد: | 2296-2646 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::decc3e431d82a37cb402c107f1975f2bTest http://europepmc.org/articles/PMC6080072Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....decc3e431d82a37cb402c107f1975f2b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 22962646 |
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