Discovery and experimental verification of the spectral characteristics at different growth stages of Aurelia

Article Spectroscopy

Quality control strategies of medicine food homology materials based on fingerprint profiling and chemometrics: Citri Reticulata Pericarpium as an example

Miao Liu et al.

Summary: The study developed a reliable and feasible strategy for the comprehensive quality control of medicine food homology materials (MFHM). By applying comprehensive quantified fingerprint method (CQFM), high performance liquid chromatography (HPLC) fingerprints and Fourier transform mid-infrared (FT-MIR) quantized fingerprints were successfully developed to comprehensively evaluate the overall quality of Citri Reticulata Peri-carpium (CRP). The results showed that the developed methods had good discrimination ability and could accurately distinguish and predict the storage period of CRP, providing a reliable and scientific reference scheme for the future quality control of MFHM.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY (2023)

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Article Spectroscopy

A detection method of typical toxic mixed red tide algae in Qinhuangdao based on three-dimensional fluorescence spectroscopy

Si-yuan Wang et al.

Summary: In this study, three-dimensional fluorescence spectroscopy and chemometrics were used to identify typical toxic mixed red tide algae in the Qinhuangdao sea area. The results showed that the principal component feature extraction and genetic optimization support vector machine classification method can effectively identify toxic red tide algae in the Qinhuangdao sea area.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY (2023)

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Article Spectroscopy

Benzophenoxazine-based colorimetric and fluorescent probe for highly sensitive detection of amines and food freshness

Hongjin Wang et al.

Summary: In this study, a chromogenic and near infrared (NIR) region fluorogenic dual-channel probe NRB was developed for visual detection of gaseous amines. The probe exhibited a wide fluorescent emission band in the NIR region with a peak at 615 nm when stimulated by the target compound. The sensing mechanism was confirmed to be a nucleophilic substitution reaction rather than ester hydrolysis. Furthermore, the probe showed potential for real-time monitoring of food freshness and remained stable during the quality guarantee period for perishable packaged food.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY (2023)

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Article Spectroscopy

Identification of ichthyotoxic red tide algae based on three-dimensional fluorescence spectra and particle swarm optimization support vector machine

Si-yuan Wang et al.

Summary: By combining 3D fluorescence spectrum and particle swarm optimization support vector machine, a rapid and accurate detection method for ichthyotoxic red tide algae was developed, achieving a classification accuracy of 100% and successfully applied to identify the toxicity of different algae.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY (2022)

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Article Spectroscopy

Identification of paralytic shellfish poison producing algae based on three-dimensional fluorescence spectra and quaternion principal component analysis

Si-yuan Wang et al.

Summary: A new feature extraction method based on quaternion principal component analysis is investigated to improve the identification accuracy of paralytic shellfish poison producing algae, providing an experimental basis for accurate monitoring technology of three-dimensional fluorescence spectrum.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY (2021)

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Article Marine & Freshwater Biology