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Carabajal MD, Bortolato SA, Lisandrini FT, Olivieri AC. An exhaustive analysis of the use of image moments for second-order calibration. A comparison with multivariate curve resolution-alternating least-squares. Anal Chim Acta 2024; 1288:342177. [PMID: 38220307 DOI: 10.1016/j.aca.2023.342177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND the chemometric processing of second-order chromatographic-spectral data is usually carried out with the aid of multivariate curve resolution-alternating least-squares (MCR-ALS). Recently, an alternative procedure was described based on the estimation of image moments for each data matrix and subsequent application of multiple linear regression after suitable variable selection. RESULTS The analysis of both simulated and experimental data leads to the conclusion that the image moment method, although can cope with chromatographic lack of reproducibility across injections, it only performs well in the absence of uncalibrated interferents. MCR-ALS, on the other hand, provides good analytical results in all studied situations, whether the test samples contain uncalibrated interferents or not. SIGNIFICANCE The results are useful to assess the real usefulness of newly proposed methodologies for second-order calibration in the case of chromatographic-spectral data sets, especially when samples contain unexpected chemical constituents.
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Affiliation(s)
- Maira D Carabajal
- Departamento de Química Analítica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina; Instituto de Química Rosario (CONICET-UNR), 27 de Febrero 210 Bis, 2000, Rosario, Argentina
| | - Santiago A Bortolato
- Departamento de Matemática, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina; Instituto de Química Rosario (CONICET-UNR), 27 de Febrero 210 Bis, 2000, Rosario, Argentina
| | - Franco T Lisandrini
- Physikalisches Institut, University of Bonn, Nussallee 12, 53115, Bonn, Germany
| | - Alejandro C Olivieri
- Departamento de Química Analítica, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, 2000, Rosario, Argentina; Instituto de Química Rosario (CONICET-UNR), 27 de Febrero 210 Bis, 2000, Rosario, Argentina.
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Long XM, Li R, Liu HP, Xia ZX, Guo S, Gu JX, Zhang LJ, Fan Y, Chen ZK. Chemical fingerprint analysis and quality assessment of Tibetan medicine Triphala from different origins by high-performance liquid chromatography. PHYTOCHEMICAL ANALYSIS : PCA 2023. [PMID: 37130825 DOI: 10.1002/pca.3228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 03/19/2023] [Accepted: 04/08/2023] [Indexed: 05/04/2023]
Abstract
INTRODUCTION Although the Tibetan medicine Triphala (THL) is widely used in many countries, insufficient progress has been made in quality control. OBJECTIVES The present study aimed to propose a methodology for quality control of THL based on HPLC fingerprinting combined with an orthogonal array design. METHODS Seven identified peaks were used as indicators to examine the effects of temperature, extraction time, and solid-liquid ratio on the dissolution of active ingredients in THL. Fingerprint analysis was performed on 20 batches of THL from four geographical areas (China, Laos, Thailand, and Vietnam). For further chemometric assessment, analysis techniques including similarity analysis, hierarchical clustering analysis, principal component analysis, and orthogonal partial least squares discrimination analysis (OPLS-DA) were used to classify the 20 batches of samples. RESULTS Fingerprints were established and 19 common peaks were identified. The similarity of 20 batches of THL was more than 0.9 and the batches were divided into two clusters. Four differential components of THL were identified based on OPLS-DA, including chebulinic acid, chebulagic acid, and corilagin. The optimal extraction conditions were an extraction time of 30 min, a temperature of 90°C, and a solid-liquid ratio of 30 mL/g. CONCLUSION HPLC fingerprinting combined with an orthogonal array design could be used for comprehensive evaluation and quality assessment of THL, providing a theoretical basis for further development and utilization of THL.
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Affiliation(s)
- Xiao-Mei Long
- Yunnan University of Chinese Medicine, Kunming, China
| | - Rong Li
- Yunnan University of Chinese Medicine, Kunming, China
| | - Hai-Peng Liu
- The Second Affiliated Hospital of Yunnan University of Chinese Medicine, Kunming, 650041, China
| | - Zong-Xiao Xia
- Yunnan University of Chinese Medicine, Kunming, China
| | - Shuang Guo
- Yunnan University of Chinese Medicine, Kunming, China
| | - Jian-Xing Gu
- Yunnan University of Chinese Medicine, Kunming, China
| | - Li-Jun Zhang
- Yunnan University of Chinese Medicine, Kunming, China
| | - Yuan Fan
- Yunnan University of Chinese Medicine, Kunming, China
- The Second Affiliated Hospital of Yunnan University of Chinese Medicine, Kunming, 650041, China
- The First Affiliated Hospital of Yunnan University of Chinese Medicine, Kunming, Yunnan, 650021, China
| | - Zu-Kun Chen
- Yunnan University of Chinese Medicine, Kunming, China
- The Second Affiliated Hospital of Yunnan University of Chinese Medicine, Kunming, 650041, China
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Zhou S, Tang X, Zou J, Zhu S. Quantitative analysis of terahertz signals using CWT-based spectrogram and Zernike image moments. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 290:122234. [PMID: 36565505 DOI: 10.1016/j.saa.2022.122234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/02/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
The combination of terahertz (THz) spectroscopic measurements and multivariate calibration techniques has become a well-established technique in many research fields. However, intentional or unintentional changes in environmental conditions, THz instruments and/or of the substance itself make the established calibration model becoming insufficient and inadequate for the further application. In this article, we introduce, discuss, and evaluate a new multivariate calibration method, the CWT-ZM, that combines the merits of the Zernike moment (ZM) invariance and the continuous wavelet transform (CWT) time-frequency analysis. With the help of a wavelet time-frequency analysis, the THz pulse is expanded into a two-dimensional (2D) time-frequency plane that provides richer and more direct characteristic information in the time and frequency domain simultaneously. In addition, Zernike moments provide linearly independent descriptors for the 2D time-frequency intensity image and are invariant to THz signal affine transformations, such as peak shifting, baseline drifting, and scaling. In this manner, we obtain a set of features that exhibit a high capability to capture the concentrations of the target compounds and a high invariance of the different measuring instruments and the variable environment. This approach results in a more robust regression system with improved generalization properties with respect to standard methods. Experiments were then conducted on a THz dataset of pharmaceutical tablets acquired by two different THz instruments, and these confirmed the effectiveness of the proposed approach. Furthermore, CWT-ZM is an extensible framework that can be combined with various spectral qualitative and quantitative analysis algorithms.
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Affiliation(s)
- Shengling Zhou
- College of Engineering and Technology, Southwest University, 400716 Chongqing, China; Chongqing Key Laboratory of Agricultural Equipment in Hilly and Mountainous Areas, Southwest University, 400716 Chongqing, China.
| | - Xin Tang
- College of Engineering and Technology, Southwest University, 400716 Chongqing, China
| | - Jiaqi Zou
- College of Engineering and Technology, Southwest University, 400716 Chongqing, China
| | - Shiping Zhu
- College of Engineering and Technology, Southwest University, 400716 Chongqing, China; Chongqing Key Laboratory of Agricultural Equipment in Hilly and Mountainous Areas, Southwest University, 400716 Chongqing, China.
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Lu SH, Zhang MC, Zhai HL, Bi KX, Zhao BQ. Rapid Determination in the Quality Control of Chinese Patent Medicine. J Pharm Innov 2022. [DOI: 10.1007/s12247-021-09608-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Muhire J, Li SS, Yin B, Mi JY, Zhai HL. A simple approach to the prediction of soil sorption of organophosphorus pesticides. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2021; 56:606-612. [PMID: 34162318 DOI: 10.1080/03601234.2021.1934358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Organophosphorus pesticides (OP) affect the crops and environments, and the reliable approach to the prediction of soil sorption of pesticides is required. In this respect, we proposed a simple Chemometrics approach, in which the Tchebichef image moment (TM) method was used to extract useful information from the greyscale images of molecular structures and the quantitative model was established by stepwise regression to predict the soil sorption of OPs. Different squared correlation coefficients including the leave-one-out cross-validation (LOO-CV) (Q2) that concerns the training set and the (R2test) which concerns the external independent test set are more than 0.96. This reflects that the established model has considerably high accuracy and reliability. Compared with the literature on the strategies of quantitative structure-property relationship (QSPR), the proposed method is more suitable, in which the established model shows a high predictive ability. Our study provides another effective approach to predict the soil sorption of OPs and also extends the innovative pathway of QSPR modelling.
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Affiliation(s)
- Jules Muhire
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, PR China
- School of Foreign Affairs, Hebei Foreign Studies University, Shijiazhuang, PR China
| | - Sha Sha Li
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, PR China
| | - Bo Yin
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, PR China
| | - Jia Ying Mi
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, PR China
| | - Hong Lin Zhai
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, PR China
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Yin B, Zhai HL, Zhao BQ, Bi KX, Mi JY. Chemometrics-assisted simultaneous voltammetric determination of multiple neurotransmitters in human serum. Bioelectrochemistry 2021; 139:107739. [PMID: 33485156 DOI: 10.1016/j.bioelechem.2021.107739] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 12/31/2020] [Accepted: 01/05/2021] [Indexed: 12/21/2022]
Abstract
An electrochemical method combining chemometrics was developed for simultaneous quantification of multiple neurotransmitters including Dopamine (DA), Epinephrine (EP), Norepinephrine (NE) and serotonin (5-hydroxytryptamine, 5-HT) in human blood serum. A reduced graphene oxide modified glassy carbon electrode (RGO/GCE) was prepared via electrodeposition method. Differential pulse voltammetry (DPV) measurement of the four neurotransmitters showed that the voltammetric signals of the four targets overlapped significantly. To facilitate the simultaneous determination of the neurotransmitters, a chemometric tool of Tchebichef curve moment (TcM) method was proposed. The TcMs calculated from the voltammograms were used to establish the quantitative models by stepwise regression. The intra-day and inter-day precisions of the proposed method were less than 3.5% and 8.1%, respectively, and the recoveries were from 87.4% to 124%. The limit of detection (LOD) for DA, EP, NE and 5-HT were 74 nM, 104 nM, 84 nM and 97 nM, respectively. The above results indicated that the proposed approach is simple and reliable for the simultaneous determination of multiple neurotransmitters in human serum.
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Affiliation(s)
- Bo Yin
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China; College of Chemistry & Chemical Engineering, Qinghai Normal University, Xining 810000, PR China
| | - Hong Lin Zhai
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China.
| | - Bing Qiang Zhao
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Ke Xin Bi
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Jia Ying Mi
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
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Yin B, Mi JY, Zhai HL, Zhao BQ, Bi KX. An effective approach to the early diagnosis of colorectal cancer based on three-dimensional fluorescence spectra of human blood plasma. J Pharm Biomed Anal 2020; 193:113757. [PMID: 33197831 DOI: 10.1016/j.jpba.2020.113757] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 11/03/2020] [Accepted: 11/04/2020] [Indexed: 11/16/2022]
Abstract
Colorectal cancer (CRC) is a common malignancy in the gastrointestinal tract, and its screening rates remain relatively low in the general population due to the lack of specific symptoms and effective methods. It is still in urgent need to develop rapid and reliable approach to the early diagnosis of CRC. Herein, based on the three-dimensional (3D) fluorescence spectra of human blood plasma, a combination strategy of Tchebichef image moments coupled with partial least squares-discriminate analysis (TM-PLS-DA) was proposed for the detection of CRC from three classes (CRC samples, adenomas samples and non-malignant findings). The established TM-PLS-DA classification model provided an 84 % correct classification for CRC prediction. Venetian blinds 10-fold cross validation was carried out. The error rates both in cross validation and test sets were less than 0.16. Sensitivity and specificity for CRC prediction were 0.95 and 0.88, respectively. At the same time, the diagnostic capacity of the proposed method was tested by receiver operating characteristics (ROC) analysis with area under the curve (AUC) of 0.94 for CRC diagnosis. These results demonstrate that the proposed TM-PLS-DA method based on the 3D fluorescence spectra of blood plasma has great advantage for the accurate CRC detection, which will provide a potential alternative approach for cancer diagnostics.
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Affiliation(s)
- Bo Yin
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China; College of Chemistry & Chemical Engineering, Qinghai Normal University, Xining, 810000, PR China
| | - Jia Ying Mi
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
| | - Hong Lin Zhai
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China.
| | - Bing Qiang Zhao
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
| | - Ke Xin Bi
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, 730000, PR China
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Lu SH, Zhai HL, Zhao BQ, Yin B, Zhu L. Novel Approach to the Analysis of Chemical Third-Order Data. J Chem Inf Model 2020; 60:4750-4756. [PMID: 32955255 DOI: 10.1021/acs.jcim.0c00554] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
For the more complex samples, chemical higher-order data can be collected from various information sources, which become the necessary foundation of accurate analysis. In this article, the Tchebichef cubic moment (TCM) was developed for the analysis of chemical third-order data for the first time. Then, the proposed TCM approach was applied to the fluorescence excitation-emission time data for the analysis of adrenaline and noradrenaline in urinary samples (Data I) and the data fusion of the excitation-emission matrix (EEM), NMR, and liquid chromatography-mass spectrometry (LC-MS) spectra for the determination of the five target components (Data II). For Data I, all of the cross-validation correlation coefficients (Rcv2) of the obtained linear models on the calibration set were more than 0.9937 and the prediction root-mean-square errors (RMSEp) of the external independent test samples were less than 0.0250 μM. For Data II, all of the Rcv2 were higher than 0.9846 and RMSEp were less than 0.2267 μM. Compared with several conventional methods, the proposed method was more convenient and accurate. This study provides another effective approach to the analysis of complex samples based on their chemical third-order data.
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Affiliation(s)
- Shao Hua Lu
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hong Lin Zhai
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Bing Qiang Zhao
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Bo Yin
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ling Zhu
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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Xu T, Li X, Huang M, Wang Q, Li C, Tian G, Chen Y. A Preferable Approach for the Quality Control of Xiaoer Chiqiao Qingre Granules Based on the Combination of Chromatographic Fingerprints and Chemometrics. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2020; 2020:6836981. [PMID: 33062374 PMCID: PMC7542504 DOI: 10.1155/2020/6836981] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 03/18/2020] [Indexed: 06/11/2023]
Abstract
A preferable approach of a combination of a multiwavelength fusion HPLC fingerprint and chemometrics for the quality control of Xiaoer Chiqiao Qingre granules (XCQG) was established in this study. A single-wavelength HPLC fingerprint was performed to identify 18 peaks as common peaks in the beginning, and 12 of them were recognized by HPLC-Q/TOF-MS. To overcome the limitation of the single-wavelength HPLC fingerprint, a three-wavelength (230 nm, 250 nm, and 330 nm) fusion fingerprint was established for a more thorough quality assessment. Six main active ingredients (geniposide, paeoniflorin, forsythin, forsythoside A, baicalin, and wogonoside) were selected as chemical markers for simultaneous quantitative analysis, while the results indicated that the content of other five ingredients except forsythoside A presented comparatively stable. Chemometrics including hierarchical cluster analysis (HCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) were performed to evaluate the homogeneity and heterogeneity of sixteen batches of XCQG. The results of the multiwavelength fingerprint were clearly classified into two clusters by HCA, whereas the single-wavelength fingerprint showed no distinct difference between them. OPLS-DA was further employed to prove that the above six main active ingredients made great contributions to clustering. In summary, this integrated analysis provided a better promoted and more comprehensive method to control the quality of XCQG.
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Affiliation(s)
- Tong Xu
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- The State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
| | - Xiaoqi Li
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-Component of Traditional Chinese Medicine and Microecology Research Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Mengmeng Huang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-Component of Traditional Chinese Medicine and Microecology Research Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Qi Wang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-Component of Traditional Chinese Medicine and Microecology Research Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Chao Li
- Jumpcan Pharmaceutical Co., Ltd., Taixing 225400, China
| | - Gang Tian
- Jumpcan Pharmaceutical Co., Ltd., Taixing 225400, China
| | - Yan Chen
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-Component of Traditional Chinese Medicine and Microecology Research Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
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Li SS, Lu SH, Zhai HL, Yin B, Mi JY. A simple approach to the determination of three curcuminoids with similar chemical structures in different substrates. Journal of Food Science and Technology 2020; 58:2170-2177. [PMID: 33967314 DOI: 10.1007/s13197-020-04727-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/15/2020] [Accepted: 08/13/2020] [Indexed: 11/24/2022]
Abstract
The determination of curcuminoids in mixtures is more difficult due to their similar chemical structures as well as serious interferences, thus the complex pretreatments of samples and the optimization of experimental conditions are often required. Here, owing to the mathematical separation of chemical signals by Tchebichef image moments, a simple and effective approach to the simultaneous quantitative analysis was proposed, and applied to the determination of the three curcuminoids in turmeric and curry based on their raw fluorescence 3D spectra. For the established linear models, the leave-one-out correlation coefficients (R loo-cv) were more than 0.9816 within the linear ranges, and the predictive correlation coefficients (R p) for the external independent samples were more than 0.9897. The intra- and inter-day precision (less than 6.82%, RSD), average spiked recovery (89.9% ~ 100.8%), LOD (less than 0.07 μg/mL) and LOQ (less than 0.23 μg/mL) suggest that the proposed approach is accurate and reliable. Compared with N-PLS and MCR-ALS methods, our method can obtain more satisfactory results. This study provides a convenient pathway for the rapid analysis of multi-target components with similar chemical structures in mixture of different substrates.
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Affiliation(s)
- Sha Sha Li
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 People's Republic of China
| | - Shao Hua Lu
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 People's Republic of China
| | - Hong Lin Zhai
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 People's Republic of China
| | - Bo Yin
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 People's Republic of China
| | - Jia Ying Mi
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000 People's Republic of China
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Feng CH, Otani C. Terahertz spectroscopy technology as an innovative technique for food: Current state-of-the-Art research advances. Crit Rev Food Sci Nutr 2020; 61:2523-2543. [PMID: 32584169 DOI: 10.1080/10408398.2020.1779649] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
With the dramatic development of source and detector components, terahertz (THz) spectroscopy technology has recently shown a renaissance in various fields such as medical, material, biosensing and pharmaceutical industry. As a rapid and noninvasive technology, it has been extensively exploited to evaluate food quality and ensure food safety. In this review, the principles and processes of THz spectroscopy are first discussed. The current state-of-the-art applications of THz and imaging technologies focused on foodstuffs are then discussed. The advantages and challenges are also covered. This review offers detailed information for recent efforts dedicated to THz for monitoring the quality and safety of various food commodities and the feasibility of its widespread application. THz technology, as an emerging and unique method, is potentially applied for detecting food processing and maintaining quality and safety.
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Affiliation(s)
- Chao-Hui Feng
- RIKEN Centre for Advanced Photonics, RIKEN, Sendai, Japan
| | - Chiko Otani
- RIKEN Centre for Advanced Photonics, RIKEN, Sendai, Japan.,Department of Physics, Tohoku University, Sendai, Miyagi, Japan
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Muhire J, Li BQ, Zhai HL, Li SS, Mi JY. A Simple Approach to the Toxicity Prediction of Anilines and Phenols Towards Aquatic Organisms. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 78:545-554. [PMID: 31915850 DOI: 10.1007/s00244-019-00703-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 12/27/2019] [Indexed: 06/10/2023]
Abstract
Chemicals pollution in the environment has attracted attention all over the world, and the toxicity prediction of chemical pollutants has become quite important. In this paper, we introduce a simple approach to predict the toxicity of some chemical components, in which the Tchebichef image moment (TM) method was employed to extract useful chemical information from the images of molecular structures to establish quantitative structure-activity relationship (QSAR) prediction models. The proposed approach was applied to predict the toxicity of anilines and phenols for the aquatic organisms of P. subcapitata and V. fischeri, in which the obtained TMs were defined as the independent variables, while the biological toxicity (pEC50) was regarded to be the dependent variable. Then, the predictive models were established by stepwise regression, respectively. The obtained squared correlation coefficients of leave-one-out cross-validation (Q2) for training sets and the predictive squared correlation coefficients (Rp2) for test sets of the two groups of data were higher than 0.79 and 0.75, respectively, which indicated that the obtained models possessed satisfactory accuracy and reliability. Compared with several reported methods, the proposed approach was more convenient and has a higher predictive capability. Our study provides another perspective in QSAR research.
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Affiliation(s)
- Jules Muhire
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Bao Qiong Li
- School of Biotechnology & Health Sciences, Wuyi University, Jiangmen, 529020, People's Republic of China
| | - Hong Lin Zhai
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China.
| | - Sha Sha Li
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Jia Ying Mi
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, 730000, People's Republic of China
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Muhire J, Zhai HL, Lu SH, Li SS, Yin B, Mi JY. The activity prediction of indole inhibitors against HCV NS5B polymerase. Chem Biol Drug Des 2019; 95:240-247. [PMID: 31623027 DOI: 10.1111/cbdd.13637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 08/31/2019] [Accepted: 09/21/2019] [Indexed: 12/12/2022]
Abstract
Non-structural viral protein 5B (NS5B) is a viral protein in hepatitis C virus. Although various inhibitors against NS5B have been found, the activity prediction of similar untested inhibitors is still highly desirable. In this respect, the Tchebichef moments (TMs) calculated from the images of molecular structures were regarded as the independent variables while the inhibitory activity (pIC50 ) was the dependent variable, and the predictive model was established by means of stepwise regression. The R-squared of leave-one-out cross-validation (Q2 ) for the training set and the R-squared of prediction ( R p 2 ) for external independent test set were 0.919 and 0.927, respectively. The obtained model was also evaluated strictly. Compared with the multivariate curve resolution with alternating least squares (MCR-ALS) and the QSAR approaches derived from the literature, the proposed method is more accurate and reliable. This study not only provides an effective approach to predict the biological activity of RNA replication's inhibitors, but also extends the QSAR modeling technique.
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Affiliation(s)
- Jules Muhire
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Hong Lin Zhai
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Shao Hua Lu
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Sha Sha Li
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Bo Yin
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, China
| | - Jia Ying Mi
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou, China
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14
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Mi JY, Zhai HL, Yin B, Li SS, Lu SH. Applications of Discrete Shmaliy Moments on the Quantitative Analysis of Multitarget Compounds Based on the Chemical Spectra. J Chem Inf Model 2019; 59:4159-4166. [DOI: 10.1021/acs.jcim.9b00386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jia Ying Mi
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Hong Lin Zhai
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Bo Yin
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Sha Sha Li
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
| | - Shao Hua Lu
- College of Chemistry & Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China
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15
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Lu SH, Li SS, Yin B, Mi JY, Zhai HL. The rapid quantitative analysis of three pesticides in cherry tomatoes and red grape samples with Tchebichef image moments. Food Chem 2019; 290:72-78. [DOI: 10.1016/j.foodchem.2019.03.118] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 03/17/2019] [Accepted: 03/23/2019] [Indexed: 11/29/2022]
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16
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Zhou F, Sultanbawa Y, Feng H, Wang YL, Meng Q, Wang Y, Zhang Z, Zhang R. A New Red-Emitting Fluorescence Probe for Rapid and Effective Visualization of Bisulfite in Food Samples and Live Animals. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4375-4383. [PMID: 30865447 DOI: 10.1021/acs.jafc.8b07110] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The development of new methods for rapid and effective detection of bisulfite (HSO3-) in food samples and imaging of HSO3- intake in animals is of significant importance due to the key roles of HSO3- in food quality assurance and community health. In this work, a new responsive fluorescence probe, EQC, is reported for the quantitative detection of HSO3- in food samples and visualization of HSO3- intake in animals. Upon addition of HSO3-, the UV-vis absorption and red emission of EQC were significantly decreased within 120 s. The changes in absorption and emission spectra of EQC were rationalized by theoretical computations. The proposed reaction mechanism of EQC with HSO3- was confirmed by high-resolution mass spectrometry (HRMS) and spectroscopic titration measurements. EQC has the advantages of high sensitivity, selectivity (a detection limit of 18.1 nM), and fast response toward HSO3-, which enable rapid and effective HSO3- detection in buffer solution. The practical applications of EQC were demonstrated by the detection of HSO3- in food samples and the imaging of HSO3- intake in live animals.
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Affiliation(s)
- Fang Zhou
- School of Chemical Engineering , University of Science and Technology Liaoning , Anshan , Liaoning 114051 , People's Republic of China
| | - Yasmina Sultanbawa
- Queensland Alliance for Agricultural and Food Innovation (QAAFI) , The University of Queensland , Brisbane 4072 , Australia
| | - Huan Feng
- School of Chemical Engineering , University of Science and Technology Liaoning , Anshan , Liaoning 114051 , People's Republic of China
| | - Yong-Lei Wang
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory , Stockholm University , SE-106 91 Stockholm , Sweden
| | - Qingtao Meng
- School of Chemical Engineering , University of Science and Technology Liaoning , Anshan , Liaoning 114051 , People's Republic of China
| | - Yue Wang
- School of Chemical Engineering , University of Science and Technology Liaoning , Anshan , Liaoning 114051 , People's Republic of China
| | - Zhiqiang Zhang
- School of Chemical Engineering , University of Science and Technology Liaoning , Anshan , Liaoning 114051 , People's Republic of China
| | - Run Zhang
- School of Chemical Engineering , University of Science and Technology Liaoning , Anshan , Liaoning 114051 , People's Republic of China
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , Brisbane 4072 , Australia
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17
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Yin B, Li SS, Lu SH, Mi JY, Zhai HL. Simultaneous quantification of multiple endogenous biothiols in cancer cells based on a multi-signal fluorescent probe. Analyst 2019; 144:4575-4581. [DOI: 10.1039/c9an00691e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The feature information was extracted from the 3D spectrum by the TM method, and the simultaneous quantification of intracellular thiols was realized.
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Affiliation(s)
- Bo Yin
- College of Chemistry & Chemical Engineering
- Lanzhou University
- Lanzhou
- PR China
| | - Sha Sha Li
- College of Chemistry & Chemical Engineering
- Lanzhou University
- Lanzhou
- PR China
| | - Shao Hua Lu
- College of Chemistry & Chemical Engineering
- Lanzhou University
- Lanzhou
- PR China
| | - Jia Ying Mi
- College of Chemistry & Chemical Engineering
- Lanzhou University
- Lanzhou
- PR China
| | - Hong Lin Zhai
- College of Chemistry & Chemical Engineering
- Lanzhou University
- Lanzhou
- PR China
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