{"title":"Preparation of the conjugated hypercrosslinked polymers containing phenylenediamine and phenylenetriamine derivatives for fluorescent sensing of three nitrophenols","authors":"Yun-Long Gui, Heng Xu, Tong-Mou Geng, Yu-Xin Guo","doi":"10.1016/j.saa.2025.126022","DOIUrl":"10.1016/j.saa.2025.126022","url":null,"abstract":"<div><div>Hypercrosslinked polymers (HCPs) are the most promising porous organic polymers for large-scale production due to their easy preparation, extensive raw material source, good stability, and large specific surface area. However, due to the lack of extended conjugability, their application in fluorescence sensing is limited. Herein, three conjugated hypercrosslinked polymers (the conjugated HCPs: TPPDA-DMB, TDPAB-DMB, and MTDAB-DMB) were easily prepared by the Friedel-Craft arylation reactions with phenylenediamine or phenylenetriamine derivatives and p-dimethoxybenzene (DMB). The extended conjugated structures and the 3D networks give the conjugated HCPs excellent fluorescence properties and fluorescence sensing performance for nitrophenols. TPPDA-DMB can sense 2,4-dinitrophenol (DNP) and picric acid (PA) with K<sub>SV</sub> values of 1.31 × 10<sup>4</sup> and 1.43 × 10<sup>4</sup> L mol<sup>-1</sup>, TDPAB-DMB can sense PA and o-nitrophenol (o-NP) with K<sub>SV</sub> values of 9.97 × 10<sup>3</sup> and 7.54 × 10<sup>3</sup> L mol<sup>-1</sup>, and MTDAB-DMB can sense DNP and PA with K<sub>SV</sub> values of 2.42 × 10<sup>3</sup> and 1.01 × 10<sup>4</sup> L mol<sup>-1</sup>, respectively. Experiments and theoretical calculations show that the fluorescence quenching mechanisms of the nitrophenols to the conjugated HCPs include electron transfer and energy transfer processes.</div></div>","PeriodicalId":433,"journal":{"name":"Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy","volume":"335 ","pages":"Article 126022"},"PeriodicalIF":4.3,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lu Chen, Jiajia Fan, Xiaoling Liu, Ming Cai, Guoxiang Sun
{"title":"Evaluating quality consistency of Celosiae Cristatae Flos by four dimensional fingerprints combined with antioxidant activity","authors":"Lu Chen, Jiajia Fan, Xiaoling Liu, Ming Cai, Guoxiang Sun","doi":"10.1016/j.saa.2025.125985","DOIUrl":"10.1016/j.saa.2025.125985","url":null,"abstract":"<div><div><em>Celosiae Cristatae Flos</em> (CCF) has haemostatic and anti-dysentery properties, making it a natural medicine worthy of further development. However, there are few studies on it and most of them are based on high performance liquid chromatography. Consequently, there is a need to develop a comprehensive quality evaluation method based on multiple analytical techniques to reveal the composition of CCF. In this study, a combination of electrochemistry (EC), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR) and ultraviolet spectroscopy (UV) was used to provide a comprehensive analysis for CCF. Firstly, the characteristic parameters of the EC were analyzed and the quality of the CCF was initially assessed using systematically quantified fingerprint method (SQFM). Secondly, the antioxidant activity of CCF was analyzed and the <strong><em>IC</em></strong><sub>50</sub> values were in the range of 0.0390–0.0442 g/mL indicating that the antioxidant activity of CCF was strong. A correlation between the electrochemical fingerprint (ECFP) and the antioxidant ability was also found. Finally, the coefficient of variation weighted mean algorithm (CVWM) calculated the weighting factors of the four fingerprints, which were used to integrate ECFP with DSC-FTIR-UV quantum fingerprint. <strong><em>S</em></strong><sub>f</sub> (macroscopic qualitative similarity) was between 0.972 and 0.992 and <strong><em>P</em></strong><sub>f</sub> (macroscopic quantitative similarity) was between 80.9 and 127.2 %, indicating that the 19 batches of CCFs met the basic quality requirements, but there were grade differences. This study developed a comprehensive quality control method to ensure the safety and efficacy of herbal medicines.</div></div>","PeriodicalId":433,"journal":{"name":"Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy","volume":"336 ","pages":"Article 125985"},"PeriodicalIF":4.3,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nathan Ferrandin-Schoffel , Sophie Cersoy , Sophie Desrosiers , Annabel Vallard
{"title":"Exploring the influence of wild silks composition on dyeing with turmeric and indigo: Spectroscopic insights","authors":"Nathan Ferrandin-Schoffel , Sophie Cersoy , Sophie Desrosiers , Annabel Vallard","doi":"10.1016/j.saa.2025.126019","DOIUrl":"10.1016/j.saa.2025.126019","url":null,"abstract":"<div><div>“Wild” silks, produced by various silkworm species, are often valued in textile production, but present greater challenges in dyeing compared to the “domestic” mulberry silk from <em>Bombyx mori</em>. This study investigates the reasons behind these challenges, focusing on key components such as fibroin, sericin proteins, and calcium oxalate crystals. The degumming process, which removes sericin, generally enhances dye penetration; however, its efficiency varies with the type of silk and its chemical composition. Using Fourier-transform infrared (FTIR), Raman spectroscopy, and UV–Visible spectroscopy, we characterized the composition of cocoon samples from 11 different silkworms, both with and without a preliminary degumming step, and assessed their dyeing behavior with turmeric and indigo dyes. FTIR provided insights into the molecular structure and physico-chemical interactions within the silk fibers, while UV–Visible spectroscopy quantified dye sorption. Our findings demonstrate that effective degumming is crucial for dye uptake, with greater degumming loss often leading to a higher and more homogenous dye sorption. In some cases, the degumming procedure did not completely remove sericin, the latter of which not only physically impedes dye penetration into the silk mass but also forms physicochemical interactions with the dye, influencing the overall sorption capacity. Additionally, the presence of calcium oxalate crystals – particularly in wild silks like <em>Antheraea paphia</em> – can further impede dye sorption. Corroborating images obtained using optical digital microscopy supported these findings.</div></div>","PeriodicalId":433,"journal":{"name":"Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy","volume":"336 ","pages":"Article 126019"},"PeriodicalIF":4.3,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Meenakshi , Abhishek Bera , Ashok Kumar , Mukesh Kumar , Rohith P John
{"title":"An efficient coumarin-based thiosemicarbazone probe for ratiometric fluorescent sensing of Zn2+ and application in live cell imaging","authors":"Meenakshi , Abhishek Bera , Ashok Kumar , Mukesh Kumar , Rohith P John","doi":"10.1016/j.saa.2025.126006","DOIUrl":"10.1016/j.saa.2025.126006","url":null,"abstract":"<div><div>Selective recognition of Zn<sup>2+</sup> in biological and environmental samples is a challenge. An N, N-diethyl substituted coumarin thiosemicarbazone was designed as a fluorogenic sensor, HADICIT, [(E)-2-(1-(7-(diethylamino)-2-oxo-2H-chromen-3-yl)ethylidene)-N-isopropylhy drazine-1-carbothioamide] for the detection of Zn<sup>2+</sup> to address the issue. The compound was characterized using FTIR, <sup>1</sup>H NMR, <sup>13</sup>C NMR, and mass spectrometry methods. The fluorogenic probe produces a selectively enhanced red-shift emission response in solution upon the addition of Zn<sup>2+</sup> compared to other competing metal ions. The optical and fluorescence titration experiments suggest a 2:1 binding ratio of HADICIT to Zn<sup>2+</sup>, with an association constant of 3.33 × 10<sup>6</sup> M<sup>−1</sup>. The limit of detection (LoD) of HADICIT is found to be 86 nM, which is much below the WHO recommended standards in environment samples. Frontier molecular orbital calculations suggest intra-ligand charge transfer (ILCT) transitions. Cell imaging on HEK 293 cells using HADICIT indicates that the probe can detect Zn<sup>2+</sup> ions in live cells.</div></div>","PeriodicalId":433,"journal":{"name":"Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy","volume":"336 ","pages":"Article 126006"},"PeriodicalIF":4.3,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qian Yan , Runhua Yao , Hongfei Han , Ruiqiang Hang , Hua Wang
{"title":"Enhanced π-conjugation in hybridized local and charge transfer emitters for efficient red OLEDs and bioimaging","authors":"Qian Yan , Runhua Yao , Hongfei Han , Ruiqiang Hang , Hua Wang","doi":"10.1016/j.saa.2025.126021","DOIUrl":"10.1016/j.saa.2025.126021","url":null,"abstract":"<div><div>Red-emitting materials have significantly advanced the development of materials for OLEDs and bioimaging. However, traditional red dyes often suffer from the 5 % external quantum efficiency (EQE) limit and aggregation-caused quenching (ACQ), which impede their practical applications. Herein, two red-emitting materials, <strong>TPA-QP</strong> and <strong>Cz-Ph-QP</strong> were designed and synthesized with donor–acceptor (D-A) structures. The ratio of localized π-conjugation to intramolecular charge transfer components was rationally adjusted due to the different spatial configurations of the donor units. Both emitters exhibited hybridized local and charge transfer (HLCT) characteristics and the higher planarity of the <strong>TPA-QP</strong> molecular structure enhanced π-conjugation and facilitated effective hybridization between the locally excited (LE) and charge transfer (CT), resulting in deep-red (DR) emission at 680 nm and high photoluminescence quantum yields of 15.6 %. Furthermore, <strong>TPA-QP</strong>-based OLED demonstrated emission closer to the standard saturated red (<em>λ</em> = 657 nm, CIE coordinates of (0.65, 0.33)) with an excellent maximum EQE of 6.47 % and low efficiency roll-off. Additionally, the fabricated nanoparticles (<strong>TQ NPs</strong>) showed deep-red emission (<em>λ</em> = 682 nm) and were successfully applied in cellular imaging. The results provide deeper insights into the effects of spatial configuration changes on promoting the luminescence performance of the long-wavelength HLCT molecules.</div></div>","PeriodicalId":433,"journal":{"name":"Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy","volume":"336 ","pages":"Article 126021"},"PeriodicalIF":4.3,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhenqi Zhu , Hui Xu , Ting Zhang , Jiafeng Meng , Yanwei Tong , Kun Wang , Bing Zhang , Bin Yang
{"title":"Probing ultraviolet-induced dissociation of hydrogen bond networks in tyrosine by terahertz spectroscopy","authors":"Zhenqi Zhu , Hui Xu , Ting Zhang , Jiafeng Meng , Yanwei Tong , Kun Wang , Bing Zhang , Bin Yang","doi":"10.1016/j.saa.2025.126004","DOIUrl":"10.1016/j.saa.2025.126004","url":null,"abstract":"<div><div>Tyrosine (Tyr) has gained significant attention as one of the most sensitive amino acids. Its oxidation is accompanied by changes in hydrogen bonds, so the oxidation process of Tyr is monitored and the dissociation sequence of different hydrogen bond network is elucidated based on the sensitivity of terahertz (THz) waves to intermolecular interactions. We find that the peak height of Tyr at 0.97 THz and 2.08 THz decreases with time, but the change behavior of the two is different. Combined with density functional theory (DFT), this phenomenon is attributed to the difference of factors that dominate THz vibration. The weakening of the peak height of Tyr at 0.97 THz is due to the ordered dissociation of hydrogen bonds with different intensities, while the peak at 2.08 THz mainly involves the lattice itself. This means that the peak at 0.97 THz is a more accurate parameter for characterizing the oxidation process. Our study reveals the hydrogen bond changes of Tyr when its structure is destroyed, and provides a spectral technique for monitoring and preventing harmful oxidation reactions using hydrogen bond network evolution.</div></div>","PeriodicalId":433,"journal":{"name":"Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy","volume":"335 ","pages":"Article 126004"},"PeriodicalIF":4.3,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ramy Abdlaty, Mohamed A. Abbass, Ahmed M. Awadallah
{"title":"Toward near real-time precise supervision of radiofrequency ablation for liver fibrosis using hyperspectral imaging","authors":"Ramy Abdlaty, Mohamed A. Abbass, Ahmed M. Awadallah","doi":"10.1016/j.saa.2025.125994","DOIUrl":"10.1016/j.saa.2025.125994","url":null,"abstract":"<div><h3>Background and Aims</h3><div>Chronic liver diseases pose a significant global health concern, ranking as the 11th leading cause of death worldwide. It often progresses to organ fibrosis and severe complications such as portal hypertension and cirrhosis. Liver transplantation is the most effective treatment for such diseases, however, the persistent shortage of donors highlights the need for alternatives. Radiofrequency ablation (RFA) is a promising alternative since it is a minimally invasive procedure. RFA uses heat to destroy abnormal tissues. Its benefits include reduced recovery time compared to surgery, precise targeting of affected areas, and long-lasting symptom relief in many cases. However, RFA has challenges, such as potential risks of nerve damage, infection, or incomplete ablation, requiring repeat treatments. Although significant progress in RFA techniques, effective monitoring remains challenging due to the limited ability to accurately characterize the dynamic thermal diffusion and complex tissue responses.</div></div><div><h3>Methods</h3><div>To address this challenge, hyperspectral imaging (HSI) shows promise in monitoring tissue necrosis post-ablation. Our study evaluated HSI’s efficacy in monitoring RFA on ex vivo human fibrotic liver tissue samples.</div></div><div><h3>Results</h3><div>Statistical analysis revealed correlations between spectral patterns and tissue conditions, which helped identify the optimal spectral bands of 543 nm and 579 nm for accurately distinguishing different tissue states. Analyzing the hemoglobin absorption profile indicated significant reductions in absorption of the green light band, showing approximately 40 % reduction in fibrotic tissue and around 20 % reduction in ablated tissue when compared to normal liver tissue. Additionally, a threshold was established for predicting the ablated area of liver samples, ensuring a condition of 90 % specificity.</div></div><div><h3>Conclusions</h3><div>Consequently, HSI proved to be a valuable tool for monitoring ablation and a step for improving treatment outcomes for liver fibrosis<em>.</em></div></div>","PeriodicalId":433,"journal":{"name":"Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy","volume":"336 ","pages":"Article 125994"},"PeriodicalIF":4.3,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A contemporary overview on quantum dots-based fluorescent biosensors: Exploring synthesis techniques, sensing mechanism and applications","authors":"Anushka Yadav , Priyanka Dogra , Pinky Sagar , Monika Srivastava , Amit Srivastava , Rajneesh Kumar , S.K. Srivastava","doi":"10.1016/j.saa.2025.126002","DOIUrl":"10.1016/j.saa.2025.126002","url":null,"abstract":"<div><div>In the epoch of bioinformatics, pivotal biomedical scrutiny and clinical diagnosis hinge upon the unfolding of highly efficacious biosensors for intricate and targeted identification of specific biomolecules. In pursuit of developing robust biosensors endowed with superior sensitivity, precise selectivity, rapid performance, and operational simplicity, semiconductor QDs have been acknowledged as pivotal and advantageous entities. In this review, we present a comprehensive analysis of the latest unfolding within the domain of QDs used in fluorescent biosensors for the detection of diverse biomolecular entities, encompassing proteins, nucleic acids, and a range of small molecules, with an emphasis on the synthesis methodologies of QDs employed and mechanism behind sensing. Additionally, this review delves into several pivotal facets of QD-based fluorescent biosensors in detail, such as surface functionalization methodologies aimed at enhancing biocompatibility and improving target specificity. The challenges and future perspectives of QD-based fluorescent biosensors are also considered, emphasizing the necessity of ongoing multidisciplinary research to realize their full potential in enhancing personalized medicine and biomedical diagnostics.</div></div>","PeriodicalId":433,"journal":{"name":"Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy","volume":"335 ","pages":"Article 126002"},"PeriodicalIF":4.3,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shunyang Liu , Wanhong Yao , Zengjihong Zhao , Yuanfang Zhou , Lili Chen , Yuan Ji , Renjie Wang , Shouzhi Pu
{"title":"AIE luminogens based on 9, 10-dithienylanthracene with a D-A-D structure: Design, synthesis and application in cell imaging","authors":"Shunyang Liu , Wanhong Yao , Zengjihong Zhao , Yuanfang Zhou , Lili Chen , Yuan Ji , Renjie Wang , Shouzhi Pu","doi":"10.1016/j.saa.2025.126003","DOIUrl":"10.1016/j.saa.2025.126003","url":null,"abstract":"<div><div>Three novel D-A-D-structured emitters derived from 9, 10-dithienylanthracene derivatives (<strong>DTA</strong>s) were synthesized and characterized. These <strong>DTA</strong>s consist of substituted 9-phenyl-9<em>H</em>-carbazole (<strong>BPCB-DTA</strong>), triphenylamine (<strong>BTPA-DTA</strong>) and N, N-dimethylaniline (<strong>BDMA-DTA</strong>) as donor units, with the phenylacetonitrile group serving as the acceptor. The impact of steric hindrance and electronic effect of the substituents on the optical properties has been thoroughly discussed. All <strong>DTA</strong>s exhibited aggregation-induced emission, except for <strong>BDMA-DTA</strong>, which displayed gradual fluorescence quenching as the water fraction increased from 0 to 90 %. Scanning electron microscope analysis revealed that aggregates formed morphologically regular nanorods due to the self-assembled process. Moreover, <strong>BPCB-DTA</strong> and <strong>BTPA-DTA</strong> demonstrated reversible mechanofluorochromic and vapochromic luminescence behaviors with a high color contrast mechanofluorochromism ranging from yellow to bright green coloration. These results suggest that large volume and non-coplanar fluorophores play a crucial role in constructing <strong>DTA</strong>-type AIE dyes. Additionally, fluorescence imaging experiments conducted on HeLa cells confirmed the bio-imaging capabilities of these <strong>DTA</strong>s.</div></div>","PeriodicalId":433,"journal":{"name":"Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy","volume":"335 ","pages":"Article 126003"},"PeriodicalIF":4.3,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A new nanosilver surface plasmon resonance Rayleigh scattering method for determination of trace tert-butylhydroquinone with CuMOF surface molecularly imprinted polyethyleneimine nanocatalytic probe","authors":"Qianmiao Chen, Yue Luo, Guiqing Wen, Aihui Liang, Zhiliang Jiang","doi":"10.1016/j.saa.2025.126014","DOIUrl":"10.1016/j.saa.2025.126014","url":null,"abstract":"<div><div>A new difunctional recognition and nanocatalytic probe of copper metal–organic framework surface molecularly imprinted polyethyleneimine (CuMOF@MIP) was prepared by microwave procedure, using <em>tert</em>-butylhydroquinone (TBHQ) as the template molecule, CuMOF as the nanosubstrate and polyethyleneimine (PEI) as the functional monomer. The experimental results demonstrate that the CuMOF@MIP nanoprobes exhibit strong catalysis of acrylic acid reduction of silver nitrate to produce silver nanoparticles (AgNP) with surface plasmon resonance Rayleigh scattering (RRS) effect at 330 nm. The new nanocatalytic amplification indicator reaction was studied by RRS and coupled with the recognition function to develop a catalytic analysis strategy. The RRS peak increased linearly with increasing TBHQ analysis. Thus, a new, simple, and sensitive RRS analytical platform was developed to determine TBHQs in cooking oil, with the relative standard deviations (RSDs) of 2.05–6.76 % and the recovery of 92.5–108 %.</div></div>","PeriodicalId":433,"journal":{"name":"Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy","volume":"335 ","pages":"Article 126014"},"PeriodicalIF":4.3,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143593605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}