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Can a ramped high-temperature carbon analyser with thermal oxidation be used to quantify soil organic carbon pools? 热氧化斜坡式高温碳分析仪能否用于土壤有机碳库的定量分析?
IF 6.1 1区 化学
Talanta Pub Date : 2025-12-01 Epub Date: 2025-05-22 DOI: 10.1016/j.talanta.2025.128358
Manoharan Veeragathipillai, Leslie Janik, Jeffrey Baldock
{"title":"Can a ramped high-temperature carbon analyser with thermal oxidation be used to quantify soil organic carbon pools?","authors":"Manoharan Veeragathipillai, Leslie Janik, Jeffrey Baldock","doi":"10.1016/j.talanta.2025.128358","DOIUrl":"10.1016/j.talanta.2025.128358","url":null,"abstract":"<p><p>Soil organic carbon (SOC) pools range from easily decomposable particulate, slowly decomposable humic, and resistant organic carbon. These carbon pools, sometimes referred to as POC, HOC and ROC, respectively, can be used as inputs into carbon accounting applications such as the Roth-C model. This study examines whether ramped thermal oxidation, combined with evolved gas (CO<sub>2</sub>) analysis (RTO-EGA) of soil samples at temperature intervals between 110 °C and 1000 °C, can quantify the allocation of SOC to these pools. RTO-EGA ramping profiles of 176 samples were combined with respective soil carbon pool data obtained from physical fractionation and <sup>13</sup>C NMR analysis, into multiple linear regression (MLR) and partial least squares regression (PLSR) models. The samples were split into calibration (110) and validation (51) sets for modelling, and 15 samples omitted due to excessively low decomposition temperatures and associated high model leverage. The samples were also modelled by PLSR using mid-infrared diffuse reflectance (DRIFT) for comparison with RTO-EGA. RTO-EGA and DRIFT calibration and validation accuracies were generally high for POC and HOC, with R<sup>2</sup> values of 0.80-0.95 and RMSE values of 0.10-0.20 %C. Estimates of the ROC pool were relatively less accurate for samples not adequately covered by the calibration set. Since high-temperature carbon analysers are routinely used in most soil testing laboratories, the RTO-EGA approach can be easily adopted for carbon pool analysis. This proof-of-concept study demonstrated that the RTO-EGA method, combined with chemometric modelling, as a rapid and cost-effective method to quantify carbon pools.</p>","PeriodicalId":435,"journal":{"name":"Talanta","volume":"295 ","pages":"128358"},"PeriodicalIF":6.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144191342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Smartphone-enabled detection of urea in animal feed based on a disposable electrode modified with silver nanoparticles decorated on nitrogen-doped graphene nanoplatelets. 基于氮掺杂石墨烯纳米片修饰银纳米粒子修饰的一次性电极,智能手机检测动物饲料中的尿素。
IF 6.1 1区 化学
Talanta Pub Date : 2025-12-01 Epub Date: 2025-06-04 DOI: 10.1016/j.talanta.2025.128431
Kiattisak Promsuwan, Chanakarn Sanguarnsak, Ananya Kongsuwan, Jenjira Saichanapan, Asamee Soleh, Kasrin Saisahas, Kritsada Samoson, Sangay Wangchuk, Warakorn Limbut
{"title":"Smartphone-enabled detection of urea in animal feed based on a disposable electrode modified with silver nanoparticles decorated on nitrogen-doped graphene nanoplatelets.","authors":"Kiattisak Promsuwan, Chanakarn Sanguarnsak, Ananya Kongsuwan, Jenjira Saichanapan, Asamee Soleh, Kasrin Saisahas, Kritsada Samoson, Sangay Wangchuk, Warakorn Limbut","doi":"10.1016/j.talanta.2025.128431","DOIUrl":"10.1016/j.talanta.2025.128431","url":null,"abstract":"<p><p>A flow injection amperometric sensing method was developed for the detection of urea in animal feed. A screen-printed electrode was modified with a nanocatalyst comprising silver nanoparticles anchored on nitrogen-doped graphene nanoplatelets. The nanocatalyst was synthesized via a two-step hydrothermal procedure and used to modify an electrode as a non-enzymatic electrochemical urea sensing platform. The morphology and structure of the as-synthesized nanocatalyst were investigated, and its electrochemical properties were characterized through electrochemical impedance spectroscopy, cyclic voltammetry, chronocuolometry, and chronoamperometry. The nanocatalyst exhibited good charge transfer ability and electrocatalytic activity for urea oxidation. The sensor fabrication and flow injection amperometric parameters were optimized. Under optimal conditions, the anodic current exhibited a linear correlation with urea concentration from 0.01 to 40 mM (0.6 to 2400 mg L<sup>-1</sup>) with a detection limit of 0.0036 mM (0.22 mg L<sup>-1</sup>). The developed system was highly sensitive (4.0 ± 0.3 μA mM<sup>-1</sup> cm<sup>-2</sup>), showed good repeatability (RSD of 1.4%, n = 10), reproducibility (RSD of 2.5%, n = 10), and operational stability (RSD of 1.01%, n = 100), with a throughput of 60 samples per hour. Furthermore, the proposed system showed resilience against potential interferences commonly found in animal feeds. A strong correlation coefficient between results obtained from the flow injection amperometric sensor and a standard spectrophotometric method underscored the accuracy of the proposed system, ensuring its suitability for urea detection in animal feedstuffs.</p>","PeriodicalId":435,"journal":{"name":"Talanta","volume":"295 ","pages":"128431"},"PeriodicalIF":6.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A simple and low-cost paper chip-based smartphone sensor for enumeration of T lymphocyte subsets. 一个简单和低成本的基于纸芯片的智能手机传感器枚举T淋巴细胞亚群。
IF 6.1 1区 化学
Talanta Pub Date : 2025-12-01 Epub Date: 2025-06-11 DOI: 10.1016/j.talanta.2025.128456
Wei Xiao, Fengjuan Xu, Cong Lin, Qian Zhao, Yuanyuan Han, Kunjie Lu, Yanqiong Su, Shibo Shang, Jiting Deng, Ke Gong, Xiaolin Fang, Liangshan Hu, Donglin Cao
{"title":"A simple and low-cost paper chip-based smartphone sensor for enumeration of T lymphocyte subsets.","authors":"Wei Xiao, Fengjuan Xu, Cong Lin, Qian Zhao, Yuanyuan Han, Kunjie Lu, Yanqiong Su, Shibo Shang, Jiting Deng, Ke Gong, Xiaolin Fang, Liangshan Hu, Donglin Cao","doi":"10.1016/j.talanta.2025.128456","DOIUrl":"10.1016/j.talanta.2025.128456","url":null,"abstract":"<p><p>Lymphocyte count reflects the cellular immune function status of the body, and T lymphocyte subsets are of great value in the adjuvant diagnosis, efficacy monitoring, and prognostic assessment of clinical diseases. There is an urgent need to develop a simple and economical cell-counting platform for T lymphocyte subsets to meet clinical needs of cancer prognosis. Based on the vertical flow assay (VFA) and a polystyrene (PS) microsphere-labeled antibody specifically binding to target cells, we established a simple T lymphocyte counting assay (PS-VFA). Labeled cells induced a signal, which was detected on the filter membrane. We used 3D printing to create a cell phone holder and a test kits. The cell phone holder eliminates ambient light interference and provides the appropriate focus, and a smartphone was used for image acquisition and data analysis, revealing the number of T lymphocytes to be tested via RGB signal analysis. The entire detection process takes about 15 min, and the detection device is extremely cheap, about $20, and can be reused. CD3, CD4, and CD8 cells count exhibited a quasilinear response to logarithmic cell concentrations in a single nucleated cell solution, and detection limits ranging from 100 to 1400 cells/μL for CD3(R<sup>2</sup> = 0.96), 100 to 1400 cells/μL for CD4(R<sup>2</sup> = 0.97), and 25 to 800 cells/μL for CD8(R<sup>2</sup> = 0.96), respectively. And the CV values of this method are all less than 10 %. To validate the clinical applicability of this method,16 patients with cancer and 34 healthy individuals samples were measured, the detection results showed a high correlation with the flow cytometry (FCM) analysis. These results revealed that PS-VFA showed good performance compared with flow cytometry and precision evaluation. This analysis approach is a promising alternative for the costly standard flow cytometry-based tools for T lymphocyte subsets in tumor patients in resource-limited settings.</p>","PeriodicalId":435,"journal":{"name":"Talanta","volume":"295 ","pages":"128456"},"PeriodicalIF":6.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144289365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to "Multichannel nerve conduit based on chitosan derivates for peripheral nerve regeneration and Schwann cell survival" [Carbohydrate Polymers 301 (2023) 120327]. “基于壳聚糖衍生物的多通道神经导管用于周围神经再生和雪旺细胞存活”[碳水化合物聚合物301(2023)120327]的更正。
IF 12.5 1区 化学
Carbohydrate Polymers Pub Date : 2025-11-01 Epub Date: 2025-07-29 DOI: 10.1016/j.carbpol.2025.123952
Zhiwen Jiang, Yijie Zhang, Yanting Wang, Shuo Wang, Jing Chang, Wanshun Liu, Baoqin Han
{"title":"Corrigendum to \"Multichannel nerve conduit based on chitosan derivates for peripheral nerve regeneration and Schwann cell survival\" [Carbohydrate Polymers 301 (2023) 120327].","authors":"Zhiwen Jiang, Yijie Zhang, Yanting Wang, Shuo Wang, Jing Chang, Wanshun Liu, Baoqin Han","doi":"10.1016/j.carbpol.2025.123952","DOIUrl":"https://doi.org/10.1016/j.carbpol.2025.123952","url":null,"abstract":"","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"367 ","pages":"123952"},"PeriodicalIF":12.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to "A versatile chitosan nanogel capable of generating AgNPs in-situ and long-acting slow-release of Ag+ for highly efficient antibacterial" [Carbohydr. Polym., 2021, 257, 117636]. “一种多功能壳聚糖纳米凝胶,能够原位生成AgNPs,长效缓释Ag+,用于高效抗菌”[碳水化合物]的勘误表。变异较大。[j].农业科学,2017,27(2):117636。
IF 12.5 1区 化学
Carbohydrate Polymers Pub Date : 2025-11-01 Epub Date: 2025-07-25 DOI: 10.1016/j.carbpol.2025.123950
Mengni Fan, Jingxing Si, Xiaogang Xu, Linfu Chen, Junpeng Chen, Chao Yang, Jingwu Zhu, Lihuang Wu, Jiang Tian, Xiaoyi Chen, Xiaozhou Mou, Xiaojun Cai
{"title":"Corrigendum to \"A versatile chitosan nanogel capable of generating AgNPs in-situ and long-acting slow-release of Ag<sup>+</sup> for highly efficient antibacterial\" [Carbohydr. Polym., 2021, 257, 117636].","authors":"Mengni Fan, Jingxing Si, Xiaogang Xu, Linfu Chen, Junpeng Chen, Chao Yang, Jingwu Zhu, Lihuang Wu, Jiang Tian, Xiaoyi Chen, Xiaozhou Mou, Xiaojun Cai","doi":"10.1016/j.carbpol.2025.123950","DOIUrl":"https://doi.org/10.1016/j.carbpol.2025.123950","url":null,"abstract":"","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"367 ","pages":"123950"},"PeriodicalIF":12.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to "Fabrication of Cu2+-loaded phase-transited lysozyme nanofilm on bacterial cellulose: Antibacterial, anti-inflammatory, and pro-angiogenesis for bacteria-infected wound healing" [Carbohydrate Polymers 309 (2023) 120681]. “在细菌纤维素上制备Cu2+负载的相转移溶菌酶纳米膜:细菌感染伤口愈合的抗菌、抗炎和促血管生成”[碳水化合物聚合物309(2023)120681]的更正。
IF 12.5 1区 化学
Carbohydrate Polymers Pub Date : 2025-11-01 Epub Date: 2025-07-28 DOI: 10.1016/j.carbpol.2025.123951
Wei He, Xiaodong Wang, Tian Hang, Jing Chen, Zhichao Wang, Dina A Mosselhy, Jin Xu, Shitao Wang, Yudong Zheng
{"title":"Corrigendum to \"Fabrication of Cu<sup>2+</sup>-loaded phase-transited lysozyme nanofilm on bacterial cellulose: Antibacterial, anti-inflammatory, and pro-angiogenesis for bacteria-infected wound healing\" [Carbohydrate Polymers 309 (2023) 120681].","authors":"Wei He, Xiaodong Wang, Tian Hang, Jing Chen, Zhichao Wang, Dina A Mosselhy, Jin Xu, Shitao Wang, Yudong Zheng","doi":"10.1016/j.carbpol.2025.123951","DOIUrl":"https://doi.org/10.1016/j.carbpol.2025.123951","url":null,"abstract":"","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"367 ","pages":"123951"},"PeriodicalIF":12.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to "Chitosan-poly(lactide-CO-glycolide)/poloxamer mixed micelles as a mucoadhesive thermo-responsive moxifloxacin eye drop to improve treatment efficacy in bacterial keratitis" [Carbohydrate Polymers 312 (2023) 120822]. “壳聚糖-聚(丙交酯- co -乙醇酸)/波洛沙姆混合胶束作为黏附热响应性莫西沙星滴眼液提高细菌性角膜炎治疗疗效”的更正[碳水化合物聚合物312(2023)120822]。
IF 12.5 1区 化学
Carbohydrate Polymers Pub Date : 2025-11-01 Epub Date: 2025-07-29 DOI: 10.1016/j.carbpol.2025.123953
Sanjay Ch, Sri Ganga Padaga, Balaram Ghosh, Sanhita Roy, Swati Biswas
{"title":"Corrigendum to \"Chitosan-poly(lactide-CO-glycolide)/poloxamer mixed micelles as a mucoadhesive thermo-responsive moxifloxacin eye drop to improve treatment efficacy in bacterial keratitis\" [Carbohydrate Polymers 312 (2023) 120822].","authors":"Sanjay Ch, Sri Ganga Padaga, Balaram Ghosh, Sanhita Roy, Swati Biswas","doi":"10.1016/j.carbpol.2025.123953","DOIUrl":"https://doi.org/10.1016/j.carbpol.2025.123953","url":null,"abstract":"","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"367 ","pages":"123953"},"PeriodicalIF":12.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Erratum to 'Simultaneous enantiomeric separation of linagliptin and clopidogrel by capillary electrophoresis for the individual, combined, and enantiomeric ecotoxicity evaluation on Pseudokirchneriella subcapitata' [Talanta (September 2025) 127992]. 毛细管电泳同时分离利格列汀和氯吡格雷对映体对亚capitata Pseudokirchneriella的单个、联合和对映体生态毒性评价[Talanta (September 2025) 127992]。
IF 5.6 1区 化学
Talanta Pub Date : 2025-11-01 Epub Date: 2025-05-16 DOI: 10.1016/j.talanta.2025.128204
Laura García-Cansino, Karina Boltes, María Luisa Marina, María Ángeles García
{"title":"Erratum to 'Simultaneous enantiomeric separation of linagliptin and clopidogrel by capillary electrophoresis for the individual, combined, and enantiomeric ecotoxicity evaluation on Pseudokirchneriella subcapitata' [Talanta (September 2025) 127992].","authors":"Laura García-Cansino, Karina Boltes, María Luisa Marina, María Ángeles García","doi":"10.1016/j.talanta.2025.128204","DOIUrl":"10.1016/j.talanta.2025.128204","url":null,"abstract":"","PeriodicalId":435,"journal":{"name":"Talanta","volume":" ","pages":"128204"},"PeriodicalIF":5.6,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to "Mechanically and functionally strengthened tissue adhesive of chitin whisker complexed chitosan/dextran derivatives based hydrogel" [Carbohydr. Polym. 237 (2020) 116138]. “几丁质须络合壳聚糖/葡聚糖衍生物基水凝胶的机械和功能强化组织粘合剂”的勘误[碳水化合物]。高分子学报,237(2020):116138。
IF 12.5 1区 化学
Carbohydrate Polymers Pub Date : 2025-10-15 Epub Date: 2025-06-18 DOI: 10.1016/j.carbpol.2025.123886
Jianhui Pang, Shichao Bi, Tiantian Kong, Xin Luo, Zhongzheng Zhou, Kaijin Qiu, Liang Huang, Xiguang Chen, Ming Kong
{"title":"Corrigendum to \"Mechanically and functionally strengthened tissue adhesive of chitin whisker complexed chitosan/dextran derivatives based hydrogel\" [Carbohydr. Polym. 237 (2020) 116138].","authors":"Jianhui Pang, Shichao Bi, Tiantian Kong, Xin Luo, Zhongzheng Zhou, Kaijin Qiu, Liang Huang, Xiguang Chen, Ming Kong","doi":"10.1016/j.carbpol.2025.123886","DOIUrl":"https://doi.org/10.1016/j.carbpol.2025.123886","url":null,"abstract":"","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"366 ","pages":"123886"},"PeriodicalIF":12.5,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to "Doxorubicin delivered by redox-responsive Hyaluronic Acid-Ibuprofen prodrug micelles for treatment of metastatic breast cancer" [Carbohydrate Polymers 245 (2020) 116527]. “透明质酸-布洛芬前药胶束递送多柔比星治疗转移性乳腺癌”[碳水化合物聚合物245(2020)116527]。
IF 12.5 1区 化学
Carbohydrate Polymers Pub Date : 2025-10-15 Epub Date: 2025-07-05 DOI: 10.1016/j.carbpol.2025.123941
Zhuodong Chai, Chao Teng, Lei Yang, Lianjie Ren, Zhongyue Yuan, Siyuan Xu, Manman Cheng, Yanmei Wang, Zhen Yan, Chao Qin, Xiaopeng Han, Lifang Yin
{"title":"Corrigendum to \"Doxorubicin delivered by redox-responsive Hyaluronic Acid-Ibuprofen prodrug micelles for treatment of metastatic breast cancer\" [Carbohydrate Polymers 245 (2020) 116527].","authors":"Zhuodong Chai, Chao Teng, Lei Yang, Lianjie Ren, Zhongyue Yuan, Siyuan Xu, Manman Cheng, Yanmei Wang, Zhen Yan, Chao Qin, Xiaopeng Han, Lifang Yin","doi":"10.1016/j.carbpol.2025.123941","DOIUrl":"https://doi.org/10.1016/j.carbpol.2025.123941","url":null,"abstract":"","PeriodicalId":261,"journal":{"name":"Carbohydrate Polymers","volume":"366 ","pages":"123941"},"PeriodicalIF":12.5,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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