Analytical Sciences最新文献

Artificial neural network in optimization of bioactive compound extraction: recent trends and performance comparison with response surface methodology. 人工神经网络在生物活性化合物提取优化中的应用：最新趋势及与响应面方法的性能比较。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-11-06 DOI: 10.1007/s44211-024-00681-w

Vigneshwaran Subramani, Vidisha Tomer, Gunji Balamurali, Paul Mansingh

{"title":"Artificial neural network in optimization of bioactive compound extraction: recent trends and performance comparison with response surface methodology.","authors":"Vigneshwaran Subramani, Vidisha Tomer, Gunji Balamurali, Paul Mansingh","doi":"10.1007/s44211-024-00681-w","DOIUrl":"https://doi.org/10.1007/s44211-024-00681-w","url":null,"abstract":"Plant products and its by-products are rich source of bioactive compounds like antioxidants, flavonoids, phenolics, pigments and phytochemicals. Bioactive compound's health-promoting properties are well studied. However, optimal extraction of bioactive compounds is a complex, labour- and time-intensive process. It is also highly sensitive to experimental variables. Predicting output variables can reduce the experimental work and has positive environmental impact. Various tools such as Response Surface Methodology (RSM), Mathematical modelling have been commonly used for optimization and predictive modelling of the extraction process. Although mathematical modelling and RSM are efficient, recent studies have used Artificial Neural Network (ANN) which is more efficient and accurate and can perform extensive predictions with high accuracy. The manuscript focuses on current trends of ANN application in optimizing the extraction of bioactive compounds. In this study, ANN and RSM have been compared in terms of their performances in optimizing and modelling the extraction of bioactive compounds from herbs, medicinal plants, fruit, vegetables, and their by-products. The findings from the literature indicate that efficiency of ANN was superior to RSM. Future researches can focus on use of ANN in industrial optimization experiments.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142581901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

pH monitoring in high ionic concentration environments: performance study of graphene-based sensors. 高离子浓度环境中的 pH 值监测：石墨烯基传感器的性能研究。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-11-02 DOI: 10.1007/s44211-024-00682-9

Xin Qi, Wei Jin, Cao Tang, Xue Xiao, Rui Li, Yanqing Ma, Lei Ma

引用次数: 0

Ionic liquid applications in analytical chemistry 离子液体在分析化学中的应用。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-10-28 DOI: 10.1007/s44211-024-00668-7

Kenta Fujii

引用次数: 0

Correction: Effect of the alkyl chain length of α,ω‑dichloroalkane on the Gibbs energy of transfer for functional groups. 更正：α,ω-二氯乙烷烷基链长度对官能团转移吉布斯能的影响。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-10-22 DOI: 10.1007/s44211-024-00669-6

Kohei Uematsu, Erina Tanaka, Takanari Tanaka, Hajime Katano

引用次数: 0

Construction of all-solid-state ion-selective sensors using electrolyte-containing polymers. 利用含电解质聚合物构建全固态离子选择性传感器。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-10-17 DOI: 10.1007/s44211-024-00678-5

Hiroki Ohashi, Keisei Sowa, Yuki Kitazumi, Osamu Shirai

{"title":"Construction of all-solid-state ion-selective sensors using electrolyte-containing polymers.","authors":"Hiroki Ohashi, Keisei Sowa, Yuki Kitazumi, Osamu Shirai","doi":"10.1007/s44211-024-00678-5","DOIUrl":"https://doi.org/10.1007/s44211-024-00678-5","url":null,"abstract":"All-solid-state NO3-, K+, NH4+, Na+, and Ca2+ ion-selective sensors (ISEs) were prepared using polyvinyl butyral (S-LEC®K KX-5). In the present case, polyvinyl butyral was used as a porous material to keep the internal solution of the respective ISE. All sensors exhibited near-Nernst responses in the concentration region between approximately 10-5 and 0.1 mol dm-3. To avoid the influence of KCl as interfering ions, MgSO4 was used as an electrolyte within the salt bridge. Although the liquid junction potential was generated, the potential difference was stabilized within about few minutes. The NO3--ISE showed high stability with no potential drift during 12 h of continuous measurements and maintained high sensitivity even after 3 weeks of storage in ultrapure water. Solidification of the internal solution is expected to make the sensor smaller and increase its mechanical strength. As an actual measurement, the sodium concentration in plasma samples using the Na+-ISE was measured to confirm agreement with literature values.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Kinetic study on bimolecular photochemical quenching of tris(2,2'-bipyridyl)ruthenium(II) complex in water-ethylene glycol binary media. 水-乙二醇二元介质中三(2,2'-联吡啶)钌(II)复合物双分子光化学淬灭的动力学研究。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-10-17 DOI: 10.1007/s44211-024-00680-x

Yuki Hamano, Takuhiro Otsuka, Takeshi Higashiguchi, Nobuo Uehara, Arinori Inagawa

引用次数: 0

Aptasensor based on cascaded fluorescent sensor assisted by exonuclease III for ultra-sensitive detection of Hg². 基于外切酶 III 辅助级联荧光传感器的光传感器，用于超灵敏检测 Hg2。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-10-11 DOI: 10.1007/s44211-024-00677-6

Xing Liu, Zhen Liu, Yiliang Pan, Xilin Xiao

引用次数: 0

Characteristic volatile product analysis of moldy cigar wrapper and filler using gas chromatography-ion mobility spectrometry. 利用气相色谱-离子迁移谱法对发霉的雪茄茄衣和茄心进行特征性挥发物分析。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-10-07 DOI: 10.1007/s44211-024-00676-7

Min Wei, Yongli Wang, Yujing Shan, Lin Rong, Ling Zhu, Min Guo, Yong Pan, Yinyu Xiang

引用次数: 0

Fabrication of natural enzyme-covered / amino-modified Pd-Pt bimetallic-doped zeolitic imidazolate framework for ultrasensitive detection of metabolites. 用于代谢物超灵敏检测的天然酶覆盖/氨基修饰钯铂双金属掺杂唑咪唑框架的制备。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-10-03 DOI: 10.1007/s44211-024-00670-z

Chen-Chen Bai, Jin-Ye Lang, Xin-Yu Wang, Jia-Meng Zhao, Lin-Yi Dong, Jun-Jie Liu, Xian-Hua Wang

{"title":"Fabrication of natural enzyme-covered / amino-modified Pd-Pt bimetallic-doped zeolitic imidazolate framework for ultrasensitive detection of metabolites.","authors":"Chen-Chen Bai, Jin-Ye Lang, Xin-Yu Wang, Jia-Meng Zhao, Lin-Yi Dong, Jun-Jie Liu, Xian-Hua Wang","doi":"10.1007/s44211-024-00670-z","DOIUrl":"https://doi.org/10.1007/s44211-024-00670-z","url":null,"abstract":"The present article introduced an natural enzyme-covered/amino-modified Pd-Pt bimetallic-doped zeolitic imidazolate framework (NAPPZ) for ultrasensitive and specific detection of glucose. The dodecahedral nanomaterial zeolitic imidazolate framework (ZIF-8)-loaded Pd-Pt bimetallic nanoparticles endowed the composite with peroxidase-like activity. The modification with glucose oxidase (GOx) facilitated the rapid access of H2O2 produced through glucose oxidation to the Pd-Pt nanoparticles vicinity reducing diffusion. GOx specifically catalyzes the transformation of glucose into H2O2, which then H2O2 rapidly migrates to the Pd-Pt nanoparticles, catalyzing the oxidation of colorless o-phenylenediamine into the orange-yellow product 2,3-diaminophenazine. Based on the aforementioned cascade reaction, the NAPPZ and NAPPZ based on ChOx were utilized for detecting glucose in human urine samples and cholesterol in milk, respectively. The NAPPZ strategy presented a broad detection range (20-1100 μmol L-1) and a low detection limit (15.9 μmol L-1) for glucose, and the NAPPZ based on ChOx strategy approach offered a broad detection range (10-500 μmol L-1) and low detection limit (6.4 μmol L-1) for cholesterol. Therefore, this novel method holds significant potential in the areas of clinical diagnostics and food safety.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142370781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Dynamic extraction of residual solvents from pharmaceutical formulations using a needle-type extraction device. 使用针式萃取装置动态萃取药物制剂中的残留溶剂。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2024-09-28 DOI: 10.1007/s44211-024-00674-9

Ikuo Ueta, Daisuke Kondo, Suguru Masuda, Yuki Ariizumi, Ryosuke Kikuchi, Koki Nakagami, Yoshihiro Saito

{"title":"Dynamic extraction of residual solvents from pharmaceutical formulations using a needle-type extraction device.","authors":"Ikuo Ueta, Daisuke Kondo, Suguru Masuda, Yuki Ariizumi, Ryosuke Kikuchi, Koki Nakagami, Yoshihiro Saito","doi":"10.1007/s44211-024-00674-9","DOIUrl":"https://doi.org/10.1007/s44211-024-00674-9","url":null,"abstract":"This study developed a rapid screening method to determine residual solvents contained in a tablet formulation using a needle-type extraction device. For this, the tablet formulation was pulverized and the powdered sample was rapidly inserted into a pipette tip. After fixing the sample with quartz wool, the pipette tip was capped with a silicon septum. A needle-type extraction device packed with Carbopack X and a carbon molecular sieve was inserted into the pipette tip through the septum, and the gas sample was collected. During this gas sampling, pure N2 gas was introduced into the pipette tip. The extraction time for collecting 100 mL of the sample was approximately 10 min. After gas sampling, the extraction needle was connected to a gas-tight syringe and 0.5 mL of pure N2 gas (desorption gas) was collected. The extraction needle was then inserted into a heated gas chromatographic injection port. The extracted residual solvents were then thermally desorbed and determined using a gas chromatograph-flame ionization detector. The detector response is very low for carbon tetrachloride, although the proposed method showed sufficient sensitivity for five Class 1 compounds. Additionally, this study clearly indicated that the purge efficiency of residual solves with dynamic extraction is different between powdered pharmaceutical formulations.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142339514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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