Turkish Journal of Analytical Chemistry最新文献

Synthesis of axially di- and peripherally tetra-(4-{[(1E)-(4-methoxyphenyl)methylene]amino}phenoxy) group substituted metallophthalocyanines and their electrochemistry 轴向二元和外围四元（4-{[(1E)-(4-甲氧基苯基)亚甲基]氨基}苯氧基）基团取代的金属酞菁的合成及其电化学特性

Turkish Journal of Analytical Chemistry Pub Date : 2023-12-18 DOI: 10.51435/turkjac.1381022

Hüseyin Baş, Z. Bıyıklıoğlu

引用次数: 0

Geochemical evaluation of the genetic relationship of Kısacık (Ayvacık, Çanakkale/Türkiye) epithermal gold mineralization using trace and rare earth elements 利用痕量元素和稀土元素对 Kısacık（土耳其恰纳卡莱省 Ayvacık）热液型金矿成矿的遗传关系进行地球化学评估

Turkish Journal of Analytical Chemistry Pub Date : 2023-12-17 DOI: 10.51435/turkjac.1397465

A. Vural

{"title":"Geochemical evaluation of the genetic relationship of Kısacık (Ayvacık, Çanakkale/Türkiye) epithermal gold mineralization using trace and rare earth elements","authors":"A. Vural","doi":"10.51435/turkjac.1397465","DOIUrl":"https://doi.org/10.51435/turkjac.1397465","url":null,"abstract":"The Kısacık gold deposit is situated in the Biga Peninsula, Northwest Anatolia, Türkiye. The aim of this study is to investigate the genetic relationship between the Kısacık gold deposit and the surrounding rocks using trace element and rare earth element (REE) geochemistry. The results show that the gold mineralizations in the Kısacık area have a compatible pattern with the Alakeçi-Kısacık Volcanics and the Kuşçayırı plutonic rocks in the near vicinity of the area. The gold mineralizations in the Kısacık area are consistent with the trace and rare earth element (REE) patterns of the upper continental and lower continental crust, as shown by comparison with spider diagrams normalized to different geological settings. The gold enrichments in the listvenites and ultramafic rocks in the area are also consistent with the trace and REE element patterns of these rock types. The results of this study support the conclusion that the gold mineralization in the Kısacık area is related to hydrothermal fluids that leached elements from the Alakeçi-Kısacık Volcanics. In addition, hydrothermal fluids from plutonic rocks were also effective in the mineralization process. These results suggest that the gold mineralization in the Kısacık area is related to hydrothermal fluids that leached elements from the Alakeçi-Kısacık Volcanics.","PeriodicalId":274781,"journal":{"name":"Turkish Journal of Analytical Chemistry","volume":"361 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138966605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular docking study on acetylcholinesterase and urease enzyme inhibition effects of Amygdalin 乙酰胆碱酯酶和脲酶抑制作用的分子对接研究

Turkish Journal of Analytical Chemistry Pub Date : 2023-12-16 DOI: 10.51435/turkjac.1390923

Z. Can, Y. Kara, Halil İbrahim Güler, C. Birinci, S. Kolaylı

引用次数: 0

Electrochemical properties of non-peripherally and peripherally tetra-[(1-benzylpiperidine-4-yl)oxy] substituted phthalocyanines 非外周和外周四[(1-苄基哌啶-4-基)氧基]取代酞菁的电化学特性

Turkish Journal of Analytical Chemistry Pub Date : 2023-11-16 DOI: 10.51435/turkjac.1387506

A. Nas, Gülsev Di̇lber, Z. Bıyıklıoğlu

引用次数: 0

The effects of mechanical activation on corrosion resistance of cordierite ceramics 机械活化对堇青石陶瓷耐腐蚀性的影响

Turkish Journal of Analytical Chemistry Pub Date : 2023-11-06 DOI: 10.51435/turkjac.1333631

C. S. Keskin, Ceren AYNA ÇAKIR, Hüseyin Altundağ, Nil Toplan, H. Toplan

引用次数: 0

A green liquid chromatographic method using ethanol in mobile phase for the determination of nimesulide and naproxen in gel formulations 以乙醇为流动相测定凝胶制剂中尼美舒利和萘普生的绿色液相色谱法

Turkish Journal of Analytical Chemistry Pub Date : 2023-11-04 DOI: 10.51435/turkjac.1364599

Sercan Yıldırım

{"title":"A green liquid chromatographic method using ethanol in mobile phase for the determination of nimesulide and naproxen in gel formulations","authors":"Sercan Yıldırım","doi":"10.51435/turkjac.1364599","DOIUrl":"https://doi.org/10.51435/turkjac.1364599","url":null,"abstract":"Dеtеrmination of nonsteroidal anti-inflammatory drugs (NSAIDs) in pharmacеutical formulations hеlps to еnsurе that thеy arе manufacturеd to thе corrеct spеcifications. Consequently, simple, reliable, and environmentally friendly analytical methods are needed for the quality control of NSAID formulations. In this study, a novel and green liquid chromatographic method was developed for the determination of nimesulide (NIM) and naproxen (NAP) in gel formulations by employing ethanol as a green alternative to hazardous methanol and acetonitrile. The high viscosity of ethanol was compensated by employing a Chromolith HighResolution RP18e monolithic column (100 × 4.6 mm) with low flow resistance. Box-Behnken design with desirability function was employed for the optimization of selected significant parameters: pH (2.8-4), ethanol ratio in the mobile phase (35-55%), and flow rate (0.7-1.5 mL/min). Under optimum conditions, satisfactory separation of analytes was achieved within 5 min. Calibration curves for both analytes were linear between 1-50 μg/mL. Accuracies of intra- and inter-day experiments at low-, middle-, and high-quality control levels ranged from 99.0-101.5% with relative standard deviation values lower than 2.3%. The limits of detection were 0.27 and 0.62 µg/mL for NIM and NAP, respectively. The applicability of the method was demonstrated by analyzing gel formulations. The results of this study indicated that monolithic columns in combination with ethanol as a mobile phase component could be considered a desirable and green alternative for the routine analysis of NSAIDs in quality control laboratories.","PeriodicalId":274781,"journal":{"name":"Turkish Journal of Analytical Chemistry","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139289424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improvement of in vitro antimicrobial and antifungal activities of peppermint essential oil conjugated with chitosan and promising antiviral properties 壳聚糖结合薄荷精油体外抗菌和抗真菌活性的提高及其抗病毒性能的研究

Turkish Journal of Analytical Chemistry Pub Date : 2023-06-30 DOI: 10.51435/turkjac.1311200

P. Şen, P. Bolouri, F. Şahin

{"title":"Improvement of in vitro antimicrobial and antifungal activities of peppermint essential oil conjugated with chitosan and promising antiviral properties","authors":"P. Şen, P. Bolouri, F. Şahin","doi":"10.51435/turkjac.1311200","DOIUrl":"https://doi.org/10.51435/turkjac.1311200","url":null,"abstract":"The emergence of antimicrobial resistance has necessitate the new approaches. The peppermint (Mentha piperita L.) (PEO) oil is known for its antimicrobial and antifungal activities. However, the employing of it in practial applications is troublesome because of the sensitivity to the environmental conditions. Thus, it was immolized into chitosan to eliminate the difficulties in its use and increase its activity. It was observed that the immobilization of the PEO into the chitosan (PEO@Chitosan) influenced the biological activities resulting in less minimum Minimum Inhibitory Concentration (MIC) values in addition to protecting the essential oil by the chitosan as environment-friendly biomaterial. The determined MIC values of the target product (PEO@Chitosan) are between 0.001-0.95 mg/mL for the studied bacterial strains and 0.006-0.36 mg/mL for the studied fungi isolates, which led us to consider them as new therapeutic alternative. In vitro antiviral studies gave us that even if the encapsulation of the essential oil into the chitosan made the prepared product still promising as acandidate for the antiviral therapy treatment.","PeriodicalId":274781,"journal":{"name":"Turkish Journal of Analytical Chemistry","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123210236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The investigation of the effect of sodium chlorite and phosphonic acid catalysts on cotton bleaching process conditions 亚氯酸钠和膦酸催化剂对棉花漂白工艺条件影响的研究

Turkish Journal of Analytical Chemistry Pub Date : 2023-06-30 DOI: 10.51435/turkjac.1296586

S. Yıldız, Sami Dursun

{"title":"The investigation of the effect of sodium chlorite and phosphonic acid catalysts on cotton bleaching process conditions","authors":"S. Yıldız, Sami Dursun","doi":"10.51435/turkjac.1296586","DOIUrl":"https://doi.org/10.51435/turkjac.1296586","url":null,"abstract":"Today's environmental and living conditions necessitate reconsideration of traditional cotton fabric bleaching processes. For this reason, it is very important for the environment and the economy to obtain higher whiteness values by using less water and chemicals in bleaching. Sodium chlorite (NaClO2), the source of chlorine dioxide (ClO2) as the most important disinfectant, which gained popularity and availability during the COVID-19 pandemic, is an appropriate oxidant for the purpose. Using NaClO2 as bleaching agent has significant advantages, such as reducing the amount of washing proses and increasing of cotton strength. Another advantage of this reagent is that it causes less fabric weight loss than other reagents. Therefore, the present work was intended to improve the process conditions (different temperatures, concentrations, and times) of bleaching of cotton fabric by using NaClO2. Optimum temperature and time were determined as 30 min at 65 °C and 30 min at 85 °C, and a high whiteness index (W.I.=88) was obtained by using phosphonic acid (HEDP). Moreover, the tensile strength, weight loss and morphologies of the samples were examined. It has been observed that sodium chlorite causes little damage to cotton fibers and requires less water for rinsing since it does not form alkaline residues.","PeriodicalId":274781,"journal":{"name":"Turkish Journal of Analytical Chemistry","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127756073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A “Turn off” fluorescence sensor for Fe2+, Fe3+, and Cu2+ ions based on novel pyrene-functionalized chitosan 基于新型芘功能化壳聚糖的Fe2+， Fe3+和Cu2+离子的“关闭”荧光传感器

Turkish Journal of Analytical Chemistry Pub Date : 2023-06-30 DOI: 10.51435/turkjac.1302873

İpek Ömeroğlu, Vildan Sanko

引用次数: 0

Assessment of some element content and potential health risks in infant formulas available in Turkish markets 对土耳其市场上出售的婴儿配方奶粉中某些元素含量和潜在健康风险的评估

Turkish Journal of Analytical Chemistry Pub Date : 2023-06-30 DOI: 10.51435/turkjac.1294052

Kübra Öztürk, Çiğdem ER ÇALIŞKAN, Zehra Akinci, Harun Çiftçi

{"title":"Assessment of some element content and potential health risks in infant formulas available in Turkish markets","authors":"Kübra Öztürk, Çiğdem ER ÇALIŞKAN, Zehra Akinci, Harun Çiftçi","doi":"10.51435/turkjac.1294052","DOIUrl":"https://doi.org/10.51435/turkjac.1294052","url":null,"abstract":"Accurately determining the composition of essential and toxic elements in commercial infant formulas is critical to ensuring safe nutrition for infants. In this study, the concentrations of essential and toxic elements (Pb, Ni, Cd, Al, Cr, Cu, Fe, Mn, Zn, Co) in infant formulas were determined using high-resolution continuum-source flame atomic absorption spectrometry (HR-CS FAAS) and have been evaluated for health risk. The measured values for concentrations from lowest to highest were (in mg/kg): 36.38–77.45 (Zn), 6.28–12.88 (Al), 2.37–4.91 (Cu), 22.01–51.64 (Fe), and 0.55–2.06 (Mn). The highest concentrations of Ni and Cd were 0.18 and 0.09 mg/kg, respectively, while the lowest concentrations for these metals were below the detection limit. The Cr, Co and Pb levels were below the detection limits in all samples. According to the risk assessment conducted for infants aged 0–24 months, which involved calculating the estimated daily intake (EDI), the estimated weekly intake (EWI), the target hazard quotient (THQ), and the hazard index (HI), it was found that the THQ values range from 0.00 to 0.06 for Ni, from 0.00 to 0.69 for Cd, and from 0.17 to 0.22 for Al. However, since the HI for all age groups is less than 1, it can be concluded that there is no health concern for the elements Ni, Cr, Cd, Pb, Al, and Co.","PeriodicalId":274781,"journal":{"name":"Turkish Journal of Analytical Chemistry","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114704921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0