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High performance liquid chromatographic analysis of lercanidipine in human breast milk 人母乳中雷卡尼地平的高效液相色谱分析
IF 1.3
Journal of Chemical Metrology Pub Date : 2019-06-23 DOI: 10.25135/JCM.23.19.03.1223
Evrim Kepekci Tekkeli, I. Gazioğlu, Gizem Tırıs, C. Önal
{"title":"High performance liquid chromatographic analysis of lercanidipine in human breast milk","authors":"Evrim Kepekci Tekkeli, I. Gazioğlu, Gizem Tırıs, C. Önal","doi":"10.25135/JCM.23.19.03.1223","DOIUrl":"https://doi.org/10.25135/JCM.23.19.03.1223","url":null,"abstract":"A simple, rapid, precise and accurate isocratic reversed phase HPLC method was developed and validated for the determination of lercanidipine hydrochloride in pharmaceutical tablets and spiked human breast milk. The chromatographic separation was achieved on C18 (250×4.6 mm×5μm) column using a mobile phase consisting of acetonitrile and phospate buffer (pH=4) (55:45, v/v) at a flow rate of 1.1 mL/min and UV detection at 237 nm. The linearity of the proposed method was investigated in the range of 1.0-40 μg/mL (r=0.9990). The method was validated in terms of accuracy, precision, reproducibility, specificity, robustness, and detection and quantification limits, in accordance with ICH guidelines. The proposed method is found as suitable for routine quantification of lercanidipine in human breast milk.","PeriodicalId":15343,"journal":{"name":"Journal of Chemical Metrology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2019-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48987575","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
Use of ion chromatography method on the determination of some anions in the water collected from Sakarya, Turkey 离子色谱法测定土耳其萨卡里亚水中某些阴离子
IF 1.3
Journal of Chemical Metrology Pub Date : 2019-06-23 DOI: 10.25135/JCM.26.19.03.1221
H. Altundağ, S. Agar, Esra Altintig, A. Ateş, Sezen Sivrikaya
{"title":"Use of ion chromatography method on the determination of some anions in the water collected from Sakarya, Turkey","authors":"H. Altundağ, S. Agar, Esra Altintig, A. Ateş, Sezen Sivrikaya","doi":"10.25135/JCM.26.19.03.1221","DOIUrl":"https://doi.org/10.25135/JCM.26.19.03.1221","url":null,"abstract":"In this study simultaneous analysis of seven different anions (Fluoride, Chloride, Bromide, Nitrite, Nitrate, Phosphate, and Sulfate) in13 different water samples collected from Sakarya/Turkey and it was conducted with ion chromatography method. Analyzes were performed simultaneously using the ion chromatography method. Some validation tests and the optimum conditions for the determination of anions were studied. The analysis of anions was accomplished by the dilution of the sample injection device. Samples were used to adjust the terms of the device and the results were recorded. Ion chromatography (IC) is now considered as an excellent technique for the analysis of ions in many samples.","PeriodicalId":15343,"journal":{"name":"Journal of Chemical Metrology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2019-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46027443","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: 3
Determination of Boron in hazelnut varieties with the addition of sorbitol by using ICP-OES and ultrasonic nebulization after microwave digestion system 微波消解-超声雾化-电感耦合等离子体发射光谱法测定榛子中硼
IF 1.3
Journal of Chemical Metrology Pub Date : 2018-12-22 DOI: 10.25135/JCM.20.18.11.1076
M. S. Dundar, H. Altundağ, Gülşah Tunca
{"title":"Determination of Boron in hazelnut varieties with the addition of sorbitol by using ICP-OES and ultrasonic nebulization after microwave digestion system","authors":"M. S. Dundar, H. Altundağ, Gülşah Tunca","doi":"10.25135/JCM.20.18.11.1076","DOIUrl":"https://doi.org/10.25135/JCM.20.18.11.1076","url":null,"abstract":"Boron is an essential nutrient for plants and an essential element for many organisms, but can be toxic to aquatic and terrestrial organisms above certain concentrations. The aim of this research is determining the Boron content of four varieties of Hazelnut (Corylus avellana L.) from Sakarya. Inductively coupled plasma optical emission spectrometry (ICP-OES) with ultrasonic nebulization (USN) was used for the determination of Boron contents. This method is based on microwave digestion system and reduced memory effect of Boron by using sorbitol. Different conditions were optimized for this method. Four hazelnut varieties, eight soil samples and certificated reference material (NIM-GBW10012) were analyzed. The Boron contents were found as 18.27, 28.3, 38.6, 17.6 mg/kg in Kara, Sivri, Delisava and Tombul hazelnut varieties, respectively. And Boron contents of soil samples were between 30.44 to 196.79 mg/kg. The results revealed that the Turkish hazelnut is a good natural source of Boron.","PeriodicalId":15343,"journal":{"name":"Journal of Chemical Metrology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47935458","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: 2
Effect of priming on thymoquinone content and in vitro plant regeneration with tissue culture of black cumin (Nigella sativa L.) seeds 引发剂对黑孜然种子胸腺醌含量及离体植株再生的影响
IF 1.3
Journal of Chemical Metrology Pub Date : 2018-12-22 DOI: 10.25135/jcm.18.18.09.950
F. Rezai, S. Isik, M. Kartal, S. Erdem
{"title":"Effect of priming on thymoquinone content and in vitro plant regeneration with tissue culture of black cumin (Nigella sativa L.) seeds","authors":"F. Rezai, S. Isik, M. Kartal, S. Erdem","doi":"10.25135/jcm.18.18.09.950","DOIUrl":"https://doi.org/10.25135/jcm.18.18.09.950","url":null,"abstract":"The aim of this study is to analyze the changes on thymoquinone content, which is the major constituent of black cumin (Nigella sativa L.) seeds, by using priming methods. For the priming studies, seeds placed in distilled water (18 20 hours), PEG (Polyethylene glycol 10%, 20%) and mannitol (4% and 6%) for 20 hours and subsequently dried for 24 hours on blotting paper at room temperature (24 C ± 1 C). The best priming results were obtained in the 4% of mannitol treatment. Control (not primed) Nigella seeds and 4% of mannitol primed seeds were planted in both greenhouse and farm conditions. Seed extracts were analyzed with HPLC to compare the amount of thymoquinone. The results reveal that seed priming with 4% of mannitol increases the amount of thymoquinone in Nigella sativa. In addition, the effects of plant growth hormones on callus regeneration of these primed seeds were investigated herein.","PeriodicalId":15343,"journal":{"name":"Journal of Chemical Metrology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43909964","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: 4
Distribution of some major and trace elements in the lower Sakarya River by using ICP-MS 应用ICP-MS测定萨卡里亚河下游部分主、微量元素的分布
IF 1.3
Journal of Chemical Metrology Pub Date : 2018-12-22 DOI: 10.25135/jcm.22.18.11.1073
M. S. Dundar, H. Altundağ
{"title":"Distribution of some major and trace elements in the lower Sakarya River by using ICP-MS","authors":"M. S. Dundar, H. Altundağ","doi":"10.25135/jcm.22.18.11.1073","DOIUrl":"https://doi.org/10.25135/jcm.22.18.11.1073","url":null,"abstract":"","PeriodicalId":15343,"journal":{"name":"Journal of Chemical Metrology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49399625","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: 5
Quantitative determination of some phenolics in Origanum laevigatum Boiss. extracts via validated LC-MS/MS metod and antioxidant activity 杜鹃花中某些酚类物质的定量测定。经验证的LC-MS/MS法测定提取物的抗氧化活性
IF 1.3
Journal of Chemical Metrology Pub Date : 2018-12-22 DOI: 10.25135/JCM.21.18.11.1115
S. Carikci, T. Kilic, Züleyha Özer, T. Dirmenci, T. Arabaci, A. Gören
{"title":"Quantitative determination of some phenolics in Origanum laevigatum Boiss. extracts via validated LC-MS/MS metod and antioxidant activity","authors":"S. Carikci, T. Kilic, Züleyha Özer, T. Dirmenci, T. Arabaci, A. Gören","doi":"10.25135/JCM.21.18.11.1115","DOIUrl":"https://doi.org/10.25135/JCM.21.18.11.1115","url":null,"abstract":"In this study, quantities of some phenolics; caffeic acid, (E)-ferulic acid, rosmarinic acid, chlorogenic acid, fumaric acid, gallic acid, pyrogallol and vanillin in the directly methanol (M1), chloroform (C), acetone (Ac) and methanol (M2) extratcs obtained from Origanum laevigatum Boiss. from Turkey were investigated via liquid chromatography and tandem mass spectrometry (LC-MS/MS). Curcumin was used as an internal standard. Caffeic acid, chlorogenic acid, rosmarinic acid and gallic acid were determined as the most abundant phenolic acids in the studied extracts using LC-MS/MS. In LC-MS/MS measurements relative standard deviations (RSD %) for caffeic acid, (E)-ferulic acid, rosmarinic acid, chlorogenic acid, fumaric acid, gallic acid, pyrogallol and vanillin were found to be 8.04, 5.21, 5.45, 3.73, 5.44, 4.85, 5.47 and 6.57 % respectively. For the investigated analytes, the correlation coefficient was found in the range of 0.9803 to 0.9981. Furthermore, antioxidant properties of the extracts were determined based on 2,2-diphenyl-1picrylhydrazyl (DPPH), β-carotene linoleic acid and cupric (Cu2) ion reducing power assay (CUPRAC). Acetone (Ac) and methanol (M2) extracts showed high activity in all test assays due to their high concentration of rosmarinic acid, caffeic acid and gallic acid in the extracts.","PeriodicalId":15343,"journal":{"name":"Journal of Chemical Metrology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47631175","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: 9
Validation of ultrasonic extraction method for the quantification of phthalates in poly (vinyl chloride) and polypropylene matrices at low concentrations by gas-chromatography time of flight mass spectrometry (GC-TOFMS) 用气相色谱-飞行时间质谱法（GC-TOFMS）对低浓度聚氯乙烯和聚丙烯基质中邻苯二甲酸酯的超声提取方法进行验证
IF 1.3
Journal of Chemical Metrology Pub Date : 2018-12-22 DOI: 10.25135/JCM.18.12.1094
N. Nhlapo, D. Prevoo-Franzsen, Maria Fernades Whaley
{"title":"Validation of ultrasonic extraction method for the quantification of phthalates in poly (vinyl chloride) and polypropylene matrices at low concentrations by gas-chromatography time of flight mass spectrometry (GC-TOFMS)","authors":"N. Nhlapo, D. Prevoo-Franzsen, Maria Fernades Whaley","doi":"10.25135/JCM.18.12.1094","DOIUrl":"https://doi.org/10.25135/JCM.18.12.1094","url":null,"abstract":"","PeriodicalId":15343,"journal":{"name":"Journal of Chemical Metrology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45047071","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: 3
The Consultative Committee for Metrology in Chemistry and Biology – CCQM 化学及生物计量谘询委员会(CCQM
IF 1.3
Journal of Chemical Metrology Pub Date : 2018-06-06 DOI: 10.25135/JCM.11.17.12.060
R. Kaarls
{"title":"The Consultative Committee for Metrology in Chemistry and Biology – CCQM","authors":"R. Kaarls","doi":"10.25135/JCM.11.17.12.060","DOIUrl":"https://doi.org/10.25135/JCM.11.17.12.060","url":null,"abstract":"Reliable, correct results of chemical measurements and analysis, with a measurement uncertainty statement fit for its purpose, are highly important for drawing the right conclusions and making the right decisions. Addressing the complex parameters influencing climate change, the consequences of unsafe food, the costly clinical diagnostics and the health effects of expensive pharmaceuticals, as well as addressing the need for new sustainable energy sources and fair trade, require accurate measurements. In 1993, by decision of the International Committee for Weights and Measures (CIPM), being the directive and supervisory body under the intergovernmental treaty, known as the “Metre Convention” and signed in 1875 with the aim of establishing and maintaining a global measurement system, the scientific Consultative Committee for Metrology in Chemistry and Biology (CCQM) was created. The CCQM is charged to establish global comparability of chemical and biological measurements and analysis through metrological traceability to the International System of Units, the SI, and very well defined pure reference materials and (primary) measurement methods and procedures. The article describes in short in which context the CCQM started and developed, how it is currently organized, what it has achieved and which priorities are being set in addressing the most important chemical and biological measurement issues in the near and medium term future.","PeriodicalId":15343,"journal":{"name":"Journal of Chemical Metrology","volume":"1 1","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42515532","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: 7
Study the effect of different dyeing conditions of extracted natural dye from leaves of neem on silk fabrics 研究了印楝叶提取天然染料不同染色条件对真丝织物的染色效果
IF 1.3
Journal of Chemical Metrology Pub Date : 2018-06-06 DOI: 10.25135/JCM.12.18.01.061
Nabawia A. r Abdel-Zahe, Manal T. H. Moselhey, O. W. Guirguis
{"title":"Study the effect of different dyeing conditions of extracted natural dye from leaves of neem on silk fabrics","authors":"Nabawia A. r Abdel-Zahe, Manal T. H. Moselhey, O. W. Guirguis","doi":"10.25135/JCM.12.18.01.061","DOIUrl":"https://doi.org/10.25135/JCM.12.18.01.061","url":null,"abstract":"The aim of the present work was to evaluate the effect of artificial day light for 160 h on silk fabrics dyeing with different conditions such as; different dye bath pH values, different dyeing temperatures, and different dyeing times; of extracted natural dye from Azadirachta indica (neem) leaves. The reflectance spectra of the untreated and treated silk fabrics were followed using spectrophotometer technique. The effects of dyeing conditions in the optical parameters, such as; CIE tristimulus values, color parameters, absorption coefficient as well as extinction coefficient and color strength, were determined before and after exposure. The obtained results indicate that the silk fabrics were found to be highly dependent on either of these different dyeing conditions and/or artificial day light exposure. Also, variations in the values of the optical band gap energy were detected. Improvement in the dyeing process were produced which may be attributed to the induced structural change due to the variation in the chemical bonds in silk fabrics. The present work gives the chance to produce a new traditional natural dye to meet the environmental future demands technology of high quality fantastic dyed pattern.","PeriodicalId":15343,"journal":{"name":"Journal of Chemical Metrology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42522136","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: 5
Comparative determination of ruscogenins content in Butcher’s Broom rhizome samples gathered from the populations grown in different soil conditions in the Marmara Region and attempts for pilot field cultivation of rhizomes 马尔马拉地区不同土壤条件下生长的布彻扫帚根状茎样品中ruscogens含量的比较测定和根状茎中试种植的尝试
IF 1.3
Journal of Chemical Metrology Pub Date : 2018-06-06 DOI: 10.25135/JCM.17.18.05.094
Gulcin H. Ozer, Etil Guzelmeric, Gozde Sezgin, Ercan Ozyurek, Avni Arslan, E. Sezik, E. Yeşilada
{"title":"Comparative determination of ruscogenins content in Butcher’s Broom rhizome samples gathered from the populations grown in different soil conditions in the Marmara Region and attempts for pilot field cultivation of rhizomes","authors":"Gulcin H. Ozer, Etil Guzelmeric, Gozde Sezgin, Ercan Ozyurek, Avni Arslan, E. Sezik, E. Yeşilada","doi":"10.25135/JCM.17.18.05.094","DOIUrl":"https://doi.org/10.25135/JCM.17.18.05.094","url":null,"abstract":"","PeriodicalId":15343,"journal":{"name":"Journal of Chemical Metrology","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2018-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44607554","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: 6
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