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- Volume 15, Issue 6, 2019
Current Analytical Chemistry - Volume 15, Issue 6, 2019
Volume 15, Issue 6, 2019
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Supramolecular Solvent Based Liquid-Liquid Microextraction for Preconcentration of Selected Fluoroquinolone Antibiotics in Environmental Water Sample Prior to High Performance Liquid Chromatographic Determination
Authors: Shirley K. Selahle and Philiswa N. NomngongoBackground and Objectives: A rapid, simple and environmental friendly supramolecular solvent (SUPRAS) based liquid-liquid microextraction method for preconcentration of ciprofloxacin (CIPRO), danofloxacin (DANO) and enrofloxacin (ENRO) from wastewater was developed. Methods: This microextraction technique was coupled with high-performance liquid chromatography equipped with a diode array detector (HPLC- Read More
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Green Silver Nanoparticles Confined in Monolithic Silica Disk-packed Spin Column for Human Serum Albumin Preconcentration
More LessBackground: In recent times many new uses have been found for nanomaterials that have undergone homogenous immobilization within porous supports. For this paper, immobilization of SNPs on a thiol-functionalized silica monolith using a fast, easy, environmentally friendly and costeffective process was performed. This was achieved by modifying the surface of a silica-based monolith using thiol groups, and then Read More
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Graphene Modified Molecular Imprinting Electrochemical Sensor for Determining the Content of Dopamine
Authors: Rong Liu, Jie Li, Tongsheng Zhong and Liping LongBackground: The unnatural levels of dopamine (DA) result in serious neurological disorders such as Parkinson’s disease. Electrochemical methods which have the obvious advantages of simple operation and low-cost instrumentation were widely used for determination of DA. In order to improve the measurement performance of the electrochemical sensor, molecular imprinting technique and graphene have always been Read More
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A Green Liquid Chromatographic Method For The Simultaneous Determination of Chlorpheniramine Maleate, Pseudoephedrine Hydrochloride and Propyphenazone
Authors: Nadia M. Mostafa, Ghada M. Elsayed, Nagiba Y. Hassan and Dina A. El MouslyBackground: The concept of green analytical chemistry prevails due to the growing environmental pollution. Objective: Our attempts are to develop simple and eco-friendly method which is non-harmful to the environment by producing minimal waste. In this context, a green liquid chromatographic method was applied for the simultaneous determination of chlorpheniramine maleate, pseudoephedrine hydrochlorid Read More
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Tagging Fatty Acids Via Choline Coupling for the Detection of Carboxylic Acid Metabolites in Biological Samples
Authors: Murad N. Abualhasan and David G. WatsonBackground: Fatty acids and other metabolites containing a carboxyl group are of high interest in biomedicine because of their major role in many metabolic pathways and, particularly in the case of oxidised fatty acids, their high biological activity. Tagging carboxylic acid compounds with a permanent positive charge such as a quaternary ammonium compound could increase the LC-MS detection sensitivity and selectivity. T Read More
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Highly Sensitive Chitosan and ZrO2 Nanoparticles-Based Electrochemical Sensor for 8-Hydroxy-2’-deoxyguanosine Determination
Authors: Shengzhong Rong, Deng Pan, Xuehui Li, Mucong Gao, Hongwei Yu, Jinghui Jiang, Ze Zhang, Dongdong Zeng, Hongzhi Pan and Dong ChangBackground: 8-Hydroxy-2’-deoxyguanosine (8-OHdG) has been regarded as a typical stable biomarker of DNA oxidative damage, and its level is one of the criteria for early diagnosis of various diseases. Considering the significance of 8-OhdG, various analytical techniques have been used for assaying 8-OHdG but all of them suffer from basic limitations like highly expensive instrumentation, large amount of sample requiremen Read More
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Detection Method of Environmentally Friendly Non-POP PBDEs by Derivatization-Enhanced Raman Spectroscopy Using the Pharmacophore Model
Authors: Shujing Zhang, Youli Qiu and Yu LiBackground: Polybrominated diphenyl ethers (PBDEs) are dangerous for the environment and human health because of their persistent organic pollutant (POP) characteristics, which have attracted extensive research attention. Raman spectroscopy is a simple highly sensitive detection operation. This study was performed to obtain environmentally friendly non-POP PBDE derivatives with simple detection-based molecula Read More
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Melamine Detection in Food matrices employing Chicken Antibody (IgY): A Comparison between Colorimetric and Chemiluminescent Methods
Authors: Umesh Sushma, Alok K. Srivastava and Manonmani H. KrishnanBackground: Melamine, contains 67% nitrogen by mass, and is adulterated in foods to uplift false protein. There is an urgent requirement to develop fast screening techniques for monitoring melamine in foods. Objectives: To develop rapid, high throughput detection techniques for melamine in the food matrix. Methods: IgY antibodies were developed against melamine in the hen, isolated and used for detection of Read More
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Simultaneous Monitoring of Febuxostat and Uric Acid in Human Serum Samples Using the Direct Square-Wave Voltammetric Method
Authors: Biljana Nigoviç and Jakov VlakBackground: High uric acid serum level, hyperuricemia, is now associated with many diseases such as gout, chronic kidney disease, hypertension, coronary artery disease and diabetes. Febuxostat is a novel selective xanthine oxidase inhibitor approved for the treatment of hyperuricemia. Objective: The aim of this study was to develop a first analytical method for the simultaneous determination of febuxostat and uric acid. Read More
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A New Multiple-Dilution-Assays Method for Determining Glucose Yield from Enzymatic Saccharification of Biomass at High-Solids Loadings
Authors: Han Zhang, Hao Liu, Jianliang Sun, Mingqian Mai, Shiyu Fu and Xiangyang XuBackground: Determination of the accurate mass of glucose generated from high-solids biomass saccharification is vital but problematic due to the uncertainty of liquid volume and slurry density. Methods: Herein, a new multiple-dilution-assays method was established to deduce the accurate glucose mass from the hydrolyzing biomass slurry. Results: This method was applicable for slurries of pretreated corn stover with a solid Read More
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Quantification of Alpha Lipoic Acid in Pharmaceutical Products by HPLC with Pulsed Amperometric Detection at a Gold Electrode
Background: Alpha-lipoic acid (ALA) has become a common ingredient in food supplements and multivitamin formulas. ALA is widely used as therapy for preventing diabetic polyneuropathies, scavenges free radicals, and restores intracellular glutathione levels. This study aimed to develop a simple and fast analytical method to determine ALA content in dietary supplements using highperformance liquid chromatography wit Read More
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Volumes & issues
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Volume 21 (2025)
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Volume 20 (2024)
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Volume 19 (2023)
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Volume 18 (2022)
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Volume 17 (2021)
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Volume 16 (2020)
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Volume 15 (2019)
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Volume 14 (2018)
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Volume 13 (2017)
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Volume 12 (2016)
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Volume 11 (2015)
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Volume 10 (2014)
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Volume 9 (2013)
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Volume 8 (2012)
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Volume 7 (2011)
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Volume 6 (2010)
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Volume 5 (2009)
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Volume 4 (2008)
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Volume 3 (2007)
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Volume 2 (2006)
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Volume 1 (2005)
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