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Sphingosine and dihydrosphingosine as biomarkers for multiple sclerosis identified by metabolomic profiling using coupled UPLC-MS

Mon, 09/25/2017 - 07:35
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01922J, PaperSean Ward, Michael I Page, Patrick McHugh, Nicholas Trevor Powles
The project aim was to identify differences in the metabolomic profiles in the serum of patients with multiple sclerosis (MS), those with neuropathic pain (NP) and those with both MS...
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Impedimetric response study for the efficient detection of breast cancer specific biomarker CA 15-3 using tin oxide thin film based immunoelectrode

Mon, 09/25/2017 - 03:30
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01609C, PaperKashima A, Monika Tomar, Vinay Gupta
A novel and sensitive RF magnetron sputtered tin oxide (SnO2) thin film based breast cancer immunosensor that fuses the exquisite sensitivity, rapid determination and specificity with the simple, inexpensive and...
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Green analytical flow method for determination of total sulfite in wine using membraneless gas-liquid separation with contactless conductivity detection

Fri, 09/22/2017 - 10:30
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01879G, PaperDuangjai Nacapricha, Nattapong Chantipmanee, Waleed Alahmad, Thitaporn Sonsa-ard, Kanchana Uraisin, Nuanlaor Ratanawimarnwong, Thitirat Mantim
A green analytical flow method was developed for the determination of total sulfite preservative in white wine. The method employs membraneless vaporization (MBL-VP) technique for gas-sample separation allowing direct analysis...
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MicroRNA Detection of Amplification-Free Based on Controllable Solid-State Electrochemiluminescence Quenched by Charge Transfer

Fri, 09/22/2017 - 10:30
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01724C, PaperLiping Lu, Chang Liu, Tianfang Kang, Lin Wang
Abstract Effective and sensitive microRNA detection is a great challenge. Most of microRNA assays applied amplification strategy to obtain high sensitivity, which made them complicated. Herein, we present a simple...
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Headspace-gas chromatography-mass spectrometry for the rapid determination of possible biomarkers in urine samples

Fri, 09/22/2017 - 08:28
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01655G, PaperRosa Maria Gonzalez Paredes, Carmelo Garcia Pinto, Jose Luis Perez Pavon, Bernardo Moreno-Cordero
The development of rapid analytical strategies plays a vital role for the research, discovery and confirmation of analytes that can be sensitive biomarkers. Within this line of work, a method...
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Visual determination of ferric ions in aqueous solution based on a high selectivity and sensitivity ratiometric fluorescent nanosensor

Thu, 09/21/2017 - 21:21
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01917C, PaperHaolan Wu, Lian Yang, Linfeng Chen, Fang Xiang, Hongyu Gao
A novel ratiometric fluorescent nanosensor for visual sensing of Fe3+ has been developed by integrating yellow-emissive rhodamine derivatives (RhB) onto the surface of silica nanospheres embedded with red CdTe QDs....
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A deep eutectic solvent-based extraction method for fast determination of Hg in marine fish samples by cold vapor atomic absorption spectrometry

Thu, 09/21/2017 - 06:03
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01372H, PaperFarzaneh Rastegari fard, Kamal Ghanemi, Mehdi Fallah-Mehrjardi
An efficient sample extraction method for determination of total Hg in fish samples was developed. The method is based on the complete dissolution of samples in a deep eutectic solvent...
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Surface enhanced raman spectroscopy for detection of hydrogen cyanide in breath from children colonised with P. aeruginosa

Thu, 09/21/2017 - 06:03
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01693J, PaperRikke Kragh Lauridsen, Peter Skou, Tomas Rindzevicius, Kaiyu Wu, Soren Molin, Soren Balling Engelsen, Kim Gjerum Nielsen, Helle K Johansen, Anja Boisen
There is a need for a fast and non-invasive tool to detect Pseudomonas aeruginosa airway colonisation in cystic fibrosis (CF) patients unable to expectorate. Fifty CF children and 19 controls...
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A novel HPLC method for determination of zonisamide in human plasma using microextraction by packed sorbent optimised by experimental design

Thu, 09/21/2017 - 05:01
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01912B, PaperDina Lourenco, Mafalda Sarraguca, Alves Gilberto, Paula Coutinho, Andre RTS Araujo, Marcio Jose de Abreu Marques Rodrigues
A novel high-performance liquid chromatography-diode array detection method based on microextraction by packed sorbent (MEPS) as sample preparation approach is described for the determination of zonisamide (ZNS) in human plasma....
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Detection of chemical constituents in Gegenqinlian decoction by ultra high performance liquid chromatography coupled with Fourier transform ion cyclotron resonance mass spectrometry

Thu, 09/21/2017 - 05:01
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY02082A, PaperTing Liu, yue cui, xiumin tian, songhe li, fei han, Bin Ji, Yunli Zhao, zhiguo Yu
Gegenqinlian decoction (GQLD) is one of the classic traditional Chinese medicine. The formula consists of four herbal medicines including Radix Puerariae lobatae, Radix Scutellariae, Coptidis Rhizoma, and Glycyrrhizae Radix et...
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Electrochemical impedance spectroscopy of blood. Part 2: Numerical analysis of experimental dielectric spectra using the biconcave shape of human erythrocytes

Thu, 09/21/2017 - 05:01
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01692A, PaperAlexander Zhbanov, Sung Yang
Results reported in the companion paper (Zhbanov and Yang, Anal. Methods, 2017, 17, 3302) showed that the electrochemical impedance spectroscopy is a highly promising tool for the analysis of blood....
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Effect of organic solvents on the immunosensing assay of small molecules based on optofluidic immunosensing platform

Tue, 09/19/2017 - 12:28
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C6AY03373C, PaperXuening Lou, Anna Zhu, Qiang Luo, Yan Zhang, Feng Long
Highly sensitive and selective immunosensors are widely applied to detect small molecules. Organic solvents extraction of small molecules in samples is generally required when the small molecules have poor solubility...
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A 3-step Chemiluminescence Method for Chemical Oxygen Demand Measurement with Dichromate Oxidizing Reagent

Tue, 09/19/2017 - 12:28
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01652B, PaperDo Thi Kim Hue, Takumi Shiba, Yasuaki Maeda, Norimichi Takenaka
In this study, the use of potassium dichromate as a oxidizing reagent in the 3-step chemiluminescence (CL) chemical oxygen demand (COD) method, which based on the principle of permanganate COD...
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Extraction optimization and pixel-based chemometric analysis of semi-volatile organic compounds in groundwater

Tue, 09/19/2017 - 12:28
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01348E, PaperPeter Christensen, Giorgio Tomasi, Mette Kristensen, Peter Engelund Holm, Jan Christensen
Semi-volatile organic compounds (semi-VOCs) are found in complex mixtures, and in low concentrations in groundwater. Chemical fingerprinting analysis of groundwater is therefore challenging, as it is necessary to obtain high...
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Paper Test Card for Detection of Adulterated Milk

Tue, 09/19/2017 - 12:28
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01321C, PaperJamie L Luther, Valentine Henry de Frahan, Marya Lieberman
In developing countries, milk is adulterated to meet demand and increase profit. Often the milk is diluted with water, and sugar, urea, and starch are added to mimic the color,...
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Determination of cause of death using paper-based microfluidic device as a colorimetric probe

Tue, 09/19/2017 - 12:28

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY01784G, PaperN. Ansari, A. Lodha, A. Pandya, S. K. Menon
In recent years, the use of benzodiazepines has increased in the commission of crime, homicide, suicide, drugs overdoses, robbery, and drug-facilitated sexual assault.
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Analysis of deferiprone in exhaled breath condensate using silver nanoparticle-enhanced terbium fluorescence

Tue, 09/19/2017 - 12:28

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY01715D, PaperEsmail Mohamadian, Ali Shayanfar, Maryam Khoubnasabjafari, Vahid Jouyban-Gharamaleki, Saba Ghaffary, Abolghasem Jouyban
Exhaled breath condensate (EBC) has been proposed as an alternative non-invasive biological sample for therapeutic drug monitoring.
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Immunoaffinity nanogold coupled with direct analysis in real time (DART) mass spectrometry for analytical toxicology

Tue, 09/19/2017 - 07:20

Anal. Methods, 2017, 9,4954-4957
DOI: 10.1039/C7AY00922D, CommunicationK. M. Evans-Nguyen, T. L. Hargraves, A. N. Quinto
A rapid, definitive trace drug identification technique using nanogold surfaces with mass spectrometry was developed.
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Box-Behnken design applied to optimize the ultrasound-assisted extraction of petroleum biomarkers in river sediment samples using green analytical chemistry

Mon, 09/18/2017 - 11:05
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01470H, PaperFausto Moreira Moreira Araujo, Mellina Santos Rachid, Marcone Augusto Leal de Oliveira, Renato Matos, Maria Auxiliadora Costa Matos
In the present paper, the 3³ Box-Behnken design with a triplicate central point was used to optimize the conditions for the ultrasound-assisted extraction of n-alkanes (C10-C40) and isoprenoids (phytane and...
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Forensic discrimination between authentic and counterfeit perfumes using paper spray mass spectrometry and multivariate supervised classification

Mon, 09/18/2017 - 08:03

Anal. Methods, 2017, 9,4979-4987
DOI: 10.1039/C7AY01295K, PaperJ. A. R. Teodoro, H. V. Pereira, D. N. Correia, M. M. Sena, E. Piccin, R. Augusti
Paper spray mass spectrometry (PS-MS) is combined with chemometric methods (PCA, SIMCA and PLS-DA) for a fast and reliable forensic discrimination between authentic and counterfeit perfumes.
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