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Recyclable silver nanoplate-decorated copper membrane for solid-phase extraction coupled with surface-enhanced Raman scattering detection

Wed, 02/21/2018 - 22:22
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00043C, PaperXiaofei Yu, Yuhong Chang, Vinothkumar Natarajan, Xiao Li Zhang, Jinhua Zhan
The development of solid phase extraction (SPE) combined with the sensitive detection of surface enhanced Raman spectroscopy (SERS) has been successfully applied for the analyses of complex environmental samples. In...
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Powder Microelectrode Embedded with Carboxyl Multi-Walled Carbon Nanotubes for Sensitive and Quantitative Detection of Nitrofuran Residues

Tue, 02/20/2018 - 22:58
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00289D, PaperBaoshan He, Xiaoze Dong
In this study, a sensitive electrochemical detection method of nitrofuranzone (NF) and semicarbazide (SC) based on powder microelectrode embedded with carboxyl multi-walled carbon nanotubes was developed. The carboxyl groups was...
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Selective extraction of n-butylidenephthalide from Angelica sinensis (Danggui) by using functionalized iron oxide magnetic nanoparticles as trapping probes

Tue, 02/20/2018 - 22:58
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00065D, PaperChing-Yi Wu, Min-Li Wu, Yu-Chie Chen
n-Butylidenephthalide (BP) is an active compound in Angelica sinensis and a potential anti-cancer drug. Thus, purification of BP from a complex herb extract is important. In this study, we develop...
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Raman spectroscopic library of medieval pigments collected with five different wavelengths for investigation of illuminated manuscripts.

Tue, 02/20/2018 - 10:44
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00016F, Paper Open Access &nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Giorgia Marucci, Andy Beeby, Anthony William Parker, Catherine Emma Nicholson
Raman spectroscopy is widely applied in the cultural heritage field to perform non-destructive measurements in situ, in order to identify materials, specifically pigments. The spectra collected can be challenging to...
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Development of a novel voltammetric sensor for the determination of quercetin onto electrochemically pretreated carbon-paste electrode

Mon, 02/19/2018 - 01:04
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02953E, PaperKonstantin Pliuta, Alexander Chebotarev, Anastasiya Koicheva, Kateryna Bevziuk, Denys Snigur
In this work, a simple, cheap and sensitive sensor for quercetin voltammetric determination was developed. Quercetin is a flavonoid that is widely distributed in the plants. Antioxidant, anti-cancer, antibacterial and...
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Adsorption and HPLC of carbohydrates and related hydroxy compounds on zeolites

Mon, 02/19/2018 - 01:04
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02634J, PaperWolfgang Wach, Iris Fornefett, Christoph Buttersack, Klaus Buchholz
Carbohydrates, sugar alcohols, polyols, and other hydroxy compounds were separated on a HPLC-column filled with dealuminated hydrophobic Y zeolite with water as eluent. Disaccharides show a greater retention and selectivity...
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Deep eutectic solvent-based extraction coupled with green two-dimensional HPLC-DAD-ESI-MS/MS for the determination of anthocyanins from Lycium ruthenicum Murr. fruit

Sun, 02/18/2018 - 23:03
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00101D, PaperJun Sang, Bing Li, Yaya Huang, Qun Ma, Kang Liu, Cui-qin Li
This study aimed to extract and separate total anthocyanins from Lycium ruthenicum Murr. by combining deep eutectic solvents (DES) with macroporous resin chromatography and to develop green analytical methods for...
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Electrocatalytic Performance of a Zinc sulphide Nanoparticles modified carbon paste electrode for the simultaneous determination of acetaminophen, guanine and adenine

Sun, 02/18/2018 - 23:03
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00007G, PaperShivaraj Yellappa, Mallappa Mahanthappa, Nagaraju Kottam
The simultaneous electroanalysis of acetaminophen (AC), guanine (G) and adenine (A) successfully achieved on the zinc sulphide nanoparticles modified carbon paste electrode (ZnS NPs/CPE) in phosphate buffer solution (PBS). Zinc...
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Dendrimer grafted nanoporous silica fiber for headspace solid-phase micro-extraction coupled to gas chromatography determination of solvents residues in edible oil

Thu, 02/15/2018 - 18:38
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02842C, PaperZahra Ramezani, Iman Saeedi, Payman Hashemi
A recently prepared nanoporous G (1)-Dendrimer supported Santa Barbara Amorphous-15 (SBA-15) solid phase micro-extraction (SPME) fiber was successfully applied to the headspace solid-phase micro extraction of solvent residues such as...
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Mid-Infrared Sensor for Hydrocarbon Monitoring: The Influence of Salinity, Matrix and Aging on Hydrocarbon-Polymer Partitioning

Wed, 02/14/2018 - 18:53
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02874A, PaperRobert Stach, Bobby Pejcic, Charles Heath, Matthew B Myers, Boris Mizaikoff
Mid-infrared sensors (MIR) based on attenuated total reflection (ATR) spectroscopy provide a robust and sensitive platform for the detection of low levels of organic molecules dissolved in water. The chemical...
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In-situ Methanation with Flame Ionization Detection for the Determination of Carbon Dioxide in Various Matrices

Wed, 02/14/2018 - 18:53
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00079D, PaperJim Luong, Yujuan Hua, Ronda Gras, Myron Hawryluk
An analytical technique that employs in-situ methanation with flame ionization detection for the measurement of carbon dioxide in various matrices has been developed and implemented. The methanation of carbon dioxide...
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Investigation of Ethosuximide Stability under Certain ICH-Recommended Stress Conditions Using Validated Stability-Indicating HPLC Method

Tue, 02/13/2018 - 18:33
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02740K, PaperYasser El-Shabrawy, Mohamed Walash, Nahed El-Enany, Rania Nabih El-Shaheny
A study of the chemical stability of the antiepileptic drug ethosuximide (ESX) under certain ICH-recommended stress conditions was conducted for the first time. A stability-indicating HPLC method was applied using...
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Instant enumeration of total viable bacterial counts for food quality assurance using 'DEP-On-Go' sensor

Tue, 02/13/2018 - 05:16
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02927F, CommunicationMadhu Biyani, Radhika Biyani, Hiromi Ushijima, Eiichi Tamiya, Manish Biyani
Food quality has to be constantly monitored from farm-to-table to control foodborne illness. Total viable count (TVC), which estimates the population of live microbial load, can be an extremely useful...
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Direct Analysis in Real Time Mass Spectrometry (DART-MS) of Discrete Sample Areas without Heat Damage

Tue, 02/13/2018 - 05:16
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02987J, PaperG. Asher Newsome, Ikumi Kayama, Shannon A. Brogdon-Grantham
Direct analysis in real time mass spectrometry (DART-MS) analyzes intact object surfaces by exposing them to a stream of heated gas. The continuous gas flow prevents discrete sampling of a...
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Engineering Oligonucleotide-Based Peroxidase Mimetics for Colorimetric Assay of S1 Nuclease

Mon, 02/12/2018 - 23:01
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02830J, PaperChuan He, Jinli Zhang, Wei Li, Yan Fu
Herein we propose a rational design to construct peroxidase mimetics in response to S1 nuclease by employing guanine-rich oligonucleotides and Cu2+ ions. The enzymatic activities of DNA-Cu(II) are highly dependent...
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Detection of phytocannabinoids from buccal swabs by headspace solid phase microextraction - gas chromatography/mass spectrometry

Mon, 02/12/2018 - 23:01
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02996A, CommunicationTiffany McCann, Lauren Perry, Wei-Chuan Shih, Jorn Chi-Chung Yu
Headspace solid phase microextraction (HS-SPME), which is a solvent-free extraction technique, was configured with gas chromatography/mass spectrometry (GC/MS) to detect phytocannabinoids from buccal swabs. The HS-SPME extraction procedure, i.e. extraction...
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Adsorptive stripping voltammetric determination of dicyclomine hydrochloride at glassy carbon electrode modified with silver decorated Fe3O4 nanocubes in pharmaceutical and biological samples

Mon, 02/12/2018 - 19:55
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00009C, PaperChaitali R Rawool, Anuja S Rajpurohit, Ninad S Punde, Ashwini Kumar Srivastava
The proposed work introduces an electrochemical sensor based on Fe3O4/Ag nanocomposite for highly sensitive and selective electrochemical determination of Dicyclomine hydrochloride (DcCl) using adsorptive stripping square wave voltammetry (AdSSWV). A...
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Paper based lateral flow immunoassay for the enumeration of Escherichia coli in urine

Mon, 02/12/2018 - 19:55
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C7AY02974H, PaperAysen Gumustas, Mehmet Gokhan Caglayan, Merve Eryilmaz, Zekiye Suludere, Esra Acar Soykut, Bengi Uslu, Ismail H Boyac[i without dot], Ugur Tamer
In this experimental study, we developed lateral flow immunoassay strips for detection of Escherichia coli. For labelling, gold nanoparticles were prepared and modified with a Raman label. Meanwhile, not only...
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Effects of electrode insertion depth on neural signal amplitude in the spinal cord

Mon, 02/12/2018 - 10:45
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00028J, PaperShijie Deng, Hai Hu, Peng Wang
The technique used for electrode insertion navigation is of crucial importance for neural signal collection. The spinal cord mapping method tracks the placement of electrodes throughout their insertion trajectory in...
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Sulfonated chitooligosaccharide modified silica material for hydrophilic interaction liquid chromatography and its chromatographic evaluation

Mon, 02/12/2018 - 10:45
Anal. Methods, 2018, Accepted Manuscript
DOI: 10.1039/C8AY00070K, PaperKui Yan, Haiyan Yang, Shaohua Huang, Zhengwu Bai
A novel stationary phase derived from sulfonated chitooligosaccharide (COS) was prepared and evaluated in hydrophilic interaction liquid chromatography (HILIC) mode. Fourier-transform infrared spectroscopy (FT-IR), elemental analysis (EA), and thermogravimetry analysis...
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