Analytical Chemistry News

Low cost and rapid analytical technique for directly spectrophotometric determination of chromium in V-Cr-Ti alloys without chromogenic agent

RSC - Anal. Methods latest articles - Fri, 06/30/2017 - 06:56
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01090G, Technical NoteLunfu Tian, Deshuang Zou, Yichun Dai, Lili Wang, Wei Gao
Quantification of chromium in V-Cr-Ti ternary alloys, used as candidate structural materials for fusion reactors, is essential in view of its significant effect on properties of these vanadium-based alloys. Various...
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A Strategy of Rapid identification of healthy Tegillarca granosa from among those contaminated with unspecified heavy metals using infrared spectroscopy

RSC - Anal. Methods latest articles - Fri, 06/30/2017 - 06:56
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00912G, PaperXi Chen, Leiming Yuan, X. Chen, Yijian Shi, Dehua Zhu
A novel strategy of rapid distinguishing healthy Tegillarca granosa samples from among those subjected to unspecified heavy metal contamination is here introduced using infrared spectroscopy approach. Heavy metal contamination in...
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New LC-MS/MS method for fast determination of formaldehyde in air of public places

RSC - Anal. Methods latest articles - Fri, 06/30/2017 - 06:56
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00894E, CommunicationYong-Gang Zhao, Yun Zhang, Fenglian Wang, Ning Chen, Chao-Yan Lou, Kai Zhang, Mi-Cong Jin, Yan Zhu
In china, air pollution is getting worse, and the adverse effect of formaldehyde on the human health has been attracting more and more attention. The present work proposes a novel,...
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A fast and high throughput LC-MS/MS method for the determination of 58 human and veterinary drugs in river water

RSC - Anal. Methods latest articles - Fri, 06/30/2017 - 06:56
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01240C, CommunicationXiao-Hong Chen, Yong-Gang Zhao, Qiaoli Qiu, Yan Zhu, Jian-Qing Min, Mi-Cong Jin
This study developed a method to perform the simultaneous determination of 58 (ultra) trace human and veterinary drugs in river water. The analytes included 24 steroid hormones, 22 sulfonamides and...
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HPLC-UV platform for trace analysis of three isomeric mononitrophenols in water with chitin based solid phase extraction

RSC - Anal. Methods latest articles - Fri, 06/30/2017 - 06:56

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY01000A, PaperShivender Singh Saini, Guillermo J. Copello, A.[space]L. J. Rao
Chitin based solid phase extraction for mononitrophenol preconcentration and detection.
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Measuring elasticity of wet cellulose beads with an AFM colloidal probe using a linearized DMT model

RSC - Anal. Methods latest articles - Fri, 06/30/2017 - 06:56
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01219E, CommunicationJohannes Hellwig, Rose-Marie Pernilla Karlsson, Lars Wagberg, Torbjorn Pettersson
The mechanical properties of wet cellulose are investigated using an atomic force microscope AFM and calculated using a linearized DMT model. Measurements were performed using a model system of gel...
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Common Mistakes in Cross-Validating Classification Models

RSC - Anal. Methods latest articles - Fri, 06/30/2017 - 06:56
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01363A, PaperShuxia Guo, Thomas Bocklitz, Ute Neugebauer, J Popp
The common mistakes of cross-validation (CV) for the development of chemometric models for Raman based biological applications were investigated. We focused on two common mistakes: the first mistake occurs when...
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Paper Spray Ionization Mass Spectrometry Applied to Forensic Chemistry - Drugs of Abuse, Inks and Questioned Documents

RSC - Anal. Methods latest articles - Thu, 06/29/2017 - 10:48
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01091E, PaperEloilson Domingos, Thays C Carvalho, Igor Pereira, Gessica Adriana Vasconcelos, Christopher Thompson, Rodinei Augusti, Rayza R.T. Rodrigues, Lilian V. Tose, Heloa Santos, Joyce R Araujo, Boniek G. Vaz, Wanderson Romao
With the advent of a new family of ionization techniques, the ambient mass spectrometry (or ambient MS) was introduced as a simple way of generating ions in MS. Among them,...
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Effective SERS detection using a flexible wiping substrate based on electrospun polystyrene nanofibers

RSC - Anal. Methods latest articles - Tue, 06/27/2017 - 12:26

Anal. Methods, 2017, Advance Article
DOI: 10.1039/C7AY00882A, PaperJalaja K., Bhuvaneswari S., Manjunatha Ganiga, Divyamol R., Anup S., Jobin Cyriac, Benny K. George
In this paper we demonstrate a flexible SERS substrate that offers effective in situ sampling by wiping directly from the surface of luggage, fruits or any surface of interest.
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Montmorillonite/polyaniline/polyamide nanocomposite as a novel stir bar coating for sorptive extraction of organophosphorous pesticides in fruit juices and vegetables applying response surface methodology

RSC - Anal. Methods latest articles - Tue, 06/27/2017 - 09:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00579B, Paperzahra ayazi, Raana Jafarzadeh, Amir Abbas Matin
In this research a novel nanocomposite based on incorporation of montmorillonite (MMT) into polyaniline-polyamide (PANI-PA) hybrid was prepared by in situ oxidative polymerization of polyaniline in the MMT-PA mixture and...
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A robust analytical method for the determination of pesticide residues in wastewater

RSC - Anal. Methods latest articles - Tue, 06/27/2017 - 09:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00704C, PaperLisa Jones, Brian Kinsella, Ken Forde, Ambrose Furey, Fiona Regan
Much research has been carried out on the analysis of chemical residue pollutants in the aquatic environment including drinking water, lakes, rivers, ground water, estuaries and coastal zones. However, few...
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SI traceable determination of arsenic species in kelp (Thallus laminariae)

RSC - Anal. Methods latest articles - Mon, 06/26/2017 - 10:16
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01111C, PaperLee L Yu, Rachel C Stanoyevitch, Rolf Zeisler
Kelp is a dietary supplement that contains significant amount of arsenic. A lack of standards for arsenosugars, the most abundant arsenic species in kelp, hindered the determination of and reference...
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Fast Quantitation of Pyrazole Fungicides in Wine by Ambient Ionization Mass Spectrometry

RSC - Anal. Methods latest articles - Mon, 06/26/2017 - 08:13
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01534H, PaperFan Pu, Wenpeng Zhang, Chao Han, Zheng Ouyang
Fungicides are widely used for growing the grapes that are used for making wines. Chromatography coupled with tandem mass spectrometry is usually time and labor consuming for quantitation of fungicides...
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Heating paper spray mass spectrometry for enhanced detection of propranolol in dried blood samples

RSC - Anal. Methods latest articles - Mon, 06/26/2017 - 08:13
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01169E, PaperHuang Huang, Qicai Wu, Liang Zeng, Li Wan, Songqing Lai, Xiujie Yin, Jianfeng Huang, Bi-cheng Yang, Jichun Liu
Paper spray mass spectrometry (PSMS) has been widely used for rapid analysis of complex samples, particularly in rapid analysis of clinical samples for point-of-care diagnostics. In this study, heating PSMS...
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Retrospective case study on the suitability of mid-infrared microscopic imaging for the diagnosis of mucormycosis in human tissue sections

RSC - Anal. Methods latest articles - Mon, 06/26/2017 - 08:13
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01132F, PaperJohannes D Pallua, Seraphin Unterberger, Nadin Pemberger, Claudia Woss, Christian Ensinger, Bettina Zelger, Cornelia Lass-Floerl, Michaela Lackner
Infections caused by mucormycetes are life-threating infections, particularly for patients suffering from immunosuppression or uncontrolled diabetes mellitus. The early diagnosis of this devastating infectious disease is essential to target antifungal...
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Development of an Easily Adaptable, High Sensitivity Source for Inlet Ionization

RSC - Anal. Methods latest articles - Fri, 06/23/2017 - 09:36
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00995J, PaperI-Chung Lu, Efstathios A Elia, Wen-Jing Zhang, Milan Pophristic, Ellen D Inutan, Charles N McEwen, Sarah Trimpin
An unexpected ionization process was recently discovered for use in mass spectrometry in which no added energy is required to convert condensed-phase molecules to ESI-like gas-phase ions. This process offers...
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Evaluation of chemometric methodologies for classification of Coffea canephora cultivars via FT-NIR spectroscopy and direct sample analysis

RSC - Anal. Methods latest articles - Fri, 06/23/2017 - 09:36
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01167A, PaperAderval S. Luna, Arnaldo P. da Silva, Enrique A. Alves, Rodrigo B. Rocha, Igor C. A. Lima, Jefferson Santos de Gois
This work presents a study of chemometric tools for classification of Coffea canephora cultivars via in situ (whole beans) direct sample analysis using Near Infrared Spectroscopy (NIR). The sample pretreatment...
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Cell Measurement by Flow Cytometry Chip with Twisted Micro Sheath Flow Channel

RSC - Anal. Methods latest articles - Thu, 06/22/2017 - 08:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00886D, PaperTOMOMI SATO, RYO MIYAKE
We are developing an integrated flow cytometry chip, which comprises a pre-treatment part and a sheath flow-forming part with a twisted microchannel structure, for continuous monitoring of bacteria in drinking...
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The Compositional Characterization and Painting Technique of Chinese Red and White Porcelain by EDXRF and SR-[small mu ]XRF Mapping Analysis

RSC - Anal. Methods latest articles - Thu, 06/22/2017 - 08:26
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY00860K, Paperrui wen, yun zhang, Dong Wang, Lihua Wang
Red and white porcelain was representative of high quality Chinese technology in a historical context. Red and white porcelain sherds excavated from the Mansion of Prince Qin were selected to...
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Calibration of the mobility scale in ion mobility spectrometry: the use of 2,4-lutidine as a chemical standard, the two-standards calibration method and the incorrect use of drift tube temperature for calibration

RSC - Anal. Methods latest articles - Wed, 06/21/2017 - 09:20
Anal. Methods, 2017, Accepted Manuscript
DOI: 10.1039/C7AY01126A, PaperRoberto Fernandez-Maestre
Ion mobility spectrometry (IMS) is an analytical technique that separates ions in the gas-phase under the influence of an electric field according to their size to charge ratio. We used...
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