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2,022 Newest Publications about the topic solution

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Anionic conjugated polymer as a multi-action sensor for the sensitive detection of Cu2+, PPi, real-time ALP assaying and cell imaging

21-May-2015 | Akhtar Hussain Malik; Sameer Hussain; Arvin Sain Tanwar; Sourav Layek; Vishal Trivedi; Parameswar K Iyer, Analyst, 2015

A Cu2+ ensemble polyfluorene derivative, poly[5,5'-(((9H-fluorene-9,9-diyl)bis(hexane-6,1-diyl))bis(oxy))diisophthalate] sodium salt (PFT) displays unprecedented selectivity for PPi (LOD=2.26 ppb) in aqueous solution as well as in random urine samples at physiological pH viz-a-viz monitoring ALP ...

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Nanopore analysis of amyloid fibrils formed by lysozyme aggregation

21-May-2015 | Nikolay Martyushenko; Nicholas A. W. Bell; Robin Lamboll; Ulrich Keyser, Analyst, 2015

The measurement of single particle size distributions of amyloid fibrils is crucial for determining mechanisms of growth and toxicity. Nanopore sensing is an attractive solution for this problem since it gives information on aggregates’ shapes with relatively high throughput for a single particle ...

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Applications of DART‐MS for food quality and safety assurance in food supply chain

14-May-2015 | Tianyang Guo, Wei Yong, Yong Jin, Liya Zhang, Jiahui Liu, Sai Wang, Qilong Chen, Yiyang Dong, Haijia Su, Tianwei Tan, Mass Spectrometry Reviews, 2015

Direct analysis in real time (DART) represents a new generation of ion source which is used for rapid ionization of small molecules under ambient conditions. The combination of DART and various mass spectrometers allows analyzing multiple food samples with simple or no sample treatment, or in ...

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Application of Surface Enhanced Raman Scattering to the Solution Based Detection of a Popular Legal High, 5,6-methylenedioxy-2-aminoindane (MDAI)

14-May-2015 | Samuel Mabbott; Omar Alharbi; Kate Groves; Royston Goodacre, Analyst, 2015

The ever increasing numbers and users of designer drugs means that analytical techniques have to evolve constantly to facilitate their identification and detection. We report that surface enhanced Raman scattering (SERS) offers a relatively fast and inexpensive method for the detection of MDAI at ...

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Development and validation of a generic stability‐indicating MEEKC method for five fluoroquinolone antibiotics

12-May-2015 | Eliangiringa Kaale, Ludwig Höllein, Ulrike Holzgrabe, ELECTROPHORESIS, 2015

In this paper, a reliable stability‐indicating generic MEEKC method for the analysis of five commonly used fluoroquinolones (FQs) has been developed and optimised by a central composite circumscribed experimental design. The separation was carried out using a fused silica capillary (60.2 cm ...

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Insights into the binding sites of sulforaphane on insulin studied by electrospray ionization mass spectrometry

12-May-2015 | V. Nagaveni, S. Prabhakar, Rapid Communications in Mass Spectrometry, 2015

Rationale Sulforaphane (SFN) is a natural isothiocyanate, known to reduce the risk of cancer and also aortic damage and diabetic cardiomyopathy induced by type 2 diabetes, etc. A more detailed knowledge on the direct interaction of SFN with insulin and its binding sites is necessary for better ...

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Determining the suitability of mass spectrometry for understanding the dissolution processes involved with pharmaceutical tablets

12-May-2015 | Claire Lewis, Andrew Ray, Tony Bristow, Stephen Wren, Rapid Communications in Mass Spectrometry, 2015

Rationale A current challenge for analytical chemists is the development of the measurement systems and approaches required to understand dynamic processes such as tablet dissolution. The design and development of oral tablets could be improved by the availability of detailed information about ...

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Nano-photocatalysts in microfluidics, energy conversion and environmental applications

07-May-2015 | Jemish Parmar; Seungwook Jang; Lluís Soler; Dong-Pyo Kim; Samuel Sánchez, Lab on a Chip, 2015

Extensive studies have been carried out on photocatalytic materials in recent years as photocatalytic reactions offer a promising solution for solar energy conversion and environmental remediation. Currently available commercial photocatalysts still lack efficiency and thus are economically not ...

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Sensors, Vol. 15, Pages 10686-10704: A Label-Free Impedimetric DNA Sensor Based on a Nanoporous SnO2 Film: Fabrication and Detection Performance

06-May-2015 | Le, Minh Hai; Jimenez, Carmen ; Chainet, Eric ; Stambouli, Valerie, Sensors, 2015

Nanoporous SnO2 thin films were elaborated to serve as sensing electrodes for label-free DNA detection using electrochemical impedance spectroscopy (EIS). Films were deposited by an electrodeposition process (EDP). Then the non-Faradic EIS behaviour was thoroughly investigated during some ...

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Optically Transparent Electrodes Modified with Sulfide Ion‐Covered CdS Quantum Dots for Sensitive Photoelectrochemical Detection of Sulfhydryl‐Containing Compounds

01-May-2015 | Lin Zhang, Yuanqiang Hao, Xiaoying Wang, Yunfei Long, Angela Ramos, Dianlu Jiang, Xiaohua Ma, Qinlu Lin, Feimeng Zhou, Electroanalysis, 2015

Abstract A sensitive and selective photoelectrochemical sensor has been developed. Negatively charged, citrate‐capped CdS quantum dots (QDs) are assembled layer‐by‐layer onto indium tin oxide (ITO) electrodes precoated with positively charged poly(diallyldimethylammonium chloride). By exposing ...

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