Publication date: 1 November 2019Source: Talanta, Volume 204Author(s): Jiayi Sun, Siman Ma, Beibei Liu, Jia Yu, Xingjie GuoAbstractThis paper reports an effective approach for the fabrication of a per-4-chlorophenylcarbamate-β-cyclodextrin (β-CD) bonded chiral stationary phase (CPCDP) in high-performance liquid chromatography. The morphology and structure of the ligand and the chiral stationary phase (CSP) were characterized by scanning electron microscopy, transmission electron microscopy, solid...
Publication date: 1 November 2019Source: Talanta, Volume 204Author(s): Fang Yang, Xia Li, Jing Li, Yun Xiang, Ruo YuanAbstractThe expression variations of uracil-DNA glycosylase (UDG) can be used as effective biomarkers for the evaluation of gene regulation and related diseases. Here, by using a new target-triggered activation of rolling circle amplification (RCA) signal enhancement strategy, we have established a sensitive and label-free fluorescent approach for UDG activity detection and inhibition....
Publication date: 1 November 2019Source: Talanta, Volume 204Author(s): Y. He, A. Buch, M. Morisson, C. Szopa, C. Freissinet, A. Williams, M. Millan, M. Guzman, R. Navarro-Gonzalez, J.Y. Bonnet, D. Coscia, J.L. Eigenbrode, C.A. Malespin, P. Mahaffy, D.P. Glavin, J.P. Dworkin, P. Lu, S.S. JohnsonAbstractThermochemolysis of seven nucleobases—adenine, thymine, uracil, cytosine, guanine, xanthine, and hypoxanthine—in tetramethylammonium hydroxide (TMAH) was studied individually by pyrolysis gas chromatography...
Selective separation of bovine hemoglobin using magnetic mesoporous rare-earth silicate microspheres
Publication date: 1 November 2019Source: Talanta, Volume 204Author(s): Jundong Wang, Siyuan Tan, Qionglin Liang, Huiyuan Guan, Qiang Han, Mingyu DingAbstractSelective separation of heme proteins and peptides from complicated biological samples before comprehensive identification and characterization of intact biomolecules which are low stoichiometry is indispensable for ongoing proteomics. Here, three magnetic mesoporous rare-earth silicate (rare-earth = Er, Tm, Yb) microspheres prepared by facile...
Publication date: 1 November 2019Source: Talanta, Volume 204Author(s): Madson Moreira Nascimento, Gisele Olímpio da Rocha, Jailson Bittencourt de AndradeAbstractIn this work, we developed a simple, comprehensive, and effective device and procedure for sample preparation based on dispersive micro-solid phase extraction (d-μ-SPE) for the simultaneous determination of 30 polycyclic aromatic compounds or PACs (including 16 polycyclic aromatic hydrocarbons (PAHs), 3 quinones, and 11 nitro-PAHs) in water...
Publication date: Available online 24 June 2019Source: TalantaAuthor(s): Ning Li, Shuzhen Dou, Lei Feng, Xueyun Wang, Nan LuAbstractThe sensitivity of surface-assisted laser desorption/ionization (SALDI) mass spectrometry (MS) analysis depends on the efficiency of desorption and ionization of analyte molecules, which is usually limited by the low utilization efficiency of laser energy. Herein we demonstrate an efficient method to increase energy utilization efficiency for improving the efficiency...
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