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# The two authors contributed equally to this work *Address correspondence and reprint requests to: Jing-Yuan Fang, MD, PhD or Jie Hong, PhD, GI Division, Shanghai Jiao-Tong University School of Medicine Renji Hospital, Shanghai Institution of Digestive Disease; Key Laboratory of Gastroenterology & Hepatology, Ministry of Health (Shanghai Jiao-Tong University); State Key Laboratory of Oncogene ...
Abstract. Characterizing the chemical composition of ambient particulate matter (PM) provides valuable information on concentration secondary species and toxic metals assists in validation abatement techniques. The components PM can be measured by sampling filters analyzing them laboratory or using real-time measurements species. It is important for accuracy monitoring networks that from offlin...
Mono-, diand triacylglycerol (MAG, DAG, TAG), sterol ester (SE), free sterol (S) and free fatty acid (FFA) standards were analyzed in the presence of ammonium ions and ammonia by flow injection MS2 and MS3, and by normal phase-liquid chromatography (NP-LC) MS2 positive electrospray ionization (ESI) mass spectrometry (MS). The MS data recorded for ammonium adducts ([M+ NH4]) of TAGs, DAGs, and M...
Different carbonates have been detected on Ceres, and their abundance and spatial distribution have been mapped using a visible and infrared mapping spectrometer (VIR), the Dawn imaging spectrometer. Carbonates are abundant and ubiquitous across the surface, but variations in the strength and position of infrared spectral absorptions indicate variations in the composition and amount of these mi...
Aqueous two-phase systems (ATPSs) are composed of two immiscible aqueous phases that are in equilibrium. As one of the separation methods, aqueous two-phase extraction (ATPE) has advantages of biocompatibility, process integration capability, and large-scale feasibility1. As far as we know, ATPE has been used for the separation of proteins2, enzymes3–4, organic acids5–6, and so on. Based on the...
1 Molecules Editorial Office, Ocean University of China, Qingdao 266003, China. Tel. 0086 532 203 1860. Fax 0086 532 203 1522. E-mail: [email protected]. http:/molecules.ouc.edu.cn 2 Molecular Diversity Preservation International (MDPI), Matthaeusstrasse 11, CH-4057 Basel, Switzerland. Tel. 0041 79 322 3379. Fax 0041 61 302 8918. E-mail: [email protected]. http://www.mdpi.org/lin/ 3 Molecular Diversi...
Abstract. Seasonal variability of non-refractory PM1 (NR-PM1) was studied at a rural background site (National Atmospheric Observatory Košetice – NAOK) in the Czech Republic to investigate effect regional and long-range atmospheric transport central Europe. NR-PM1 measurements were performed by compact time-of-flight aerosol mass spectrometry (C-ToF-AMS), chemically speciated size distributions...
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