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10 Newest Publications about the topic autosamplers


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A closer look into the nitrogen blank in elemental analyser/isotope ratio mass spectrometry measurements

02-Nov-2017 | Reinhard Langel, Jens Dyckmans, Rapid Communications in Mass Spectrometry, 2017

Abstract RATIONALE One important limitation for the precise measurement of minute amounts of N in solid samples by elemental analyser/isotope ratio mass spectrometry (EA/IRMS) is the accurate determination of the analyser blank value. This study was performed to identify different sources, ...


IJERPH, Vol. 14, Pages 195: Volatile Profiles of Emissions from Different Activities Analyzed Using Canister Samplers and Gas Chromatography-Mass Spectrometry (GC/MS) Analysis: A Case Study

15-Feb-2017 | Orecchio, Santino ; Fiore, Michele ; Barreca, Salvatore ; Vara, Gabriele, International Journal of Environmental Research and Public Health, 2017

The objective of present study was to identify volatile organic compounds (VOCs) emitted from several sources (fuels, traffic, landfills, coffee roasting, a street-food laboratory, building work, indoor use of incense and candles, a dental laboratory, etc.) located in Palermo (Italy) by using ...


Direct Interface between Digital Microfluidics and High Performance Liquid Chromatography–Mass Spectrometry

23-Nov-2015 | Chang Liu; Kihwan Choi; Yang Kang; Jihye Kim; Christian Fobel; Brendon Seale; J. Larry Campbell; Thomas R. Covey; Aa ..., Analytical Chemistry, 2015

We introduce an automated method to facilitate in-line coupling of digital microfluidics (DMF) with HPLC-MS, using a custom, 3D-printed manifold and a custom plugin to the popular open-source control system, DropBot. The method was designed to interface directly with commercial autosamplers (with ...


Evaluation of a multi‐fiber exchange solid‐phase microextraction system and its application to on‐site sampling

27-Aug-2015 | German A. Gómez‐Ríos, Nathaly Reyes‐Garcés, Janusz Pawliszyn, Journal of Separation Science, 2015

Until recently, multiple solid‐phase microextraction fibres could not be automatically desorbed in a single gas chromatographic sequence without manual intervention of an operator. This drawback had been a critical issue, particularly during the analysis of numerous on‐site samples taken with ...


Sensors, Vol. 13, Pages 208-220: Acetic Acid Detection Threshold in Synthetic Wine Samples of a Portable Electronic Nose

24-Dec-2012 | Macías, Miguel Macías; Manso, Antonio García; Orellana, Carlos Javier García; Velasco, Horacio Manuel González; Caba ..., Sensors, 2012

Wine quality is related to its intrinsic visual, taste, or aroma characteristics and is reflected in the price paid for that wine. One of the most important wine faults is the excessive concentration of acetic acid which can cause a wine to take on vinegar aromas and reduce its varietal ...


Resolution of uranium isotopes with kinetic phosphorescence analysis

25-Sep-2012 | Sarah Miley, Anne Hylden, Judah Friese, Journal of Radioanalytical and Nuclear Chemistry, 2012

This study was conducted to test the ability of the Chemchek™ Kinetic Phosphorescence Analyzer Model KPA-11 with an auto-sampler to resolve the difference in phosphorescent decay rates of several different uranium isotopes, and therefore identify the uranium isotope ratios present in a sample. ...


Calcification and organic production on a Hawaiian coral reef

18-Aug-2011 | Marine Chemistry, 2011

Net ecosystem calcification rates (NEC) and net photosynthesis (NP) were determined from CO2 seawater parameters on the barrier coral reef of Kaneohe Bay, Oahu, Hawaii. Autosamplers were deployed to collect samples on the barrier reef every 2 hours for six 48-hour deployments, two each in June ...


Trace analysis of environmental matrices by large-volume injection and liquid chromatography–mass spectrometry

17-Aug-2011 | Francesco Busetti, Will J. Backe, Nina Bendixen, Urs Maier, Benjamin Place, Walter Giger, Jennifer A. Field, Analytical and Bioanalytical Chemistry, 2011

The time-honored convention of concentrating aqueous samples by solid-phase extraction (SPE) is being challenged by the increasingly widespread use of large-volume injection (LVI) liquid chromatography–mass spectrometry (LC–MS) for the determination of traces of polar organic contaminants in ...


A high-performance liquid chromatographic method for benznidazole quantitation in plasma of patients with Chagas disease

19-Jan-2011 | Laura Guerrero; Ma Jesús Pinazo; Elizabeth Posada; Joaquim Gascón; Josep Ribas; Dolors Soy, Clinical Chemistry , 2011

Abstract Background: Chagas disease is endemic in Latin America, affecting 16–18 million people with more than 100 million exposed to risk of infection. Its etiological agent is Trypanosoma cruzi. To date, benznidazole is the only treatment of Chagas disease available in Europe. Methods: A ...


IJERPH, Vol. 7, Pages 4100-4110: Development of a Combined Real Time Monitoring and Integration Analysis System for Volatile Organic Compounds (VOCs)

26-Nov-2010 | Oka, Kentaro ; Iizuka, Atsushi ; Inoue, Yasuo ; Mizukoshi, Atsushi ; Noguchi, Miyuki ; Yamasaki, Akihiro ; Yanagisaw ..., International Journal of Environmental Research and Public Health, 2010

A combined integration analysis and real time monitoring (Peak Capture System) system was developed for volatile organic compounds (VOCs). Individual integration analysis and real time monitoring can be used to qualitatively and quantitatively analyze VOCs in the atmosphere and in indoor ...


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