Results 171 to 180 of about 20,371 (290)

Cold EI—The Way to Improve GC‐MS and Increase Its Range of Applications

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Gas chromatography‐mass spectrometry (GC‐MS) with Cold electron ionization (EI) is based on interfacing the GC and MS with a supersonic molecular beam (SMB) along with electron ionization of vibrationally cold sample compounds in the SMB in a contact‐free fly‐through ion source (hence the name Cold EI).
Aviv Amirav   +3 more
wiley   +1 more source

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt   +4 more
wiley   +1 more source

Metabolic and Physiological Predictors of Enteric Methane Emissions in Early Lactation Dairy Cows: A Prospective Observational Study. [PDF]

open access: yesLife (Basel)
Krištolaitytė J   +6 more
europepmc   +1 more source

The likely regional impacts of an agricultural emissions policy in New Zealand: Preliminary analysis [PDF]

open access: yes
Hendy and Kerr (2005b) find that an emissions charge on agricultural methane and nitrous oxide of $25 per tonne of carbon dioxide (CO2) equivalent would be likely to reduce New Zealand’s net land-use related emissions for commitment period one in the ...
Emma Brunton   +3 more
core  

Metal Hydrides‐Based Hydrogen Purification Systems—A Review

open access: yesMetalMat, EarlyView.
Metal hydrides as an innovative means to purify hydrogen can enable new avenues in the use of hydrogen as a clean energy vector across its production methods. ABSTRACT This review investigates the critical role of purification for enabling the use of hydrogen from various production pathways.
Cameron Reid   +2 more
wiley   +1 more source

Intra-annual variability of the greenhouse gas balance of a sahelian rangeland ecosystem in semi-arid West Africa [PDF]

open access: yes, 2018
Assouma, Mohamed Habibou   +6 more
core  

Comparative Efficiency of ZIF‐67 and ZIF‐67@ZnO Nanocomposites for Trypan Blue Adsorption: Preparation and RSM Modeling

open access: yesNano Select, EarlyView.
This study investigates the comparative efficiency of ZIF‐67 and ZIF‐67@ZnO in removing Trypan blue dye from wastewater. The materials exhibit excellent adsorption capacity, stability, and reusability, highlighting their potential as cost‐effective and eco‐friendly adsorbents.
Hassan Aberrwaila   +3 more
wiley   +1 more source

Enteric Methane Emission and Nitrogen Excretion of Lactating Cows Fed Soybean-Hulls as Partial Replacement of Corn Grain. [PDF]

open access: yesAnimals (Basel)
Buraschi LM   +10 more
europepmc   +1 more source

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