Instrument: Thermo Fisher Scientific DELTA V Plus isotope ratio mass spectrometer

Acronym: Delta V Plus IRMS

External Identifier: skos:exactMatch: http://vocab.nerc.ac.uk/collection/L22/current/TOOL1021/

Description

The Thermo Scientific DELTA V Plus is an isotope ratio mass spectrometer designed to measure isotopic, elemental and molecular ratios of organic and inorganic compounds. The DELTA V Plus is an enhanced model of the DELTA V series of isotope ratio mass spectrometers, which can be upgraded from the DELTA V Advantage. The DELTA V Plus can be operated in Continuous Flow or Dual Inlet mode and can accommodate up to 10 collectors, ensuring flexibility to cover many applications. The DELTA V Plus is controlled by an automated, integrated Isodat software suite. A magnet, whose pole faces determine the free flight space for the ions, eliminates the traditional flight tube. The magnet is designed for fast mass switching which is further supported by a fast jump control between consecutive measurements of multiple gases within one run. The sample gas is introduced at ground potential, eliminating the need for insulation of the flow path, ensuring 100 percent transfer into the ion source. The amplifiers register ion beams up to 50 V. The DELTA V Plus has refined optics, enabling greater ion transmission than the DELTA V Advantage. It has a sensitivity of 800 molecules per ion (M/I) in Dual Inlet mode and 1100 M/I in Continuous Flow mode. It has a system stability of < 10 ppm and an effective magnetic detection radius of 191 nm. It has a mass range of 1 - 96 Dalton at 3 kV.

Datasets (7)

Dataset Name	PI-Supplied Description	PI-Supplied Name
Bulk tissue stable isotope analysis of zooplankton samples collected by MOCNESS from R/V Sally Ride and R/V Roger Revelle cruises in the southern California Current Ecosystem from 2020-2023	used for the determination of stable isotope ratios of carbon and nitrogen	ThermoScientific DELTA V+ isotope ratio mass spectrometer
Nitrogen compound-specific isotope values of amino acids for each gelatinous zooplankton sample and the sample's estimated trophic position from R/V Sally Ride and R/V Roger Revelle cruises in the southern California Current Ecosystem from 2020-2023	used for the determination of stable isotope ratios of carbon and nitrogen from bulk tissues	ThermoScientific DELTA V+ isotope ratio mass spectrometer
Sulfur, carbon, and iron biogeochemistry of biomass, below ground material, and dissolved organic matter from three mangrove ecosystems in the Caribbean and Florida collected over two field seasons in 2022 and 2024	Thermo Scientific Delta V Plus Isotope Ratio Mass Spectrometer (IRMS) via Conflo IV to measure relative abundance of isotopes, in this case δ34S.	Thermo Scientific Delta V Plus Isotope Ratio Mass Spectrometer (IRMS) via Conflo IV
Benthic chamber geochemical data obtained with an in situ benthic lander from the R/V Savannah at sampling stations across the Louisiana shelf and slope in the Northern Gulf of Mexico during four cruise between July 2021 and July 2022	δ13C-DIC measurements were conducted with a Thermo Electron SurveyorLite autosampler, a Surveyor MS HPLC pump, and an LC Isolink interface coupled to a Thermo Scientific Delta V plus stable isotope mass spectrometer.	Thermo Scientific Delta V plus
Nitrogen isotopic ratios of individual amino acids extracted from size-fractionated particulate organic matter aboard the R/V Kilo Moana in February (cruise KM1407) and September (cruise KM1418) 2014 at Station ALOHA	Thermo Trace gas chromatograph, GC-C-III combustion/reduction interface, Delta-V Plus isotope ratio mass spectrometer. Used to determine nitrogen isotope ratios of individual amino acids purified from particle samples.	Delta-V Plus isotope ratio mass spectrometer.
Concentrations of dissolved inorganic macronutrients, chlorophyll a, phaeophytin, PON, and POC measured during phytoplankton shipboard incubation experiments on the FeOA cruise SKQ202209S on R/V Sikuliaq in the NE Pacific from June to July 2022	Thermo Delta V plus Continuous Flow Elemental Analyzer Isotope Ratio Mass Spectrometer coupled to a Thermo Flash Elemental Analyzer for POC, PON, 15N, 13C analyses of incubation samples.	Thermo Delta V plus Continuous Flow Elemental Analyzer Isotope Ratio Mass Spectrometer
Sulfate triple oxygen isotope signatures in Messinian evaporite and barite from cores collected	The delta18O composition of purified barite was measured using a high-temperature conversion elemental analyzer (TC/EA) coupled with a Thermo Scientific Delta V Plus isotope ratio mass spectrometer (IRMS), configured in a continuous flow mode.	Thermo Scientific Delta V Plus isotope ratio mass spectrometer (IRMS)