Isotopic Ratio Mass Spectrometerdelta S Finnigan Mat

Supplies and service for the mat 253 sector isotopic ratio ms.

Isotopic ratio mass spectrometerdelta s finnigan mat.

Powdered samples were reacted with dehydrated phosphoric acid under vacuum at 70 c. Isotopic compositions of carbon in teeth and claws were determined by combustion of the samples in an elemental analyser carlo erba 1108 finnigan mat bremen germany interfaced with an isotope ratio mass spectrometer delta s finnigan mat bremen germany. The isotopic analyses were conducted using a finnigan continuous flow isotope ratio mass spectrometer delta s finnigan mat bremen germany at the stable isotope facility at inra nancy france. Available preconcentrators elemental analyzers gc interfaces lc interfaces and continuous flow inlets.

The finnigan mat delta s is dedicated to stable carbon isotopic δ13c analyses having been extensively modified to provide high sensitivity. δ13c values for compounds with typical abundances of 5 ng are determined routinely. Scientific instrument services carries a wide selection of parts for all models of thermo finnigan mass spectrometers. Leaf carbon isotope composition δ 13 c leaf was expressed relative to the pee dee belemnite standard vpdb and the analytical precision was 0.

The gc utilizes a septum equipped programable injector spi and is also fitted with a ctc a200s autosampler. The finnigan mat 251 is a magnetic sector isotopic ratio ms. To a gas ratio mass spectrometer finnigan mat 252. The isotopic composition of the samples was measured against a working standard gas.

The finnigan mat 253 stable isotope ratio mass spectrometer system delivers the highest precision for the determination of d h 13c 12c 15n 14n 18o 16o 34s 32s from so2 and sf6 28si 29si as well as ar kr and xe isotope ratios. See also mat 252. Simultaneous mass range up to 25. Samples hc2 hc5 and hc8 were too enriched in18otobe 2.

On line h 2 capability. In order to aid you in the selection of replacement parts for your instrument the following part number cross reference chart can be used. The uncertainties of 3 he 4 he ratio r r atm 4 he 20 ne ratio and helium abundance are 1 10 and 10 respectively. Browse our complete portfolio below or let one of our experts help you tailor a selection specific to your application and workflow needs.

Up to 10 collectors in a wide range of configurations supporting all isotope ratio ms applications in the mass range up to m z 96. The isotope ratio measurement is calibrated based on repeated measurements of nbs 19 and nbs 18 and precision is 0 10 for d18oand 0 08 for d13c 1sigma.