Isotopic Ratio Mass Spectrometerdelta S Finnigan Mat

Carbon isotope compositions were analyzed with a combined gas chromatography combustion isotope ratio mass spectrometer delta s finnigan mat.

Isotopic ratio mass spectrometerdelta s finnigan mat. The isotopic composition of the samples was measured against a working standard gas. 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. Powdered samples were reacted with dehydrated phosphoric acid under vacuum at 70 c. The finnigan mat 251 is a magnetic sector isotopic ratio ms.

Browse our complete portfolio below or let one of our experts help you tailor a selection specific to your application and workflow needs. Scientific instrument services carries a wide selection of parts for all models of thermo finnigan mass spectrometers. δ13c values for compounds with typical abundances of 5 ng are determined routinely. Contact sis about parts and repair services for the mat 251.

Samples hc2 hc5 and hc8 were too enriched in18otobe 2. On line h 2 capability. 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 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.

See also mat 252. 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. To a gas ratio mass spectrometer finnigan mat 252. The gc utilizes a septum equipped programable injector spi and is also fitted with a ctc a200s autosampler.

Available preconcentrators elemental analyzers gc interfaces lc interfaces and continuous flow inlets. 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. Isotope ratio mass spectrometers have also helped laboratories in the fields of food and doping analysis providing trustworthy analytical results. 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 finnigan mat delta s is dedicated to stable carbon isotopic δ13c analyses having been extensively modified to provide high sensitivity. 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.