Isotopic Ratio Mass Spectrometerdelta S Finnigan Mat

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.

Isotopic ratio mass spectrometerdelta s finnigan mat.

Leaf carbon isotope composition δ 13 c leaf was expressed relative to the pee dee belemnite standard vpdb and the analytical precision was 0. Supplies and service for the mat 253 sector isotopic ratio ms. The finnigan mat 251 is a magnetic sector isotopic ratio ms. Scientific instrument services carries a wide selection of parts for all models of thermo finnigan mass spectrometers.

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. The finnigan mat delta s is dedicated to stable carbon isotopic δ13c analyses having been extensively modified to provide high sensitivity. The isotopic composition of the samples was measured against a working standard gas. Carbon isotope compositions were analyzed with a combined gas chromatography combustion isotope ratio mass spectrometer delta s finnigan mat.

Powdered samples were reacted with dehydrated phosphoric acid under vacuum at 70 c. δ13c values for compounds with typical abundances of 5 ng are determined routinely. 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. Samples hc2 hc5 and hc8 were too enriched in18otobe 2.

See also mat 252. In order to aid you in the selection of replacement parts for your instrument the following part number cross reference chart can be used. Available preconcentrators elemental analyzers gc interfaces lc interfaces and continuous flow inlets. On line h 2 capability.

Isotope ratio mass spectrometers have also helped laboratories in the fields of food and doping analysis providing trustworthy analytical results. 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. The gc utilizes a septum equipped programable injector spi and is also fitted with a ctc a200s autosampler. Contact sis about parts and repair services for the mat 251.

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. Simultaneous mass range up to 25.