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Bookin For Fusion Bead Machine For X-Ray Fluorescence Spectrometer (XRF)


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Booking for Stable Isotope Ratio Mass Spectrometer(IRMS)


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XRF-IRMS Lab

Location: ACMS 101

Instrument: Fusion Bead Machine For X-Ray Fluorescence Spectrometer (XRF)
Model/Supplier: Rigaku


The existing Rigaku WD-XRF system (X-ray generation 4kW,60kV-150mA) can detect elements from Na to U in a variety of materials in solid, powder, filtered form. The concentration range goes from ppm levels to 100wt%. All analyses are done on pressed pellets (30mm diameter) made from fine powder (particle size-50 micro meter, required quantity of about 5). Recently the facility has acquired a Claisse M4 Fluxer machine for sample preparation by fusion and preparing homogenized glass disks, which eliminate particle size and mineralogical and matrix effects, resulting in high analytical accuracy.






Instrument: Stable Isotope Ratio Mass Spectrometer(IRMS)
Model/Supplier:Thermo Scientific Delta V advantage IRMS;Flash EA-2000; Conflo IV universal Interface; Gas Bench II System

The mass spectrometry facility is equipped with a delta V advantage. Stable Isotope ratio massspectrometer(IRMS) coupled with an Elemental Analyzer Flash EA2000 and Gas Bench II sample preparation device to perform continuous-flow high-precision stable hydrogen( δ2H), oxygen( δ18O), carbon( δ13C), andnitrogen( δ15N) isotope ratio analyses on a variety of inorganic and organic samples including carbonate sediments, soli, water, plants, organics, aerosols,atmospheric gases, archaeological materials, animal tissue, bone collagen, etc.

Application

The Elemental Analyzer , and Gas Bench devices are used for on-line extraction of gas-phases from samples and introduction of the purified gases directly into the ion source of mass spectrometer for stable isotope ratio measurements. The elemental Analyzer with an automated solid sampler is used to combust solid inorganic/organic samples in continuous-flow for δ13C and δ15N analyses. The Gas Bench II system is used for temperature dependent carbonate-acid reaction and extraction of CO2 gas, which is subsequently measured for δ13C and δ18O values. This system can also be used for carbonate samples, gaseous species, dissolvedinorganic carbon, and for water isotope( δD and δ18O).

CONTACT

Convener: Prof. D. Paul (dpaul@iitk.ac.in) Internal: 6169,4608
Convener: Prof. R. Sinha (rsinha@iitk.ac.in) Internal: 7317,4604
Lab Incharge: Prashant Mishra (prmishra@iitk.ac.in) Internal: 7780