MC-ICP-MS measurement of δS and ΔS in small amounts of dissolved sulfate
نویسندگان
چکیده
Article history: Received 16 November 2012 Received in revised form 16 February 2013 Accepted 19 February 2013 Available online 5 March 2013
منابع مشابه
The scalar radius of the pion
The pion scalar radius is given by 〈r S〉 = (6/π) ∫ ∞ 4M2 π ds δS(s)/s , with δS the phase of the scalar form factor. Below K̄K threshold, δS = δπ , δπ being the isoscalar, S-wave ππ phase shift. At high energy, s > 2GeV , δS is given by perturbative QCD. In between I argued, in a previous letter, that one can interpolate δS ∼ δπ, because inelasticity is small, compared with the errors. This give...
متن کاملValidation of Bulk Analysis with Simulated Swipe Samples Containing Ultra- Trace Amounts of Uranium and Plutonium Using MC-ICP-MS
Suitable analytical procedures for the bulk analysis of ultra-trace amounts of uranium and plutonium have been developed using multi-collector inductively coupled mass spectrometry (MC–ICP–MS). The quantification and determination of the isotopic ratios of uranium and plutonium in three simulated swipe samples, a swipe blank, and a process blank were performed to validate the analytical perform...
متن کاملStrangeness contribution to the proton spin from lattice QCD.
We compute the strangeness and light-quark contributions Δs, Δu, and Δd to the proton spin in n(f)=2 lattice QCD at a pion mass of about 285 MeV and at a lattice spacing a≈0.073 fm, using the nonperturbatively improved Sheikholeslami-Wohlert Wilson action. We carry out the renormalization of these matrix elements, which involves mixing between contributions from different quark flavors. Our mai...
متن کاملRatios of Four STAT3 Splice Variants in Human Eosinophils and Diffuse Large B Cell Lymphoma Cells
Signal transducer and activator of transcription 3 (STAT3) is a key mediator of leukocyte differentiation and proliferation. The 3' end of STAT3 transcripts is subject to two alternative splicing events. One results in either full-length STAT3α or in STAT3β, which lacks part of the C-terminal transactivation domain. The other is at a tandem donor (5') splice site and results in the codon for Se...
متن کاملPhysicochemical study of spiropyran-terthiophene derivatives: photochemistry and thermodynamics.
The photochemistry and thermodynamics of two terthiophene (TTh) derivatives bearing benzospiropyran (BSP) moieties, 1-(3,3″-dimethylindoline-6'-nitrobenzospiropyranyl)-2-ethyl 4,4″-didecyloxy-2,2':5',2″-terthiophene-3'-acetate (BSP-2) and 1-(3,3″-dimethylindoline-6'-nitrobenzospiropyranyl)-2-ethyl 4,4″-didecyloxy-2,2':5',2″-terthiophene-3'-carboxylate (BSP-3), differing only by a single methyle...
متن کامل