نتایج جستجو برای: alpha spectrometry

تعداد نتایج: 296808  

Journal: :Analytical Chemistry 2021

In this study, proton-irradiated tungsten targets, up to 2.6 GeV, were investigated for the purpose of experimental cross-section measurements. Radiochemical separation methods applied isolate residual long-lived alpha-emitters 148Gd, 154Dy, and 146Sm beta-emitters 129I 36Cl from targets. The molecular plating technique has been prepare samples alpha-spectrometry. Production cross-sections dete...

Journal: :Analytica chimica acta 2008
Xiaolin Hou Per Roos

The radiometric methods, alpha (alpha)-, beta (beta)-, gamma (gamma)-spectrometry, and mass spectrometric methods, inductively coupled plasma mass spectrometry, accelerator mass spectrometry, thermal ionization mass spectrometry, resonance ionization mass spectrometry, secondary ion mass spectrometry, and glow discharge mass spectrometry are reviewed for the determination of radionuclides. Thes...

Journal: :The Biochemical journal 1986
D Abraham P Daniel A Dell J Oates R Sidebotham B Winchester

Two homologous series of urinary oligosaccharides were identified by h.p.l.c. and fast-atom-bombardment mass spectrometry in feline alpha-mannosidosis. The predominant series has the composition Man2-8GlcNAc2 and a minor series the composition Man2-9GlcNAc. The structure of the most abundant oligosaccharide, which accounts for over 80% of the urinary oligosaccharide, was shown to be alpha-D-Man...

2005
T. Siiskonen R. Pöllänen

A Monte Carlo code, known as AASI, is developed for simulating energy spectra in alpha spectrometry. The code documented here is a comprehensive package where all the major processes affecting the spectrum are included. A unique feature of the code is its ability to take into account coincidences between the particles emitted from the source. Simulations and measurements highlight the importanc...

Journal: :Journal of lipid research 1982
G Janssen S Toppet G Parmentier

The structure of the side chain of the 3 alpha, 7 alpha, 12 alpha-trihydroxy-5 beta-C29 dicarboxylic bile acid occurring in body fluids of infants with coprostanic acidemia was investigated by means of mass spectrometry and nuclear magnetic resonance spectroscopy. The findings identified this bile acid as 3 alpha, 7 alpha, 12 alpha-trihydroxy-27a, 27b-dihomo-5 beta-cholestane-26,27b-dioic acid ...

2007
Peter D. Harty

This report examines how to sample airborne radioactivity with minimal complexity and time expenditure, using conventional high-volume samplers in combination with alpha-particle spectrometry. The use of alpha spectrometry provides compensation for radon/thoron decay products collected on the filter paper of the sampler, leading to a seven-fold improvement in measurement sensitivity of artifici...

Journal: :The Biochemical journal 1994
C A Redman J E Thomas-Oates S Ogata Y Ikehara M A Ferguson

The glycosylphosphatidylinositol membrane anchor of human placental alkaline phosphatase was isolated by exhaustive proteolysis followed by hydrophobic interaction chromatography. The resulting glycosylphosphatidylinositol-peptide was subjected to compositional analysis and chemical and enzymic modifications. The neutral-glycan fraction, prepared by dephosphorylation followed by HNO2 deaminatio...

Journal: :Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2019

Journal: :Journal of environmental monitoring : JEM 2007
Ian W Oliver Margaret C Graham Angus B MacKenzie Robert M Ellam John G Farmer

Depleted uranium (DU) weapons testing programmes have been conducted at two locations within the UK. An investigation was therefore carried out to assess the extent of any environmental contamination arising from these test programmes using both alpha spectrometry and mass spectrometry techniques. Uranium isotopic signatures indicative of DU contamination were observed in soil, plant and earthw...

Journal: :The Journal of biological chemistry 2010
Stephanie H Stalnaker Sana Hashmi Jae-Min Lim Kazuhiro Aoki Mindy Porterfield Gerardo Gutierrez-Sanchez James Wheeler James M Ervasti Carl Bergmann Michael Tiemeyer Lance Wells

The main extracellular matrix binding component of the dystrophin-glycoprotein complex, alpha-dystroglycan (alpha-DG), which was originally isolated from rabbit skeletal muscle, is an extensively O-glycosylated protein. Previous studies have shown alpha-DG to be modified by both O-GalNAc- and O-mannose-initiated glycan structures. O-Mannosylation, which accounts for up to 30% of the reported O-...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید