Results 211 to 220 of about 11,026 (264)

A method based on ¹⁰B isotope tracer for seepage detection in salt lakes. [PDF]

RSC Adv
Hu J, Deng Y, Wang L, Wang H, Zhao L, Lu L, Liu Z, Wang Q, Shi M.   +8 more
europepmc   +1 more source

Radiological risks in Nasser lake water and their health and environmental implications. [PDF]

Sci Rep
Ali K, Abu-Taleb A, Abbady AE, Harb S.
europepmc   +1 more source

Isotopic studies of potassium metabolism in diabetes.

The Journal of clinical investigation, 2003
J K, AIKAWA, J H, FELTS, G T, HARRELL
openaire   +1 more source

Argon-based geochronology: advances, limitations and perspectives. [PDF]

Natl Sci Rev
Chang SC, Shi W, Wang Y, Wang F.
europepmc   +1 more source

Hydrogeochemical conceptualization of granitic-urban area for sustainable water resource management: a case study of Daejeon, Korea. [PDF]

Environ Geochem Health
Ko HN, Kim J, Lee KK.
europepmc   +1 more source

Optimizing positron emission tomography for accurate plant imaging using Monte Carlo simulations to correct positron range effects. [PDF]

Sci Rep
Saaidi R, Tayalati Y, El Fatimy A.
europepmc   +1 more source

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The Radioactive Isotope of Potassium

Physical Review, 1937
The isotopes of potassium were separated by means of a high intensity mass spectrometer and the beta-ray activity of each isotope was measured with a thin-walled Geiger-Müller counter. The measurements show that K40 is responsible for both of the known bands of beta-particles.
W. R. Smythe, A. Hemmendinger
openaire   +2 more sources

Potassium isotopic fractionation during clay adsorption

Geochimica et Cosmochimica Acta, 2021
Clay adsorption is a critical process responsible for the mobilization and cycling of potassium (K) on Earth's surface. Recent studies emphasized the potential of using stable K isotopes (δ41K) to understand chemical weathering. However, the direction, degree, and mechanism of K isotopic fractionation linked to clay K uptake during chemical weathering ...
Li, W., Hu, Y., Teng, F.-Z., Hu, Y., Liu, X.-M.   +4 more
openaire   +1 more source

Enrichment of Potassium Isotopes with Macrocyclic Polyether Potassium Complexes

Helvetica Chimica Acta, 1982
AbstractEnrichment of the potassium isotopes is achieved by means of the chemical exchange reaction Where L represents a macrocyclic polyether. Dicyclohexyl‐18‐crown‐6 ((cis‐syn‐cis)‐isomer) was investigated. The single stage‐separation factor a=1+ε was determined according to the method of Glueckauf from the elution curve and iso‐topic assays.
Beat Schmidhaltcr, Ernst Schumacher
openaire   +1 more source