https://www.selleckchem.com/pr....oducts/gilteritinib-
This article reports a simple, compact, and cost-effective electron spin resonance (ESR) spectrometer for monitoring automobile lubrication oil degradation. Lubrication oil degradation strongly correlates with the concentration of stable free radicals caused by hydrocarbon chain decomposition due to heating. For the prototype spectrometer, the amplitude shift in a marginal oscillator output detects ESR absorption in a sample. The spectrometer's spin sensitivity of 2.3 × 1014 spins for a used oil sample was achieved using th
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