Maybe the character changed significantly during its simplification. However, this method will definitely help you a lot to make connections between various components and characters.
Yes, you are right there is different pinyin for some of the radicals. This is because some are the pinyin for the dictionary radical name and some are the pinyin for what the stroke is called. For example with丨the radical is gǔn and shù is the name of a stroke. Gǔn as a dictionary radical and is a homograph of the character stroke shù, which just means vertical (line). Thank you for pointing this out, to help other learners such as yourself we will update the blog to include both of the pinyin.
Watson's book was published in 1983, perhaps too late for Johnston to bring its insights to bear fully on her own thesis. I am not suggesting anything major; but Watson makes very clear, for example, that Billy Robert's remarks about socialism in The Valley of the Moon do not carry London's message. In other words, Watson provides a ready check against over-simplification in matters that are somewhat peripheral to Johnston's main thrust. But even as I admire Watson's book, at times it seems almost too dense, and in his analysis all but the most appreciative reader of London might get bogged down. Johnston gets to and largely stays with her main point. She is at once informative, convincing, and balanced in a way that others who have written on London's radicalism have not been. London scholars and enthusiasts will certainly refer to this book as, I think, will many more general readers as well.
The di(trideuteromethyl) analog of DMPO with its mass shift of +6 compared to unlabeled DMPO can be used for dual spin-trapping mass spectrometry experiments. Here, spin traps labeled with stable isotopes (2H, 15N or 13C) are utilized to simplify the interpretation of mass spectrometry experiments [2,3]. With equal amounts of the labeled and unlabeled spin trap present, adducts of the trapped radicals will appear as ion pairs in the mass spectrum (with the mass differences depending on the isotopes incorporated in the spin trap and on the charge state of the ion). This facilitates and clarifies the identification of radical-derived analytes.
ESR spin trapping of hydroxyl radicals with 100 mM 15N- or di(trideuteromethyl) DMPO. Radicals were generated with a Fenton System (100 μM FeSO4, 200 μM H2O2 in 100 mM phosphate buffer, pH 7.4, with 200 μM DTPA). A strong signal was detected with 15N-DMPO (a) as well as with di(trideuteromethyl) DMPO (d). No significant signal was detected without H2O2 (b and e) or Fe2+ (c and f). 2b1af7f3a8