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5

"Differential" is a compact way of saying "difference between the" (or its equivalent). For instance, in your first example, where the author writes "Chromatographic separations result from the differential interactions of the enantiomers...", what's meant is "Chromatographic separations result from the difference between the interactions of the [two] ...


0

Too late to help the OP, but I noticed that biophysics wasn't mentioned. The OP professed an "ineptitude for biochemistry". Given that they are presumably comfortable with chemistry (wanting a biological field related to chemistry), I'd guess there's a chance the aversion to biochemistry comes from its enormous complexity, and the attendant enormous body of ...


2

Recently I had to read up on HPLC-MS technique and I encountered D.H./DH several times as an acronym for dehydrogenase, also, like in the quoted section, in the context of parabens analysis with HPLC. For example, DH is explicitly defined as an acronym for dehydrogenase in Kastner's Protein liquid chromatography [1, p. 5] or in the paper by Zimmerling et al....


4

I suspect this is very likely a sentence adapted from of one of the methods from the Russian State Pharmacopoeia (RSP), which has numerous entries for the adverb «потенциометрически» (Eng. “potentiometrically”). For instance, there is a nearly identical match in the normative section for the preparation of acetate buffer solution, ОФС.1.3.0003.15-1.27 ...


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