Abstract: A process for preparing a phosphodiester of the formula: ##STR1## is described that involves (1) reaction of a first alcohol with phosphorous trichloride to form a phosphorodichlorodite, (2) reaction of the phosphorodichlorodite with an amine to form a phosphorodiamidite, (3) reaction with a second alcohol (which may be the same as the first alcohol) to form a phosphoramidite diester, and finally, (4) hydrolysis and oxidation of the phosphoramidite to form the phosphodiester. R and R1 may represent aliphatic, aromatic, heterocyclic, peptidic, peptoid, deoxyribo- or ribonucleotidic or nucleosidic, or organic chelating moieties.

Abstract: An electrical parameter analyzer analyzes samples of electrical power by executing program instructions stored on a PCMCIA compatible program card. The analyzer has a central processing unit including a microprocessor which reads the program card and passes program instructions to an acquisition control processor and an input/output controller, each of which has its own microprocessor. A series of values for a characteristic parameter of the electrical power are generated by the acquisition control processor, and these values are printed under control of the input/output controller upon request of the central processing unit.