Abstract: The present invention provides methods for utilizing blended compositions of acetonitrile and toluene as organic wash solvents in the production of a synthetic oligonucleotide, the blended compositions producing higher synthetic oligonucleotide yields than a pure acetonitrile wash solvent. The method also provides a process for removing one or more impurities from the acetonitrile and toluene containing wash solvent received as a waste stream from the oligonucleotide synthesis process. The process includes adding at least one of an iodine reactive compound, a sulfur reactive compound and/or an acidic reactive compound to the waste stream, and fractionating the waste stream. The fractionation produces an overhead fraction and a bottom fraction where the overhead fraction includes the acetonitrile and the toluene, and the bottom fraction includes the one or more impurities.

Abstract: A medical device includes: at least one input device; at least one output device; at least one operating component; and a control unit. The control unit has data access to at least one file pertaining to the medical device, wherein text passages or graphics of the at least one file pertaining to an operating component are selectable. The control unit is configured to, after selection of a text passage or a graphic, cause at least one operating parameter of the operating component and/or at least one output variable that is created by the operating component to be read out as output, and/or facilitate input of an adjustable operating parameter for the operating component.

Abstract: A medical device includes: at least one input device; at least one output device; at least one operating component; and a control unit. The control unit has data access to at least one file pertaining to the medical device, wherein text passages or graphics of the at least one file pertaining to an operating component are selectable. The control unit is configured to, after selection of a text passage or a graphic, cause at least one operating parameter of the operating component and/or at least one output variable that is created by the operating component to be read out as output, and/or facilitate input of an adjustable operating parameter for the operating component.