Elo Harald Hansen

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PURPOSE This study measured the effect of hyperbaric oxygen (HBO) treatment on transmucosal oxygen tension in irradiated human oral mucosa. PATIENTS AND METHODS Ten patients received 30 dives of HBO as part of their treatment for mandibular osteoradionecrosis. A noninvasive, nonheated oxygen electrode was used to measure the tissue surface transmucosal(More)
A novel and miniaturized micro-sequential injection bead-injection lab-on-valve (microSI-BI-LOV) fractionation system was developed for on-line microcolumn soil extraction under simulated environmental scenarios and accurate monitoring of the content of easily mobilisable hexavalent chromium in soil environments at the sub-low parts-per-million level. The(More)
A new concept is presented for selective and sensitive determination of trace metals via electrothermal atomic absorption spectrometry based on the principle of bead injection (BI) with renewable reversed-phase surfaces in a sequential injection-lab-on-valve (SI-LOV) mode. The methodology involves the use of poly(styrene-divinylbenzene) beads containing(More)
Sequential injection microcolumn extraction (SI-MCE) based on the implementation of a soil-containing microcartridge as external reactor in a sequential injection network is, for the first time, proposed for dynamic fractionation of macronutrients in environmental solids, as exemplified by the partitioning of inorganic phosphorus in agricultural soils. The(More)
A series of 102 patients with total subcutaneous rupture of the achilles tendon treated surgically from 1944 to 1972 is presneted. All patients were treated early after the acute event, and the diagnosis was made on clinical examination. Group I comprises 54 patients treated over the first part of the period by simple tendon suture, and group II comprises(More)
Acute vasodilatation was produced by infusion of prostaglandin E1 (PGE1) in the femoral artery in 6 patients with occlusive arterial disease of the legs and in 3 normal subjects. The effect on blood flow and on blood pressure was measured at different segments of the leg with the strain gauge technique, isotope clearance technique, and photoelectric(More)
A multi-point assay for determination of the activity of amyloglucosidase (AMG) by FIA and SIA is described. The assay is based on two consecutive reactions that are mutually incompatible. Both the FIA and SIA procedures allow these two reactions to be completely separated, whereby each of the processes can be individually optimized with respect to(More)
The concept of a generic FIA system is described that allows multi-points assays of enzyme activities, that require a coupled chemical derivation reaction for detection. The enzymatic degradation procedure and the ensuing chemical indicator reaction are completely separated, which inherently allows each of these processes to be individually optimized with(More)