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Biomedical subjects

I Bruheim

Publications and source records attributed to I Bruheim.

4 recordsLinked to original sources
PubMed2000

Purity testing of organometallic catalysts by packed capillary supercritical fluid chromatography.

A packed capillary column supercritical fluid chromatography system with flame ionization detection has been used for purity testing of candidates for homogeneous catalysis such as methyl tricarbonyl pentamethylcyclopentadienyl tungsten [Cp*W(CO)3Me], methyl tricarbonyl cyclopentadienyl tungsten [CpW(CO)3Me], tetramethyl pentamethylcyclopentadienyl iridium (Cp*IrMe4), trimethyl (1,4,7-trimethyl-1,4,7-triazocyclononane) rhodium (CnRhMe3), trimethylphosphine hydride dicarbonyl cyclopentadienyl molybdenum [eta5-CpMoH(CO)2PMe3] and triphenylphosphine hydride dicarbonyl cyclopentadienyl molybdenum [eta5-CpMoH(CO)2PPh3]. A mass limit of detection of 240 pg was found for eta5-CpMoH(CO)2PMe3 when using a 60-nl injection volume and pure CO2 as mobile phase on a 5 microm Kromasil C18 column. The stability of the catalysts in solution has been examined. After 24 h more than 70% of eta5-CpMoH(CO)2PMe3 and 50% of eta5-CpMoH(CO)2PPh3 had decomposed. Due to the instability of the compounds the purity testing had to take place rapidly after sample dissolution.

Catalysis↗
PubMed1989

[Common bile duct calculi after biliary surgery. Postoperative endoscopic papillotomy is the solution].

In 37 patients with retained bile duct stones after operation using a T-tube, endoscopic papillotomy (EPT) was used as the therapeutic procedure. In 27 patients the stones were successfully removed in one session. Eight patients needed two to six endoscopic attempts before the stones could be removed. In two patients we failed to solve the problem endoscopically; in both patients we could remove the stone through the T-tube channel using a Dormia basket. The endoscopic method of removing retained bile duct stones is safe and quick. Most of the patients can be discharged from the hospital the following day.

Adult↗
PubMed1986

Nonspecific ulcer of the caecum. Reports of 3 cases.

Benign ulcer of the caecum may mimic acute appendicitis or cancer of the colon. The aetiology is unknown. Most patients are operated on, and the pathologist's report may be unexpected. The ulcer may be diagnosed at colonoscopy and conservatively treated. Diseases which must be excluded are cancer and specific inflammatory, infectious and parasitic conditions.

Adult↗