您搜索了: betulin (英语 - 丹麦语)

betulin:
betulin:

betulin (internal standard)
betulin (intern standard)

betulin of at least 99 % purity
betulin, mindst 99 % renhed

solutions of betulin in diethyl ether (4.4)
betulinopløsninger i diethylether (4.4)

the retention time for betulin should be approximately 24 minutes.
retentionstiden for betulin skal være ca. 24 minutter.

incomplete silylation of betulin is indicated by a second peak close to that of betulin.
ved ufuldstændig silylering ses en top tæt ved betulintoppen.

the concentration of betulin solution used for sitosterol determination should be 1,0 mg/ml
betulinopløsningen til bestemmelse af sitosterol skal være af en koncentration på 1,0 mg/ml.

inject a further 1 μl of silylated standard solution to determine the response factors with reference to betulin.
herefter indsprøjtes yderligere 1 μl silyleret standardopløsning for at bestemme responsfaktorerne for betulin.

= (area of the sterol peak in the sample)/(area of the betulin peak in the sample)
= (arealet af steroltoppen i prøven)/(arealet af betulintoppen i prøven)

since no biologically relevant levels of betulin were found in patients, no further studies related to distribution, biotransformation and elimination were performed.
da der ikke fandtes relevante koncentrationer af betulin hos patienterne, blev der ikke udført yderligere forsøg vedrørende fordeling, biotransformation og elimination.

= (average area of the sterol peak in the standard)/(average area of the betulin peak in the standard)
= (gennemsnitsarealet af steroltoppen i standardopløsningen)/(gennemsnitsarealet af betulintoppen i standardopløsningen)

determine the area of the sterol peak (stigmasterol and sitosterol) and betulin peak in the sample and calculate r2:
arealet af steroltoppen (stigmasterol og sitosterol) og betulintoppen i prøven bestemmes, og r2 beregnes således:

the sterols are transformed into trimethyl-silyl ethers and are analysed by capillary-column gas chromatography with reference to an internal standard/betulin.
sterolerne omdannes til trimethylsilylethere og analyseres ved gaskromatografi i en kapillarkolonne med betulin som intern standard.

based on data from three clinical studies with a total of 280 patients, application of episalvan gel to open wounds did not lead to betulin plasma levels higher than natural background-levels originating e.g. from nutritional sources.
på grundlag af data fra tre kliniske studier med i alt 280 patienter medførte påføring af episalvan gel på åbne sår ikke højere plasmakoncentration af betulin end det naturlige baggrundsniveau fra f.eks. ernæringen.

1 g gel contains: 100 mg extract (as dry extract, refined) from birch bark from betula pendula, betula pubescens as well as hybrids of both species (equivalent to 0.5-1.0 g birch bark), corresponding to 72-88 mg betulin.
1 g gel indeholder 100 mg ekstrakt (som tørekstrakt, raffineret) af betula pendula roth., betula pubescens ehrh. eller hybrider heraf, cortex (birkebark) svarende til 0,5-1 g birkebark, svarende til 72-88 mg betulin.