Flow injection analysis with membrane separation; Determination of ammonia in blood and urine.
نویسندگان
چکیده
منابع مشابه
"Reagentless" flow injection determination of ammonia and urea using membrane separation and solid phase basification.
Flow injection analysis instrumentation and methodology for the determination of ammonia and ammonium ions in an aqueous solution are described. Using in-line solid phase basification beds containing crystalline media. the speciation of ammoniacal nitrogen is shifted toward the un-ionized form. which diffuses in the gas phase across a hydrophobic microporous hollow fiber membrane into a pure-wa...
متن کاملcomparison of blood flow velocity changes in posterior cerebral artery measured with transcranial doppler sonography in migraineurs with visual aura and normal persons after photostimulation
چکیده ندارد.
15 صفحه اولFlow Injection Spectrophotometric determination of Doxorubicin Hydrochloride in Urine samples
A simple and fast FI colorimetric procedure for determination of doxorubicin hydrochloride (DXH) was proposed. It is based on the redox reaction between iron (III) and DXH, resulting in an intensely red colored complex in the presence of 1, 10-orthophenantroline which can be followed by spectrophotometric measurement at λmax= 510 nm. This is an automatic way to determine doxorubicin hydrochlori...
متن کاملDetermination of free catecholamines in urine by tandem affinity/ion-pair chromatography and flow injection analysis.
BACKGROUND A system was developed for the simultaneous measurement in urine of free catecholamines (i.e., dopamine, norepinephrine, epinephrine) and creatinine (i.e., an indicator of urine output and volume). This method was based on the use of tandem affinity/ion-pair HPLC and flow injection analysis. METHODS The free catecholamines were extracted directly from urine by using an on-line phen...
متن کاملthe stady and analysis of rice agroclimatology in lenjan
the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1984
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.33.10_505