摘要:
A method of monitoring compliance of a patient that has been placed on a medication maintenance program with a prescribed medication dosage by determining a normalized urine medication concentration. An unadulterated urine sample is obtained from the patient. The urine medication concentration and urine specific gravity are measured. The normalized urine medication concentration is calculated as a function of the measured medication concentration in the urine and the urine specific gravity. The calculated normalized urine medication concentration is compared with an expected medication concentration value for the patient for the maintenance program prescribed to determine any significant differences therebetween as an indication of noncompliance. Alternatively, a urinary-parameter normalized urine medication concentration is calculated as a function of the measured medication concentration in the urine, the urine specific gravity and at least one selected pharmacokinetic parameter of the medication. The calculated urinary-parameter normalized urine medication concentration is compared with an expected medication concentration value for an average compliant patient for the maintenance program prescribed to determine any significant differences therebetween as an indication of noncompliance.
摘要:
Bei einem Verfahren für den Nachweis von organischen Dämpfen und Aerosolen mittels Oberflächenionisation, insbesondere Aminen, Hydrazinen und stickstoffhaltigen Verbindungen, die aus Bränden entstehen, kondensieren die betreffenden Moleküle auf einer leitenden Vorrichtung (4). Diese wird durch Strompulse durch eine resistive Heizung (5) erhitzt, wodurch die kondensierten Moleküle thermisch ionisiert werden. Die erzeugten Ionen werden von einer Kollektorelektrode (9) aufgefangen und der resultierende Ionenstrompuls von einer Transimpedanzschaltung (15) verstärkt. Der Strompuls für die Erhitzung der leitenden Vorrichtung (4) dauert so lange an bis der Ionenstrompuls abgeklungen ist und die leitende Vorrichtung (4) von Restsubstanzen befreit ist. Dadurch bleibt die leitende Vorrichtung frei von Verschmutzung und verfügt über eine längere Lebensdauer. Die zeitgemittelte Leistungsaufnahme des Verfahrens beträgt weniger als 2 mW. Die leitende Vorrichtung (4) weist eine resistive, mäanderförmige Heizung (5) auf die als dünne Schicht auf einer Si 3 N 4 -Membran (3) aufgebracht ist, die über einer Öffnung (2) eines unterätzten Silizium-Chips (1) liegt. In einer weiteren Ausführungsform der leitenden Vorrichtung (4) ist auf der resistiven Heizung (5) eine durch eine Isolierschicht (7) beabstandete leitende Schicht (8) angeordnet.
摘要:
Die Erfindung betrifft ein Verfahren zur kolorimetrischen Bestimmung von NADH mittels enzymatischer Oxidation mit Benzylalkoholdehydrogenase unter Reduktion einer aromatischen Nitrosoverbindung der Formel I zu einem farbigen Chinondiimin
in der R' Wasserstoff, Halogen, Hydroxy, Alkoxy, Aryloxy, Alkylthio, Arylthio, Alkyl oder Alkylen gegebenenfalls substituiert durch Carboxy, PO 3 H 2 , Dialkylphosphinyl oder SO 3 H, Amino, gegebenenfalls ein- oder zweifach substituiert durch Alkyl, das wiederum gegebenenfalls durch Hydroxy, PO 3 H 2 , SO 3 H oder Carboxy substituiert sein kann, bedeutet und R einen durch Elektronenkonjugation mit einem Chinondiimin-System farberzeugenden Rest bedeutet. Weiter betrifft die Erfindung ein entsprechendes Mittel sowie eine chromogene Nitrosoverbindung der Formel I sowie deren Verwendung zur enzymatischen kolorimetrischen Bestimmung eines Analyten
摘要:
In a method for detecting particular classes of explosives, a suspect sample is subjected serially to reagents (1), (2), (3) and (4) in the liquid phase, the reagents after the first being applied only if no color reaction has been obtained in the preceding test, while reagents (2) and (3) only are applied in presence of the preceding reagent(s). (1) is an alkaline solution of a diazotizable aminoaromatic azo-dye precursor (for nitroaromatic explosives). (2) is a strongly acidic reagent containing a nitrate to nitrite ion reducing agent and a diazo-coupler (for organic nitrates and nitramines). (3) is zinc powder suspended in a liquid comprising at least one water-miscible solvent (for inorganic nitrates). (4) is an aniline salt in a homogeneous strongly acidic solution including a water-miscible organic solvent (for chlorates and bromates). The invention includes also a test kit, as well as reagents (3) and (4), for use in the method.
摘要:
A method and associated materials including test kits for detecting and measuring the presence and amount of aminoguanidine and its analogs in biological samples is disclosed. Biological samples may include plasma, urine or tissue, and the present method may be used to determine the activity and effect of aminoguanidine and its analogs, particularly to the extent that such materials are useful as agents to prevent advanced glycosylation of proteins. The present invention extends to a new drug assay, suitable test kits, and to the assessment of kidney function and the potential to aid in the diagnosis of underlying pathologies where kidney dysfunction is a symptom.
摘要:
New 9-anthrylalkyl compounds having the general formula wherein R is hydrogen or an alkyl group, whereby, however, not more than one of the groups R is an alkyl group; R₁ is hydrogen, lower alkyl, halogen or nitro; n is an integer of from 1 to 7, whereby ,however, the total number of carbon atoms in the group -CHR-(CHR) n - does not exceed 8; and X is halogen, an azide group or a succinimidyl group. The new compounds are prepared from 9-anthrylalcohols which are reacted with a compound X-CO-X wherein X is a halogen, and then optionally with compounds giving azide or succinimidyl group. The compounds are used as derivatization reagents for separation and detection purposes. Intermediates for preparation of the above defined 9-anthrylalkyl compounds wherein one R is an alkyl group are 9-anthrylalcohols with the group -CHR-(CHR) n -OH, wherein one R is an alkyl group.
摘要:
Catecholamines in a living body fluid are analyzed by a process comprising: reacting a living body fluid sample with a boron compound of the formula,
wherein R is hydroxyl, aryl or alkyl, to form a complex of the boron compound with a catecholamine, deproteinizing the reaction solution containing the complex, and quantitatively determining the complex. The process makes it possible to measure catecholamines with a high recovery ratio and high accuracy, since catecholamines in a living body sample such as plasma, urine, etc., can be made insusceptible to the influence of the other substances in the living body samples, e.g. oxidation, by forming the catecholamines into a complex with a boron compound.