Development of a New Non-dispersed Infrared Analyzer for 13C Breath Test.
نویسندگان
چکیده
منابع مشابه
Nondispersive infrared spectrometry: a new method for the detection of Helicobacter pylori infection with the 13C-urea breath test.
Nondispersive infrared spectrometry (NDIRS) was used to detect Helicobacter pylori infection with the 13C-urea breath test. The results were compared with those of standard isotope ratio mass spectrometry (IRMS). Both methods accurately distinguished between H. pylori-positive and H. pylori-negative individuals. The results demonstrate that NDIRS technology is accurate and therefore of equal va...
متن کاملA new method to determine a well-dispersed subsets of non-dominated vectors for MOMILP problem
Multi-objective optimization is the simultaneous consideration of two or more objective functions that are completely or partially inconflict with each other. The optimality of such optimizations is largely defined through the Pareto optimality. Multiple objective integer linear programs (MOILP) are special cases of multiple criteria decision making problems. Numerous algorithms have been desig...
متن کاملA New Development of Electronic Descriptors for Simulation of 13C Chemical Shifts
The 13C chemical shifts for a series of compounds which includes carboxylic acids, aldehydes, ethers, ketones and hydrocarbons were simulated by using the parametric techniques. The observed chemical shifts were related to numerically encoded structural parametes called descriptors. Two new electronic descriptors were added to the previous descriptors. Ploting of experimental ver...
متن کاملGender affects 13C-ketoisocaproic acid breath test.
BACKGROUND AND AIMS 13C-Ketoisocaproic Acid Breath Test (13C-Kica-BT) has been proposed to assess mitochondrial function. Aim of this study is to evaluate whether gender affects mithocondrial oxidation by means of 13C-Kica-BT in healthy subjects in basal conditions and after an acute oxidative stress induced by ethanol. METHODOLOGY 50 healthy volunteers were given 1 mg/kg of 13C-Kica together...
متن کاملLow dose capsule based 13c-urea breath test compared with the conventional 13c-urea breath test and invasive tests.
CONTEXT One of the limitations of 13C-urea breath test for Helicobacter pylori infection diagnosis in Brazil is the substrate acquisition in capsule presentation. OBJECTIVES The purpose of this study was to evaluate a capsule-based 13C-urea, manipulated by the Pharmacy Division, for the clinical practice. METHODS Fifty patients underwent the conventional and the capsule breath test. Samples...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: RADIOISOTOPES
سال: 2002
ISSN: 1884-4111,0033-8303
DOI: 10.3769/radioisotopes.51.237