Iodine and creatinine testing in urine dried on filter paper
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چکیده
منابع مشابه
Iodine and creatinine testing in urine dried on filter paper.
Iodine deficiency is a world-wide health problem. A simple, convenient, and inexpensive method to monitor urine iodine levels would have enormous benefit in determining an individual's recent iodine intake or in identifying populations at risk for iodine deficiency or excess. Current methods used to monitor iodine levels require collection of a large volume of urine and its transport to a testi...
متن کاملProcedures for testing urine specimens dried on filter paper.
METHOD for collection of urine from infants onto squares of filter paper was described as part of a program for early detection of phenylketonuria (1). These urine papers have proved extremely versatile as an aid to testing urine for a number of substances that are excreted as a result of certain metabolic defects, all easily detectable by simple means. Phenylpyruvic acid, phenylalanine, and oh...
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Urine specimens dried on filter paper squares were obtained from 700 mentally retarded children. A microbiological assay was used to screen the specimens for the presence of valine, leucine, and isoleucine. Three specimens gave positive tests for all three amino acids. A generalized aminoaciduria was observed in two specimens, and in the third, elevation of valine and leucine/isoleucine was con...
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A rapid, sensitive, and specific method for quantification of orotic acid from dried filter-paper urine samples is described. The method involves stable isotope dilution with 1,3-[15N2]orotic acid analysis by gas chromatography-mass spectrometry. The assay is sufficiently sensitive to be used with solvent extraction techniques commonly used for urinary organic acid analysis. Extraction efficien...
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Lead is a common toxic metal in our environment. It is present at high concentrations (up to 600 g/kg) in some paints manufactured before 1970. Some artistic ceramic products and leaded glass contain substantial amounts of lead that can be leached by weak acids such as vinegar and fruit juices. Lead is also found in dirt from areas adjacent to buildings painted with lead-based paints and on hig...
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ژورنال
عنوان ژورنال: Analytica Chimica Acta
سال: 2013
ISSN: 0003-2670
DOI: 10.1016/j.aca.2012.12.021