منابع مشابه
Automated turbidimetric bioassay readout instrument using a multiple flow-cell system.
An instrument has been developed which permits the automatic quantitation of the turbidities of microbiological assay samples. Assay tubes were fed to the instrument at the end of the incubation period. The turbidity readings were automatically converted to digital data which were printed on International Business Machines (IBM) cards and from which potencies were calculated by an IBM computer....
متن کاملTurbidimetric determination of haptoglobin.
A specific, accurate and simple determination of haptoglobin is described with an antiserum against the antigenic determinants of the three haptoglobin phenotypes 1-1, 2-1 and 2-2. Antihaptoglobin is the determining factor in the formation of an antigen-antibody complex with maximal light absorption properties. Haptoglobin concentration is expressed as hemoglobin binding capacity. For the three...
متن کاملTurbidimetric procedure for determination of lipase activity.
A method is described for turbidimetric assay of Iipase activity. The substrate is a two-phase emulsion composed of a fairly homogenous dispersion of micelles of either triolein or olive oil. The de-emulsification of the substrate after lipase addition is a true measure of the enzymatic activity. Turbidity change is related to amount of the enzyme by use of a commercial standard, purified lipas...
متن کاملImproved turbidimetric assay for lysozyme in urine.
I describe an improved turbidimetric assay for lysozyme in urine. This method is simple, reproducible, linear over a 100-fold concentration range, sensitive to concentrations as low as 10 micrograms/L, and only commercially available products are required. Evaluation of urinary lysozyme concentration with this assay demonstrated a within-run and between-run CV of 9.9% and 4.8%, respectively, fo...
متن کاملCarbenicillin resistance of Pseudomonas aeruginosa.
Four strains of Pseudomonas aeruginosa obtained from clinical isolates which are carbenicillin resistant were studied to find the cause(s) of resistance to this beta-lactam antibiotic. The electrophoresis patterns of the four strains (PH20610, PH20815, PH4011, and PH4301) were found to be different from those of a wild-type strain, P. aeruginosa NCTC 10662, and appeared to lack penicillin-bindi...
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ژورنال
عنوان ژورنال: Antimicrobial Agents and Chemotherapy
سال: 1973
ISSN: 0066-4804,1098-6596
DOI: 10.1128/aac.3.3.364