Florence test

Two methods commonly used to test for seminal stains are the acid phosphatase test and the Florence test. Both tests were developed on the basis of the reaction of an introduced compound with substances that are present in seminal fluid. Positive results for these tests are either the formation of a characteristic color or the formation of specific crystals. Since the substances tested are also present in other body fluids and in vegetable juices, the specificity of these tests has been questioned (lh). 

Electrochemical methods have been used for determinations of species of elements in natural waters. Of the many electrochemical techniques, only a few have proved to be useful for studies of speciation in complex samples, and to possess the sensitivity required for environmental applications. The greatest concern is the measurement of the toxic fraction of a metal in an aqueous sample. The definition of a toxic fraction of a metal is that fraction of the total dissolved metal concentration that is recognised as toxic by an aquatic organism. Toxicity is measured by means of bioassays. Elowever, a universally applicable bioassay procedure cannot be adopted because the responses of different aquatic species to metal species vary. Nevertheless, bioassays should be used as means of evaluation and validation of speciation methods. A condition is that the test species (of the bioassay) should be very sensitive to the metals being studied so as to simulate a worst case situation (Florence, 1992). 

Testing for the Years 2000. 2nd EUROLAB Symposium Proceedings. Florence, Italy, April 25-27... 

Pantanowitz L, Florence RR, Goulart RA, et al. Trichomonas vaginalis PI 6 immunoreactivity in cervicovaginal Pap tests A diagnostic pitfall. Diagn Cytopathol. 2005 33 210-213. 

American biochemist Florence Seibert, who developed the procedure that isolated the crystalline tuberculin derivative, which is used in the standard TB test. 

Tabatt, K., Olbrich, C., and Muller, R.H., Cytotoxicity testing of solid lipid nanoparticles on RAW 264.7 macrophages, Proc. 4th World Meeting Pharm. Technol. Biop-harm, Pharm. Biotechnol, Florence, 699, 2002. 

All N tabacum plants evaluated for insect resistance and cuticular chemistries were grown under field conditions normally used for the production of flue-cured tobacco at the Clemson University Pee Dee Research and Education Center, Florence, SC the Crops Research Laboratory, Oxford, NC and the University of Georgia Coastal Plain Experiment Station, Tifton, GA. Other Nicotiana species were evaluated at Ojdbrd, NC or Tifton, GA. From 1984-1987 70 accessions of 64 Nicotiana species were planted to evaluate their effects on tobacco budworm and hornworm oviposition in field plots and in choice tests versus NC 2326 in cages (20). In 1985 and 1986 the different Nicotiana species were grown in the field and cuticular chemical extracts were obtained and analyzed in 1985. Field plots were also screened for natural infestations of insect pests. 

Choline can be identified by a microscopic crystal test. The aqueous extract is treated with the Florence iodine reagent (6.6 g potassium iodide and 10.6 iodine dissolved in 120 ml distilled water). Characteristic rhombic crystals are observed. 

Bracci, S., Falletti, F., Matteini, M. Seopigno, S. (2004). Exploring David, diagnostic Test and State of Art conservation, Florence, Published by Giunti. 

D Knotkova and L Vrobel, ISOCORRAG—The International Testing Program within ISO/TC 156AVG4. Proceedings 11th International Corrosion Congress, Florence, Italy, 1990, p 5.581. 

An automatic gyrocompass successfully tested at the Galileo workshops in Florence... 

Hjortaas, T. G., FUrll, Ch., Enstad, G. G., Full scale silo tests of the cone in cone concept for obtaining mass flow. Proceedings of the First European Congress on Chemical Engineering, Florence May 4-7, Vol. 2,923-926 (1997)... 

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