Fritz Feigl
Fritz (Friedrich) Feigl, Austrian-born Jewish Brazilian analytical chemist and microchemist (Wien 15 May 1891 – Rio de Janeiro 23 January 1971) ACHIEVEMENTS Regarded as one of world’s most notable analytical chemists of all the times Authored over 600 publications and 10 books First related specific and selective properties to existence of certain groupings in molecule Idealized and created spot tests in 1920s Elaborated thousand spot tests for detecting organic and inorganic substances Introduced masking and unmasking concepts in selectivity of reactions (1955) Defined with accuracy the concepts of limit of identification and limit of dilution Distinguished specific reactants from selective reactants being the concept adopted by IUPAC Introduced with Stern capilar effect of filter paper in identifying of components by drop reactions (1921) Provided original theoretical foundation for the analytical use of organic reagents Developed organic reactants for inorganic analysis Developed luminol Introduced microscale in chemistry learning Enunciated classification principles and rules to search for new tests and analytical reagents With A. Schaeffer developed a method for extracting caffeine from coffee and maté plants via direct sublimation A procedure for solubilization of phosphate from phosphorous bauxite With Krumholz & Hamburg proposed sodium sulfite as a reducing agent and as a buffer With P.W. West. Test for selenium based on catalytic effect. Bol. Dept. Nac. Prod. Mineral 24:13-22, 1946 With Nicolau Brailea developed a simple industrial process using phosphorous bauxites to produce phosphate fertilizers (1942) Role of organic reagentes in chemistry of specific, selective and sensitive reactions. Anal. Chem. 21:298-1313, 1949 Introduced the use of sodium rhodizonate to lead research Isolated new complex cyanides Applied dipyridyl to the identification and determination of cadmium With P. E. F. Barbosa. A new procedure for detecting acidity. Industrial and Engineering Chemistry-Analytical Edition. 14:6, With Coriolano J. da Silva. Uma reação de identificação de combinações básicas insolúveis n’agua (1941) With O. Ribeiro. Uma micro reação para a vitamina B1. Rev. Soc. Bras. Quim. 11:3-7, 1942 With E.K. Libergott. Test for elenmental arsenic and sulfur based on the formation of arsenic sulfide. Zeitschr. fur Angew. Chimie 233(6):401, 1968 With I. Ciornai, A. Espínola, P.W. West, H.E. Feigl et al. News methods of qualitative and quantitative analyses of selenium, titanium, chromium, cobalt and tin. Bol. Depart.Nac. Prod. Mineral 24 (1946-8) With C.R. Hesg. Novos sais complexos de cianeto de paládio com bases orgânicas (1949) With H.E. Feigl. Novo método de identificação de cianetos, baseado no desmascaramento de dimetilglioximo de potássio e paládio (1949) Developed Feigl-Suter colorimetric test using sodium rhodizonate for forensic ballistics (1954) With Coriolano J. da Silva. Uma reação de identificação de radicais ácidos nas combinações orgânicas (1941) With A. Schaeffer. Eine neue methode zur massanalytischenr Bestimmung von Nitraten. Anal. Chim. Acta 7(6):507-11, 1952 With G.B. Heisig. Some new demonstrations of fluorescence. J. Chem. Educ, 29(4):192-4, 1952 With Hans E. Feigl. Sobre a reatividade do paládio liga como complexo interno: um novo teste específico para cianeto em soluções alcalinas (1953) With V. Gentil. A new spot test for urease. Biol. Jb. 20:47-9, 1953 With A. Caldas. Alizarin blue as a selective reagent for traces of copper. Anal. Chim. Acta 8(2):117-21, 1953 With V. Gentil. Eine neue Tüpfelreaktion für Zinnmit Morin. Mikrochim. Acta 1:90-2, 1954 With V. Gentil. Neue Anwendungen von Reaktionen mit Natriumrhodizonat in der Tüpfelanalyse. Mikrochim. Acta 3-4:435-43, 1954 With H.E. Feigl & D. Goldstein. A sensitive and specific test for coumarin through photocatalysis. J. Amer. Chem. Soc. 77(15):4162-3, 1955 With Cécile Stark. Spot test reaction for detection of sulphur element. Anal. Chem. 27(11):1838, 1955 With V. Gentil. Spot reaction for acidic polynitro compounds. Anal. Chem. 27(3):432-3, 1955 With L. Hainberger. Formaldehyde. Chem. Anal. 44(2):47-8, 1955 With H.E. Feigl & D. Goldstein. A sensitive and specific test for coumarin through photocatalysis. J. Amer. Chem. Soc. 77(15):4162-3, 1955 With V. Gentil. Spot test for detection of inositol. Mikrochim. Acta 5-6:1004-7, 1955 With Alcides Caldas & Ernesto Silva. Algumas novas contribuições às análises de toque inorgânica e orgânica. Aplicação do desmascaramento do iônio ferrocianeto para a identificação rápida do mercúrio em drogas medicinais. An. Acad. Bras. Cien. 27(2), 1955 With C. Costa Neto. Algumas novas contribuições às análises de toque inorgânica e orgânica. Identificação do molibdênio, tungstênio e vanádio por meio de reação catalítica. An. Acad. Bras. Cien. 27(2), 1955 With V. Gentil. Spot test procedures for differentiation of quinoline and isoquinoline. Anal. Chem. 28(8):1309-10, 1956 With C. Costa Neto. Spot test for diketones and quinones based on catalytic effect. Anal. Chem. 28(3):397-9, 1956 With C. Stark-Mayer. Spot test for trace ethanol. Chem. Anal. 45(2):39-40, 1956 With C. Stark-Mayer. Spot test for acetate in formic and formates. Chem. Anal. 45(2):46-7, 1956 With D. Goldstein. A specific test for cobalt. Analyst 81(1969):709-10, 1956 Spot reactions for examination of filter papers. Z. Anal. Chem. 152(1-3):52-5, 1956 With Cécile Stark & L. Vocak. Algumas novas contribuições às análises de toque inorgânica e orgânica. Identificação específica do enxofre elementar e de compostos orgãnicos contendo grupo alcoolico secundário. An. Acad. Bras. Cien. 27(2), 1957 With V. Gentil. Spot tests based on Nencki synthesis of rhodanine (rhodanic acid). Anal. Chem. 29(11):1715-6, 1957 With D. Goldstein. Tests for aluminium and hydroxy triphenyl methane dyes. Anal. Chem. 29(3):456-8, 1957 With D. Goldstein. Spot tests for nitromethane, monochloro (Brome) acetic acid, dimethyl sulphate, iodomethane and methyl-sulphuric. Anal. Chem. 29(10):1522-3, 1957 With C. Stark-Mayer. Spot test for paranitraniline. Chem. Anal. 46(2):37-8, 1957 With C. Stark-Mayer. New specific test for calcium. Anal. Chim. Acta 19(5):437-9, 1958 With E.Jungreis. Spot tests for ascertaining the purity of n,n’-dialkylanilines. Chem. Anal. 47(3):64, 1958 With E.Jungreis. Spot test for phenols and alkylated anilines based on the Duff formylation. Analyst 83(993):666-9, 1958 With E. Jungreis. Spot test detection of phenylhydrazine and arsenic acids. Talanta 1(4):367-8, 1958 With E .Jungreis. Micro detection of hydrogen in organic compounds. Mikrochim. Acta 6:812-4, 1958 Published Chemistry of Specific, Selective and Sensitive Reactions (1949) in Brazil. It was considered one of most notable works in chemistry of all the times. Discovered dozens of new solid-state reactions in With Luiz Ignacio Miranda & Hans Albert Sutter. Reações
Francisco Fonck
Franz Adolf Fonck, German-born Chilean naturalist, explorer, archeologist, historian, ethnologist and geographer (Goch, North Rhine Westphal 11 March 1830 – Quilpué, Valparaiso Region 12 October 1912) Predicted the existence of endoscopy and x-rays (1878) DISCOVERED NEW PLANT SPECIES (described by Philippi in 1858) Pteris semiadnata (Adiantaceae) Senecio gnidioides (Asteraceae) Senecio triodon (Asteraceae) Fonkia uliginosa (Plantaginaceae) Deschampsia laxa (Poaceae) Poa chonotica (Poaceae) Elymus chonoticus (Poaceae) Lepidothamnus fonkii (Podocarpaceae) Euphrasia perpusilla (Scrophulariaceae) Ourisia pygmaea (Scrophulariaceae) Tribeles australis (Scrophulariaceae) Solanum brevidens (Solanaceae) Valeriana fonkii (Valerianaceae) Viola muscoides (Violaceae) HONORS Fonkia Philippi 1859 (Plantaginaceae) Fonckia Roewer 1913 (Arachnida)
Flávio da Fonseca
Flávio Oliveira Ribeiro da Fonseca, Brazilian zoologist (Rio de Janeiro 12 October 1900 – São Paulo 22 May 1963) Brother of mycologist and parasitologist Olympio da Fonseca Obtained international recognition for his studies on acarology Authored about 130 works Demonstrated Rickettsia brasiliensis transmission by ticks Proposed an original technique for distinguishing specifically between Leishmania sp. and Leptomonas sp. (1932) Improved techniques of preparing anti-tetanus serum and other immunotherapeutic products First to verify the conservation of the yellow fever virus by inoculation in the testicles of cat or Ctenomys in C.R.Soc. Biol. Paris (1938) & Mem. Inst. Butantan 12 (1938) DESCRIBED TAXA DIPTERA Genera Neivamyia 1930 with Pinto Shannoniella 1940 with Silva Ramos Townsendmyia 1932 with Prado Species 22 ACARI Families Dasyponyssidae 1940 Pneumophionyssidae 1940 Subfamily Dasyponyssinae 1940 Genera Bdellonyssus 1941 Bolivilaelaps 1940 Camerolaelaps 1960 Cavilaelaps 1937 Dasyponyssus 1940 Edentalges 1954 Gigantoelaps 1939 Hirstesia 1948 Hirstionyssus 1948 Ischnolaelaps 1936 Ixobiodes 1934 Kolenationyssus 1948 Lepronyssoides 1943 Lobalges 1954 Mysolaelaps 1936 Neoichoronyssus 1941 Neoparalaelaps 1936 Oudemansiella 1948 Pneumophionyssus 1940 Rhinolaelaps 1960 Schistolaelaps 1960 Trombewingia 1955 Trouessalges 1954 Species 67 Protozoa Genus Muniziella 1939 Species 24 1 Trematoda species HONORS (Acari) Fonsecalges Fain 1962 Fonsecia Radford 1942 Fonsecula Loomis 1966 Flavionyssus Castro 1948
Florentino Felippone
Florentino Silvestre Felippone Bentos, Uruguayan physician and naturalist (Paysandu 20 June 1852 – Paysandu 24 July 1939) DESCRIBED TAXA Plantae (with Beauverd 1922) Echium plantagineum var. monodasystemon Mollugo verticillata var. subsessile Oxalis articulata var. nodulosa Oxalis sellowiana var. caulescens Polygala linoides var. ambigua Richardsonia brasiliensis var. dubia Mollusca Odontostomus demedinae 1938 with Barattini HONORS Felipponea Brotherus 1912 (Musci) Felipponea Dall 1919 (Mollusca Gastropoda)
Florence family
Antoine Hercule Romuald Florence, French-born Brazilian photographer, painter, engraver and printer (Nice 29 February 1804 – Campinas, São Paulo State 27 March 1879) Presented first detailled report about Apiaká Natives Enunciated the concept of soundscape and specificity of animal voice CONTRIBUTIONS TO PHOTOGRAPHY Developed poliphotographic process, a photographic process that permit obtaining copies by contact in photosensitive substances impregnated paper (1833) before Talbot (1834-9) First used paper in photographic essays before Talbot Coined the term photography independently (1833) Proposed the use of ammonium hydroxide in fixing photographical pictures IMPROVEMENTS/INVENTIONS Created poligraphy, a new printing method (1830) A new system to use musical notation for recording BIRD songs and vocalizations of other animals (Zoophony) A new printing method to avoid falsification (1842) Described type-syllables, a forerunner of shorthand (1847) Invented pulvography, a powder printing process (1860) Printing of oil paintings and colored prints Stereo painting (1859) Pneumatic or hydrostatic wheel (1838) Production of chili hats and every kind of straw hats (1839) A wash hair (1858) Synoptic dictionary (1853) A new archictectural order named Palmian or Brazilian (1852) His son, Guilherme Florence, mining engineer (Campinas, São Paulo State 19 June 1864 – São Paulo 05 October 1942) Created a new method for rapid determination of monazite based on microscopical observation Proposed a process of volumetric dosage of molybdenum and phosphorus in iron and manganese ores described in Rev Soc. Bras. Ciencias 3, 1919 Proposed the use of microscope to study of silk crystals Patented Pyrites Formicides, a component of ant killer (1904) HONORS Florenceia Mezzalira 1974 (Fossil Bivalvia) Florencite Hussak & Prior 1900 (Mineral)
Flaminio Favero
Flamínio Favero, Brazilian coroner (São Paulo 26 October 1895 – São Paulo 12 February 1982) ACHIEVEMENTS De um meio de diagnóstico diferencial entre as lesões “intra-vitam” e “post-mortem”. Bol Soc. Med.Cir. S. Paulo 12:257, 1920 Developed Favero test or reaction for diagnosis of early pregnancy (a modification of iodine test) Proposed the post-mortem investigation of histological sections from injured zones or Flaminio Favero test Eponym of Favero-Misishia reaction