THE EFFECT OF COGNITIVE TRAINING IN ANTHROPOLOGY ON ETHNOCENTRIC ATTITUDESFRECH W. P.PSYCHOLOGY IN THE SCHOOLS. 1975, Vol 12, Num 3, pp 364-370Article

RAPID DETERMINATION OF LEAD IN STEEL BY FLAMELESS ATOMIC ABSORPTION SPECTROMETRY = DOSAGE RAPIDE DE PB DANS L'ACIER PAR SPECTROMETRIE D'ABSORPTION ATOMIQUE SANS FLAMMEFRECH W.1975; ANAL. CHIM. ACTA; PAYS-BAS; DA. 1975; VOL. 77; PP. 43-51; BIBL. 20 REF.Article

TRAINS-NAVETTES TYPE B'B'+B'B', SERIE BE8/8, ANNEE DE CONSTRUCTION 1976, DE LA FORCHBAHN S.A., ZURICH (FB)FRECH W.1978; REV. BROWN BOVERI; CHE; DA. 1978; VOL. 65; NO 12; PP. 764-770; BIBL. 5 REF.Article

RAPID DETERMINATION OF BISMUTH IN STEELS BY FLAMELESS ATOMIC ABSORPTION = DOSAGE RAPIDE DE BI DANS LES ACIERS PAR ABSORPTION ATOMIQUE SANS FLAMMEFRECH W.1975; Z. (FRESENIUS) ANAL. CHEM.; DTSCH.; DA. 1975; VOL. 275; NO 5; PP. 353-357; ABS. ALLEM.; BIBL. 25 REF.Article

RAPID DETERMINATION OF ANTIMONY IN STEEL BY FLAMELESS ATOMIC-ABSORPTIONFRECH W.1974; TALANTA; G.B.; DA. 1974; VOL. 21; NO 6; PP. 565-571; ABS. ALLEM. FR.; BIBL. 17 REF.Article

INVESTIGATIONS OF REACTIONS INVOLVED IN FLAMELESS ATOMIC ABSORPTION PROCEDURES. I. APPLICATION OF HIGH TEMPERATURE EQUILIBRIUM CALCULATIONS TO A MULTICOMPONENT SYSTEM WITH SPECIAL REFERENCE TO THE INTERFERENCE FROM CHLORINE IN THE FLAMELESS ATOMIC ABSORPTION METHOD FOR LEAD IN STEELFRECH W; CEDERGREN A.1976; ANAL. CHIM. ACTA; PAYS-BAS; DA. 1976; VOL. 82; NO 1; PP. 83-92; BIBL. 21 REF.Article

INVESTIGATIONS OF REACTIONS INVOLVED IN FLAMELESS ATOMIC ABSORPTION PROCEDURES. VII: THEORETICAL AND EXPERIMENTAL STUDY OF FACTORS INFLUENCING THE DETERMINATION OF SILICONFRECH W; CEDERGREN A.1980; ANAL CHIM. ACTA; ISSN 0003-2670; NLD; DA. 1980; VOL. 113; NO 2; PP. 227-235; BIBL. 13 REF.Article

Probleme und Chancen der schweizerischen Stahlindustrie = Problems and chances of the Swiss steel industryyFRECH, W.Technica. 1986, Vol 35, Num 20, pp 42-45, issn 0040-0866Article

A NEW FURNACE DESIGN FOR CONSTANT TEMPERATURE ELECTROTHERMAL ATOMIC ABSORPTION SPECTROSCOPYFRECH W; JONSSON S.1982; SPECTROCHIMICA ACTA. PART B: ATOMIC SPECTROSCOPY; ISSN 0584-8547; GBR; DA. 1982; VOL. 37; NO 12; PP. 1021-1028; BIBL. 14 REF.Article

DIRECT DETERMINATION OF TRACE METALS IN SOLID SAMPLES BY ATOMIC ABSORPTION SPECTROMETRY WITH ELECTROTHERMAL ATOMIZERS. II. DETERMINATION OF LEAD IN STEELS AND NICKEL-BORE ALLOYSLUNDBERG E; FRECH W.1979; ANAL. CHIM. ACTA; NLD; DA. 1979; VOL. 104; NO 1; PP. 75-84; BIBL. 11 REF.Article

INVESTIGATIONS OF REACTIONS INVOLVED IN FLAMELESS ATOMIC ABSORPTION PROCEDURES. II. AN EXPERIMENTAL STUDY OF THE ROLE OF HYDROGEN IN ELIMINATING THE INTERFERENCE FROM CHLORINE IN THE DETERMINATION OF LEAD IN STEELFRECH W; CEDERGREN A.1976; ANAL. CHIM. ACTA; PAYS-BAS; DA. 1976; VOL. 82; NO 1; PP. 93-102; BIBL. 7 REF.Article

INFLUENCE OF INSTRUMENTAL RESPONSE TIME ON INTERFERENCE EFFECTS IN GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRYLUNDBERG E; FRECH W.1981; ANAL. CHEM. (WASH.); ISSN 0003-2700; USA; DA. 1981; VOL. 53; NO 9; PP. 1437-1442; BIBL. 10 REF.Article

INVESTIGATIONS OF REACTIONS INVOLVED IN ELECTROTHERMAL ATOMIC ABSORPTION PROCEDURES. VIII: A THEORETICAL AND EXPERIMENTAL STUDY OF FACTORS INFLUENCING THE DETERMINATION OF PHOSPHORUSPERSSON JA; FRECH W.1980; ANAL. CHIM. ACTA; NLD; DA. 1980; VOL. 119; NO 1; PP. 75-89; BIBL. 29 REF.Article

INVESTIGATIONS OF REACTIONS INVOLVED IN FLAMELESS ATOMIC ABSORPTION PROCEDURES. III. A STUDY OF FACTORS INFLUENCING THE DETERMINATION OF LEAD IN STRONG SODIUM CHLORIDE SOLUTIONS.FRECH W; CEDERGREN A.1977; ANAL. CHIM. ACTA; PAYS-BAS; DA. 1977; VOL. 88; NO 1; PP. 57-67; BIBL. 16 REF.Article

INVESTIGATIONS OF REACTIONS INVOLVED IN FLAMELESS ATOMIC ABSORPTION PROCEDURES. IV. A THEORETICAL STUDY OF FACTORS INFLUENCING THE DETERMINATION OF ALUMINIUM.PERSSON JA; FRECH W; CEDERGREN A et al.1977; ANAL. CHIM. ACTA; PAYS-BAS; DA. 1977; VOL. 92; NO 1; PP. 85-93; BIBL. 17 REF.Article

A CRITICAL STUDY OF SOME METHODS USED TO INVESTIGATE ATOM FORMATION PROCESSES IN GFAASFRECH W; ZHOU NG; LUNDBERG E et al.1982; SPECTROCHIM. ACTA, B: AT. SPECTROSC.; ISSN 0584-8547; GBR; DA. 1982; VOL. 37; NO 8; PP. 691-702; BIBL. 16 REF.Article

CHEMICAL REACTIONS IN ATOM RESERVOIRS USED IN ATOMIC ABSORPTION SPECTROSCOPYFRECH W; PERSSON JA; CEDERGREN A et al.1980; PROG. ANAL. AT. SPECTROSC.; ISSN 503134; GBR; DA. 1980; VOL. 3; NO 4; PP. 279-297; BIBL. 39 REF.Article

ROUTINE USE OF FLAMELESS AAS FOR THE DETERMINATION OF LEAD IN HIGH AND LOW ALLOY STEELSFRECH W; LUNDGREN G; LUNNER SE et al.1976; ATOM. ABSORPT. NEWSLETTER; U.S.A.; DA. 1976; VOL. 15; NO 3; PP. 57-60; ABS. ALLEM.; BIBL. 7 REF.Article

DETERMINATION OF ALUMINIUM IN LOW-ALLOY AND STAINLESS STEELS BY FLAMELESS ATOMIC ABSORPTION SPECTROMETRY.PERSSON JA; FRECH W; CEDERGREN A et al.1977; ANAL. CHIM. ACTA; PAYS-BAS; DA. 1977; VOL. 89; NO 1; PP. 119-126; BIBL. 16 REF.Article

INVESTIGATIONS OF REACTIONS INVOLVED IN FLAMELESS ATOMIC ABSORPTION PROCEDURES. V. AN EXPERIMENTAL STUDY OF FACTORS INFLUENCING THE DETERMINATION OF ALUMINIUM.PERSSON JA; FRECH W; CEDERGREN A et al.1977; ANAL. CHIM. ACTA; PAYS-BAS; DA. 1977; VOL. 92; NO 1; PP. 95-104; BIBL. 8 REF.Article

INVESTIGATIONS OF REACTIONS INVOLVED IN ELECTROTHERMAL ATOMIC ABSORPTION PROCEDURES. XI: A THEORETICAL AND EXPERIMENTAL INVESTIGATION OF FACTORS INFLUENCING THE DETERMINATION OF TINLUNDBERG E; BERGMARK B; FRECH W et al.1982; ANAL. CHIM. ACTA; ISSN 0003-2670; NLD; DA. 1982; VOL. 142; PP. 129-142; BIBL. 28 REF.Article

INVESTIGATIONS OF REACTIONS INVOLVED IN FLAMELESS ATOMIC ABSORPTION PROCEDURES. VI. A STUDY OF SOME FACTORS INFLUENCING THE DETERMINATION OF LEAD IN SULPHATE MATRICES.JOHANSSON K; FRECH W; CEDERGREN A et al.1977; ANAL. CHEM. ACTA; PAYS BAS; DA. 1977; VOL. 94; NO 2; PP. 245-256; BIBL. 12 REF.Article

Temperature dependence of atomization efficiencies in graphite furnacesFRECH, W; BAXTER, D. C.Spectrochimica acta. Part B : Atomic spectroscopy. 1990, Vol 45, Num 8, pp 867-886, issn 0584-8547, 20 p.Article

INVESTIGATIONS OF REACTIONS INVOLVED IN ELECTROTHERMAL ATOMIC ABSORBTION PROCEDURES. IX: AN ATOMIZATION SYSTEM WITH CONTROLLED ATMOSPHERE AND TEMPERATURE FOR THE DETERMINATION OF VOLATILE ELEMENTS IN COMPLEX MATRICESCEDERGREN A; FRECH W; LUNDBERG E et al.1981; ANAL. CHIM. ACTA; ISSN 0003-2670; NLD; DA. 1981; VOL. 128; PP. 1-8; BIBL. 9 REF.Article

EVALUATION OF SOME CRITICAL FACTORS AFFECTING DETERMINATION OF ALUMINUM IN BLOOD, PLASMA, OR SERUM BY ELECTROTHERMAL ATOMIC ABSORPTION SPECTROSCOPYFRECH W; CEDERGREN A; CEDERBERG C et al.1982; CLINICAL CHEMISTRY; ISSN 0009-9147; USA; DA. 1982; VOL. 28; NO 11; PP. 2259-2263; BIBL. 19 REF.Article