Ultraviolet and light absorption spectrometry

Spectrometric determination of platinum with methoxypromazine maleate

“…Efrotomycin is a new antibiotic (1, 2) for use in feed as a growth-promoting agent and for the control of infections. Its structure has recently been reported (3): an N-methylhydroxypyridone glycoside (I), this drug is a member of the i class of antibiotics which also includes mocimycin (kirromycin), heneicomycin, and goldinomycin (2,4), which act by the inhibition of protein biosynthesis (5,6). The structural elucidation of this latter compound (first reported as antibiotic X-5108 (7)), which is the aglycone of the disaccharide efrotomycin (3, 8), has been described in the series of papers by Maehr and co-workers (7)(8)(9)(10)(11)(12)(13).…”

“…Several spectrophotometrlc methods have been reported for the determination of platinum (1)(2)(3)(4)(5)(6)(7)(8). Most methods (9-18) involve either heating the solution or allowing it to stand for a long time for maximum color development.…”

Inorganic and geological materials

“…Other interesting works which have been noted since publication of the Fundamental review (88) include comments by Filipenko on photometric methods (172,173), a review by Nazarenko and Flyantikova (159) of methods for the analysis of high purity substances, and an account by Beckman et al (79) of the history of spectrophotometry at Beckman Instruments, Inc. Fluorometric and Phosphorometric Methods. The books by Snell (577) and Sandell and Onishi (206) both include discussions of fluorometric methods of analysis and supplement the recent monograph of Schulman (572) which discusses principles and general practice.…”

Spectrophotometric determination of platinum(IV) in alloys, complexes, environmental, and pharmaceutical samples using 4-[N,N-(diethyl)amino] benzaldehyde thiosemicarbazone

“…Many complexation reactions of platinum with different ligands were investigated for the development of spectrophotometric reagents for platinum. Beamish (1966); Beamish and Van Loon (1972); Boltz et al (1966Boltz et al ( , 1968Boltz et al ( , 1970Boltz et al ( , 1972Boltz et al ( , 1974Boltz et al ( , 1976; Howell et al (1978Howell et al ( , 1980Howell et al ( , 1982Howell et al ( , 1984 have reviewed the spectrophotometric methods for the determination of platinum. A survey of literature reveals that a large number of reagents are suitable, either directly or after extraction into a suitable solvent.…”