摘要:

Prostaglandins of the A, B, E and F series, together with 8-iso-E1, have been separated and characterized by gas chromatography and mass spectrometry through the use of TMSi and MO-TMSi derivatives.

ISSN:0003-2719    

DOI:10.1080/00032716908051309

出版商:Taylor & Francis Group    

年代:1969

数据来源: Taylor

摘要:

An optical density thermometer is described for determining the temperature of centrifuge rotors. Quantitation is based on the change in the concentration of the vapor phase of a volatile substance, such as bromine, with temperature. Centrifugal force holds the liquid phase away from the light path and removes condensation from the optical windows.

ISSN:0003-2719    

DOI:10.1080/00032716908051310

出版商:Taylor & Francis Group    

年代:1969

数据来源: Taylor

摘要:

A fluorescence quenching method for the determination of fluoride ion over the concentration range from 10−9to 10−6M is presented. The fluoride ion is added to the fluorescent chelate of aluminum(III) and PAN [1- (2-pyridylazo)-2-naphthol]: the fluoride preferentially complexes the aluminum (III), displacing nonfluorescent PAN. Of the anions tested as possible interferences at equimolar levels, phosphate interferred seriously and iodide interferred somewhat.

ISSN:0003-2719    

DOI:10.1080/00032716908051311

出版商:Taylor & Francis Group    

年代:1969

数据来源: Taylor

摘要:

A procedure for simultaneous determination of microgram amounts of platinum and palladium in solutions of base metals is described. The two metals are isolated on an anion exchange resin-loaded paper disk and determined by X-ray spectrometry. The method is applied to the determination of platinum and palladium in nickel matte.

ISSN:0003-2719    

DOI:10.1080/00032716908051312

出版商:Taylor & Francis Group    

年代:1969

数据来源: Taylor

摘要:

Use of the new, solid-membrane cupric electrode for non-aqueous titrations, a significant advancement over the earlier liquid-membrane electrode, is illustrated. The solid-membrane cupric electrode was used for the complexometric titration of cupric ion with several ligands in methanol, acetone and acetonitrile.

ISSN:0003-2719    

DOI:10.1080/00032716908051313

出版商:Taylor & Francis Group    

年代:1969

数据来源: Taylor

摘要:

A method capable of determining therapeutic blood levels of pseudoephedrine in man is described. The procedure involves partial purification by extraction, formation of the heptafluorobutyryl derivative, and electron capture detection of the prepared derivatives. Serum levels of pseudoephedrine in man are presented. Chemical reactivity, stability and gas chromatographic properties of the ephedrine derivatives are discussed.

ISSN:0003-2719    

DOI:10.1080/00032716908051314

出版商:Taylor & Francis Group    

年代:1969

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue.

ISSN:0003-2719    

DOI:10.1080/00032716908051308

出版商:Taylor & Francis Group    

年代:1969

数据来源: Taylor