摘要:

The influence of octahedral replacement of Al3+by Fe3+on the infrared spectra of montmorillonites in the domain of OH vibrations is presented.

ISSN:0038-7010    

DOI:10.1080/00387018408072640

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

A W. wire coil probe made from 0.33 mm thick wire formed by winding the W wire around a 0.9 mm wire is used to Introduce samples into a preheated furnace. Using this device interference from up to 0.4% MgC12is effectively eliminated. Detailed procedures are given for the analysis of Pb in blood and melted snow. Re suits obtained for Pb in blood range from 93 to 106% of the accepted values. Recoveries of Pb spikes from melted snow samples are from 90 to 100%. Each coil may be used for up to 200 firings.

ISSN:0038-7010    

DOI:10.1080/00387018408072641

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

By comparing the Raman spectra of the methyl-d0- and methyl-d3-(4-tert-butylpyridine)cobaloxime1complexes, a number of bands were observed to shift due to the isotope effect. Bands appearing at 2900 cm−1In the spectrum of the lighter molecule and at 2109 cm−1in the spectrum of the C-deuterated species are assigned respectively to the axial methyl C-H and C-D symmetric stretches; the bands at 1172 and

ISSN:0038-7010    

DOI:10.1080/00387018408072642

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

Atomic absorption using furnace atomization suffers from three major problems. First, the matrix causes a change in absorption signal, second, the decomposition products cause a very high, variable background, and third, volatile elements are often lost during the evaporation and ashing steps. These problems are significantly reduced using the double stage system described below.

ISSN:0038-7010    

DOI:10.1080/00387018408072643

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

It has been assumed that the structure of binary solution may change depending on the molar ratio of solute to solvent and refer to the presence of some critical concentration where solute-solvent interactions change. Spectroscopic investigation on aqueous solutions of propylene carbonate and alkali halides have really shown presence of critical concentrations. Furthermore, the latter critical concentration of aqueous alkali halide solutions has revealed concern with the reactivity of iodide ions which have been added to the solutions. The latter finding will be the first observation of the concern between structure and reactivity of aqueous solutions.

ISSN:0038-7010    

DOI:10.1080/00387018408072644

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

ISSN:0038-7010    

DOI:10.1080/00387018408072645

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

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

ISSN:0038-7010    

DOI:10.1080/00387018408072639

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor