Laser microprobe mass analysis of o-phenylenediamine on asbestos fibres

✍ Scribed by J.K. de Waele; E.F. Vansant; F.C. Adams

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 928 KB
• Volume: 161
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/s0003-2670(00)85775-x

✦ Synopsis

The adsorption behaviour of o-phenylenediamine and its catalytically formed oxidation products such as 2,3_diaminophenazine and higher-molecular-weight compounds on different varieties of asbestos is studied by using laser desorption mass spectrometry. The results prove that amosite adsorbs the product more easily than do crocidobte and anthophyllite, whereas U.1.C.C chrysotile A does not give rise to detectable adsorption, and the adsorption observed for U.I.C.C. chrysotile B is only fair. The method shows potential for the investigation of the surface reactivity of pure and industrially transformed asbestos and other fibrous materials.