Determination of iron and copper in old manuscripts by slurry sampling graphite furnace atomic absorption spectrometry and laser ablation inductively coupled plasma mass spectrometry

Role of laser ablation–inductively coupled plasma–mass spectrometry in cultural heritage research: A review

“…The research group of Wagner extendedly used LA-ICP-MS to investigate the degradation of written heritage [89][90][91], particularly in order to evaluate the efficacy of treatments against ink corrosion. The phenomenon weakens and darkens the paper support and it is caused by acid-catalyzed hydrolysis and metal-catalyzed oxidation processes of iron or copper-based ancient inks.…”

“…The conservation treatments are normally based on the extraction and complexation of metals causing damages to the paper [89,90] or deacidification processes by magnesium compounds [91]. Thus, the effectiveness and the side effects of treatments can be monitored evaluating the distribution and concentration before and after the treatment of 57 Fe and 65 Cu contained in the ink [89], 57 Fe, 65 Cu and 55 Mn in case of DTPA treatment [90] or of 24 Mg belonging to the de-acidification compounds [91]. The experimental conditions were chosen in order to intentionally leave visible trace of the ablation and repeat the measure after the treatment following a predefined line, as closely as possible to the previous measurement (1 mm).…”

“…The experimental conditions were chosen in order to intentionally leave visible trace of the ablation and repeat the measure after the treatment following a predefined line, as closely as possible to the previous measurement (1 mm). If possible, the quantitative determination can be carried out with other techniques, such as graphite furnace atomic absorption spectroscopy [89]. Optimization was made using NBS SRM 612 glass standard, in one case with respect to S/N ratio of 59 Co [89].…”

Iron analysis in atmospheric water samples by atomic absorption spectroscopy (AAS) in water?methanol

“…The pyrolysis and atomization temperatures were the most important factors in the thermal programs developed by Silva et al [18] for determination of trace metals in mineral coal. It is generally assumed that these two variables have a significant effect on the signal [14,17,19]. Some effects of the medium were eliminated by simply increasing the atomization temperature [20].…”

The Influence of the Conditioning Procedure on Potentiometric Characteristics of Solid Contact Calcium‐Selective Electrodes in Nanomolar Concentration Solutions

“…In the last few years the application field of this technique has been increased to paper samples [43,44] as well to bioorganic samples of moss [45] or even of protein samples from human brain [46]. The detection limits, which can be obtained by this technique, lie in the ppb range.…”