Pintus Valentina, Baragona Anthony J, Cappa Federica, Haiml Christa, Hierl Christina, Sterflinger Katja, Schreiner Manfred
Institute of Science and Technology in Art, Academy of Fine Arts Vienna, Schillerplatz 3, A-1010 Vienna, Austria.
Institute for Conservation-Restoration, Modern-Contemporary Art, Academy of Fine Arts Vienna, Schillerplatz 3, A-1010 Vienna, Austria.
Polymers (Basel). 2022 Feb 7;14(3):633. doi: 10.3390/polym14030633.
This work presents strategic multi-analytical investigations performed on "" by Andy Warhol in order to make a well-informed conservation decision. For determining the type of binding medium used in the artwork, Pyrolysis-Gas Chromatography/Mass Spectrometry (Py-GC/MS) and Thermally Assisted Hydrolysis and Methylation of GC/MS (THM-GC/MS) were employed. The presence of a coating was investigated by Py-GC/MS. Moreover, the comprehension and elucidation of the paint stratigraphy were studied by examining cross-sections of samples taken from both canvases with Optical Microscopy (OM) under reflected visible (Vis) and ultraviolet light (UV) and by Scanning Electron Microscopy with Energy Dispersive X-ray spectroscopy (SEM-EDX). The investigation of possible synthetic organic pigments (SOPs) and extenders was performed by µ-Raman spectroscopy, while micro-Attenuated Total Reflection of Fourier-Transform Attenuated Total Reflection (µ-ATR-FTIR) allowed us to assign each component detected by Py-GC/MS or THM-GC/MS to a specific layer. The data collected from "" show mostly the application of acrylic-based paint as well as alkyd with rosin acids-based ink, thus providing fundamental information about the paint stratigraphy and chemical composition of each layer. In addition to the goal of informing an appropriate conservation-restoration strategy, this work represents a rare scientific study of a work by Andy Warhol.
这项工作展示了对安迪·沃霍尔的《》进行的战略性多分析研究，以便做出明智的保护决策。为了确定艺术品中使用的粘结介质类型，采用了热解气相色谱/质谱联用仪（Py-GC/MS）和热辅助水解甲基化气相色谱/质谱联用仪（THM-GC/MS）。通过Py-GC/MS研究涂层的存在情况。此外，通过在反射可见光（Vis）和紫外光（UV）下用光学显微镜（OM）检查从两块画布上取下的样品的横截面，以及通过扫描电子显微镜与能量色散X射线光谱仪（SEM-EDX）来研究颜料地层学的理解和阐释。通过μ-拉曼光谱对可能的合成有机颜料（SOPs）和增量剂进行了研究，而傅里叶变换衰减全反射微衰减全反射（μ-ATR-FTIR）使我们能够将Py-GC/MS或THM-GC/MS检测到的每个成分归属于特定的层。从《》收集的数据大多显示了丙烯酸基涂料以及含松香酸的醇酸油墨的应用，从而提供了有关各层颜料地层学和化学成分的基本信息。除了为适当的保护修复策略提供信息这一目标外，这项工作代表了对安迪·沃霍尔一件作品的罕见科学研究。
