Figure 4From: Investigation of the stabilization of verdigris-containing rag paper by wet chemical treatmentsResults of GPC analysis of the deacidified samples. Left – Molar masses and carbonyl groups of the samples treated with Ca(HCO3)2 after thermally induced accelerated aging. Right – Molar masses and carbonyl groups of the samples treated with Mg(HCO3)2 after thermally induced accelerated aging.Back to article page