ANOVA and Tukey's interpretation of the innovative FPSE method applied to museum textiles

Abstract

The need to protect textile museum collections against pests has led to the use of pesticides. Pesticides can persist over time, thus leading to problems such as possible injury to museum staff. To address this problem, attempts have been made to obtain an overview of pesticide detection without destroying collections. In this paper, a nondestructive method for the extraction and detection of three pesticides was optimised. The selection of the main parameters of the method was carried out using statistical analysis of the obtained data by applying one-way ANOVA and the Tukey test. FPSE optimisation is performed by evaluating the following parameters: polymer selection (individual or mixture of polymers), acid catalyst (trifluoroacetic acid, acetic acid and hydrochloride acid), amount of polymer (1 g, 2.5 g or 5 g), polymerisation time (30 minutes, 120 minutes and 240 minutes), ultrasonic bath temperature (40°C and 70°C), type of bath used to obtain the sol-gel (ultrasonic bath, water bath with stirring and mechanical stirrer) and influence of the last steps of the preparation of the sol-gel solution. After the extraction system was optimized, statistical analysis was conducted to assess the influence of pesticide extraction time on FPSE and desorption from FPSE in ethyl acetate.