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In recent years, a number of newer designer drugs have entered the illicit drug market. The amphetamine derivatives represent the largest group of designer drugs. This paper describes a method for quantifying p-methoxyamphetamine in human plasma and urine by capillary electrophoresis with a diode array detector. Using an aqueous pH 2.5 phosphate buffer, CE analysis gave peaks with good symmetry and reproducible migration time. Under these experimental conditions, the p-methoxyamphetamine was resolved in 7 min and without interferences from biological matrices. The identification using the migration time was confirmed by UV spectra recorded with a diode array detector DAD (190-350 nm). Prior to CE-DAD analysis, a simple solid phase extraction (SPE) was used for sample cleanup. The main advantages of the present method lie in its simplicity and clean and reliable extraction from plasma and urine. The method was validated according to international guidelines.

Existing studies applying a motivation-based segmentation of Airbnb users are still limited and mainly concentrated in the US; even less are studies applied in the European context. This paper applies an exploratory mixed method approach in Italy, where no study has been published around this research area so far. A qualitative study based on 26 in-depth interviews was carried out to verify if Italians are driven by the same motivations that have been identified by existing literature. Qualitative findings were then used to inform, complemented with a review of the existing literature, to design a survey instrument to collect data. Hence, a factor-cluster analysis was run to profile a sample of 247 Italians based on their motivations to use Airbnb, and a series of chi-square tests was run to investigate whether significant differences exist among clusters based on socio-demographic characteristics (gender, age, marital status, level of education, employment status, and annual income). Three clusters were identified (“Enthusiastic Airbnb lovers”, “Pragmatic Airbnb users” e “Pragmatic authenticity seekers”) with significant differences only based on marital status, level of education and employment status. Contributions to the body of knowledge and managerial implications are discussed and suggestions for further research are given.