A research group from the University of Tehran (Tehran, Iran) used dispersive liquid?liquid microextraction coupled with gas chromatography to determine compounds in rose water, which is the hydrosol portion of the distillate of rose petals.
A research group from the University of Tehran (Tehran, Iran) used dispersive liquid–liquid microextraction coupled with gas chromatography to determine compounds in rose water, which is the hydrosol portion of the distillate of rose petals. Rose water is used for food flavoring, as a component in cosmetic and medical preparations, and for religious purposes in Europe and Asia. Various extraction parameters were tested, including volume of extraction and disperser solvents, temperature, and salt effect. They found that the best results were obtained using a volume of 37.0 µL for the extractor solvent, 0.42 mL for the disperser solvent, and a temperature of 48 °C. The components extracted included benzeneethanol, geraniol, beta-citronellol, nerol, eugenol, and linalool.
Gulf Coast Conference: Increasing Density and Viscosity Throughput with Difficult Samples
October 19th 2023Daniel Wolbrecht, senior technical sales consultant at Anton Paar, held a workshop at the Gulf Coast Conference in Galveston, Texas, focusing on how heated autosampler units can help analyze difficult samples.
An In-Depth Look at Passive Sampling to Determine Contaminants of Emerging Concern
September 29th 2023Núria Fontanals, Senior Researcher in the Analytical and Organic Chemistry Department at the Universitat Rovira i Virgili, outlines the benefits of passive sampling in liquids and how the approach can evolve in the future.