Browsing by Author "f18b42e6-2f46-4367-8169-aca6b41f3eb6"

Now showing items 1-5 of 5

    • Determination of polychlorinated biphenyls in biosolids using continuous ultrasound-assisted pressurized ... 
      Rocco, Gabriela; Toledo, Carla; Ahumada Torres, Aída Inés de Lourdes; Sepúlveda, Betsabet; Cañete Molina, Alvaro Félix; Richter Duk, Pablo (ELSEVIER SCIENCE BV, 2008-06-06)
      An efficient continuous pressurized solvent extraction (PSE) method assisted by ultrasound energy was developed for the extraction of polychlorinated biphenyls (PCBs) from biosolids. Analytes were determined in the extracts ...
    • Determination of the bioavailable fraction of triclosan in biosolid-treated soils using a predictive method ... 
      Corrotea, Yanina; Richter Duk, Pablo; Brown, Sally; Sepúlveda, Betsabet; Ascar Estay, María Loreto; Ahumada Torres, Inés (Springer, 2016)
      Purpose Triclosan (TCS, 5-chloro-2-(2,4-dichlorophenoxy) phenol) an antimicrobial compound used in a range of household products, is an emerging hydrophobic organic contaminant, that may be incorporated into soil through ...
    • Rotating disk sorptive extraction of triclosan and methyl-triclosan from water samples 
      Jachero, Lourdes; Sepúlveda, Betsabet; Ahumada, Inés; Fuentes Pérez, Edwar; Richter Duk, Pablo (Springer, 2013)
      A method of sample preparation based on use of rotating disk sorptive extraction (RDSE) has been developed for determination of triclosan (TCS) and methyltriclosan (MTCS) in water samples. The sorptive and desorptive ...
    • Rotating-disk sorptive extraction of nonylphenol from water samples 
      Richter Duk, Pablo; Leiva, Claudio; Choque, Carlos; Giordano, Ady; Sepúlveda, Betsabet (2009)
      In this study the sorption of nonylphenol was implemented on a rotating Teflon disk coated with a PDMS film on one of its surfaces. In this way, the disk, which has a high surface area, contacts only the liquid sample, ...
    • The chemical compositions of essential oils derived from cryptocarya alba and laurelia sempervirens possess ... 
      Touma, Jorge; Navarro, Myriam; Sepúlveda, Betsabet; Pavón, Alequis; Corsini, Gino; Fernández, Katia; Quezada, Claudia; Torres, Angelo; Larrazabal Fuentes, María José; Paredes, Adrián; Neira, Iván; Ferrando, Matías; Bruna, Flavia; Venegas, Alejandro; Bravo, Jessica (MDPI, 2020)
      Cryptocarya alba (Peumo; CA) and Laurelia sempervirens (Laurel; LS) are herbs native to the Chilean highlands and have historically been used for medicinal purposes by the Huilliches people. In this work, the essential ...