Department of Analytical Chemistry, University of Valencia, Research Building, 50th Dr. Moliner Street, 46100 Burjassot, Spain.
J Anal Methods Chem. 2012;2012:897872. doi: 10.1155/2012/897872. Epub 2012 Jul 24.
A new passive sampler based on low-density polyethylene (LDPE) layflat tube filled with chrome shavings from tannery waste residues was evaluated to determine volatile organic compounds (VOCs) in indoor and outdoor areas. VOCs were directly determined by head space-gas chromatography-mass spectrometry (HS-GC-MS) without any pretreatment of the sampler and avoiding the use of solvents. Limit of detection values ranging from 20 to 75 ng sampler(-1) and good repeatability values were obtained for VOCs under study with relative standard deviation values from 2.8 to 9.6% except for carbon disulfide for which it was 22.5%. The effect of the amount of chrome shavings per sampler was studied and results were compared with those obtained using empty LDPE tubes, to demonstrate the capacity of chrome shavings to adsorb VOCs.
一种基于低密度聚乙烯（LDPE）扁管的新型被动采样器，内填充来自制革废料的铬屑，用于测定室内和室外环境中的挥发性有机化合物（VOCs）。VOCs 无需对采样器进行任何预处理，也无需使用溶剂，直接通过顶空-气相色谱-质谱法（HS-GC-MS）进行测定。研究中的 VOCs 的检测限值范围为 20 至 75ng 采样器（-1），除二硫化碳（22.5%）外，重复性良好，相对标准偏差值为 2.8%至 9.6%。研究了每个采样器中铬屑的用量的影响，并将结果与使用空 LDPE 管获得的结果进行了比较，以证明铬屑吸附 VOCs 的能力。
