Quiñones Oscar, Oh Jeong-Eun, Vanderford Brett, Kim Joon Ha, Cho Jaeweon, Snyder Shane A
Water Quality Research and Development Division, Southern Nevada Water Authority, 1350 Richard Bunker Avenue, Henderson, Nevada 89015, USA.
Environ Toxicol Chem. 2007 Jul;26(7):1349-54. doi: 10.1897/06-469r.1.
The objective of the present study was to conduct a preliminary assessment for perchlorate in surface water, drinking water, and wastewater treatment plant effluent samples obtained from the Nakdong and Yeongsan watersheds in the Republic of Korea. Samples were analyzed for perchlorate using ion chromatography with suppressed conductivity detection (IC-CD) and/or liquid chromatography with tandem mass spectrometry detection (LC-MS/MS). Method reporting limits were 5.0 microg/L for IC-CD and 0.05 microg/L for LC-MS/MS analysis. At perchlorate levels above 5.0 microg/L, IC-CD and LC-MS/MS provided comparable results. The levels of perchlorate detected in the samples procured from the Yeongsan watershed were < 5.0 microg/L in each case. However, Nakdong watershed samples contained perchlorate at levels up to 60 microg/L. The highest concentrations of perchlorate were found in surface water samples, although drinking water contained perchlorate at concentrations up to 35 microg/L. In a subset of samples analyzed by LC-MS/MS, chlorate and bromate also were detected at concentrations ranging from < 0.10 to 44 microg/L and < 0.10 to 2.6 microg/L, respectively. To the best of the authors' knowledge, this is the first perchlorate assessment reported for water sources in the Republic of Korea.
本研究的目的是对从韩国洛东江和荣山江流域采集的地表水、饮用水和污水处理厂出水样本中的高氯酸盐进行初步评估。使用抑制电导检测离子色谱法（IC-CD）和/或串联质谱检测液相色谱法（LC-MS/MS）对样本中的高氯酸盐进行分析。IC-CD的方法报告限为5.0微克/升，LC-MS/MS分析的方法报告限为0.05微克/升。在高氯酸盐水平高于5.0微克/升时，IC-CD和LC-MS/MS提供了可比的结果。从荣山江流域采集的样本中检测到的高氯酸盐水平在每种情况下均<5.0微克/升。然而，洛东江流域的样本中高氯酸盐含量高达60微克/升。高氯酸盐浓度最高的是地表水样本，尽管饮用水中的高氯酸盐浓度高达35微克/升。在通过LC-MS/MS分析的一部分样本中，还分别检测到浓度范围为<0.10至44微克/升和<0.10至2.6微克/升的氯酸盐和溴酸盐。据作者所知，这是韩国首次报道的对水源中高氯酸盐的评估。
