Hladik Michelle L, Smalling Kelly L, Kuivila Kathryn M
US Geological Survey, 6000 J. Street, Placer Hall, Sacramento, CA 95819, USA.
Bull Environ Contam Toxicol. 2008 Feb;80(2):139-44. doi: 10.1007/s00128-007-9332-2. Epub 2008 Jan 10.
A method was developed for the analysis of over 60 pesticides and degradates in water by HLB solid-phase extraction and gas-chromatography/mass spectrometry. Method recoveries and detection limits were determined using two surface waters with different dissolved organic carbon (DOC) concentrations. In the lower DOC water, recoveries and detection limits were 80%-108% and 1-12 ng/L, respectively. In the higher DOC water, the detection limits were slightly higher (1-15 ng/L). Additionally, surface water samples from four sites were analyzed and 14 pesticides were detected with concentrations ranging from 4 to 1,200 ng/L.
开发了一种通过HLB固相萃取和气相色谱/质谱法分析水中60多种农药及其降解产物的方法。使用两种具有不同溶解有机碳（DOC）浓度的地表水来测定方法回收率和检测限。在DOC含量较低的水中，回收率和检测限分别为80%-108%和1-12 ng/L。在DOC含量较高的水中，检测限略高（1-15 ng/L）。此外，对四个地点的地表水样本进行了分析，检测到14种农药，浓度范围为4至1200 ng/L。
