Aspila K I, Carron J M, Chau A S
J Assoc Off Anal Chem. 1977 Sep;60(5):1097-1104.
An interlaboratory quality control study was conducted to provide information to 5 participating Canadian laboratories on their capability in analyzing natural waters for 10 pesticides. The study was designed to identify the quality of each laboratory's working standards for 15 organochlorine pesticides, and the accuracy and precision of each laboratory's analytical procedures. Fifteen samples were provided, of which 3 were standards prepared for direct injection into an electron capture gas chromatograph. Instructions were provided to use these 3 standards for quantitating the pesticide content (8-150 ng/L) in 5 pairs of 1 L water samples. These paired samples contained 10 organochlorine pesticides approaching natural levels. Results of the study indicated that participants were fairly precise and achieved the designed ratio 1.5 for concentrations in the paired samples.
开展了一项实验室间质量控制研究，目的是向5家参与的加拿大实验室提供有关其分析天然水中10种农药能力的信息。该研究旨在确定各实验室15种有机氯农药工作标准品的质量，以及各实验室分析程序的准确性和精密度。提供了15个样品，其中3个是为直接注入电子捕获气相色谱仪而制备的标准品。还提供了使用这3种标准品对5对1升水样中农药含量（8 - 150纳克/升）进行定量的说明。这些成对的样品含有10种接近天然水平的有机氯农药。研究结果表明，参与者的分析相当精确，且成对样品中的浓度达到了设计比例1.5。
