Mills G R
Hyder Environmental, Southern Laboratory, Bridgend, UK.
J Chromatogr A. 1998 Jul 10;813(1):63-70. doi: 10.1016/s0021-9673(98)00329-x.
A previously developed on-line automated system for the analysis of polar herbicides in raw and drinking water, was further optimised for use within a routine environmental monitoring laboratory. One-hundred-ml portions of sample were extracted onto interchangeable, PLRP-S packed cartridges, prior to desorption by the mobile phase of an HPLC system. Determination of triazine and phenylurea herbicides was achieved by UV diode array detection, with detection limits ranging between 0.002 and 0.012 microgram l-1. Precision, in HPLC grade water, ranged from 3.1 to 9.7% R.S.D. at the 0.090 microgram l-1 level, as determined at those wavelengths selected for routine analysis. Confirmation of positive results was achieved by library searching of UV spectra. The system was found to be robust for routine analysis, with a sample throughput of ten samples per day.
一个先前开发的用于分析原水和饮用水中极性除草剂的在线自动化系统，在一个常规环境监测实验室中得到了进一步优化。在通过高效液相色谱（HPLC）系统的流动相进行解吸之前，将100毫升的样品萃取到可互换的PLRP-S填充柱上。通过紫外二极管阵列检测法测定三嗪和苯基脲类除草剂，检测限在0.002至0.012微克/升之间。在HPLC级水中，在选定用于常规分析的波长下，于0.090微克/升水平测定的精密度范围为相对标准偏差（R.S.D.）的3.1%至9.7%。通过紫外光谱库检索对阳性结果进行确认。该系统被发现对于常规分析具有稳健性，每天的样品通量为10个样品。
