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采用ＧＤＸ－５０１吸附剂富集水中痕量丙溴磷，然后用气相色谱法直接测定，方法简便、准确、实用。水中丙溴磷的检出限为 ０．４ μｇ／Ｌ，低、中、高 ３种浓度的平均加标回收率为８８．６％～９９．３％，相对标准偏差在３．２３％～４．９６％范围内。
Adopting GDX-501 adsorbent to enrich the trace concentration of profenofos in water, and then measuring directly with gas chromatography, the method is simple, accurate and practical. The detection limit of profenofos in water was 0.4 μg / L, and the average recoveries for three concentrations of low, medium and high were 88.6% -99.3% with relative standard deviations of 3.23% 4.96% range.