论文部分内容阅读
采用国产高分子多孔微球－ＧＤＸ系列吸附富集，用反相ＨＰＬＣ技术对水体中久效磷、甲基对硫磷和辛硫磷农药残留进行了同时测定。三种不同型号色谱固定相：ＧＤＸ－１０２、ＧＤＸ－３０１及ＧＤＸ－５０１对水体中ｐｐｂ级久效磷、甲基对硫磷和辛硫磷的富集效率分别达到８５％、９３％和９１％以上。采用μ－ＢｏｎｄｄａｐａｋＣ１８作固定相、极性溶剂甲醇－水（７０：３０）作为流动相，流速在０．４～０．８ｍＬ／ｍｉｎ范围内对题示三种有机磷的分离度达到１．２以上。用于水体中有机磷残留进行分析，结果令人满意。
Adopting domestic polymer porous microspheres-GDX series for adsorption enrichment, the residues of monocrotophos, methyl parathion and phoxim in water were determined by reversed-phase HPLC. The enrichment efficiencies of ppb levels of monocrotophos, methyl parathion and phoxim in water were 85%, 93% and 91%, respectively, for three different chromatographic stationary phases: GDX-102, GDX-301 and GDX-501 %the above. Using μ-Bonddapak C18 as the stationary phase and the polar solvent methanol-water (70:30) as the mobile phase, the resolution of the indicated three kinds of organophosphorus was 1.2 in the range of 0.4 ~ 0.8mL / min the above. Organic phosphorus residues in water for analysis, the results are satisfactory.