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应用高效液相色谱法测定盐酸萘甲唑啉含量。采用SphersorbCN柱，以0．01mol／L庚烷磺酸钠溶液（用磷酸调pH至3．8）－乙腈（44：56）为流动相。波长UV－280处检测，流速0．8ml／min。在上述色谱条件下，盐酸萘甲唑啉能得到良好分离。该方法简便、快速。外标法定量计算准确，线性范围0．16μg～0．8μg，r－0．9998，RSD＝0．37％
Determination of Naphazoline Hydrochloride by High Performance Liquid Chromatography. Using SphersorbCN column, with 0.01mol / L sodium heptane sulfonate solution (adjusted to pH 3.8 with phosphoric acid) - acetonitrile (44:56) as the mobile phase. UV-280 wavelength detection, the flow rate of 0.8ml / min. Under the above chromatographic conditions, naphazoline hydrochloride can be well separated. The method is simple and fast. The external standard method is accurate and quantitatively calculated with a linear range of 0.16μg ~ 0.8μg, r-0.9998, RSD = 0.37%