【摘 要】
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目的:建立水中苦味酸的简便快速分析方法。方法:采用自动顶空毛细管柱气相色谱法间接测定水中微量苦味酸。结果:本法相关性好(r=0.9997),精密度高(RSD
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目的:建立水中苦味酸的简便快速分析方法。方法:采用自动顶空毛细管柱气相色谱法间接测定水中微量苦味酸。结果:本法相关性好(r=0.9997),精密度高(RSD<3.0%),样品平均加标回收率为96.7%~99.5%,定性检出限为0.004μg/L,定量检出限为0.01μg/L。结论:该方法操作简便、灵敏度高、选择性强,适用于水中苦味酸的快速分析。
Objective: To establish a simple and rapid method for the analysis of picric acid in water. Methods: Indirect determination of picric acid in water by automatic headspace capillary gas chromatography. Results: The method has good correlation (r = 0.9997), high precision (RSD <3.0%), average recoveries of 96.7% -99.5% and qualitative detection limit of 0.004μg / 0.01 μg / L. Conclusion: The method is simple, sensitive and selective. It is suitable for the rapid analysis of picric acid in water.
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